CN113531165B - Multi-channel reversing ball valve with electric control lifting type - Google Patents
Multi-channel reversing ball valve with electric control lifting type Download PDFInfo
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- CN113531165B CN113531165B CN202110869333.8A CN202110869333A CN113531165B CN 113531165 B CN113531165 B CN 113531165B CN 202110869333 A CN202110869333 A CN 202110869333A CN 113531165 B CN113531165 B CN 113531165B
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- limiting block
- linkage limiting
- linkage
- valve body
- ball valve
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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
- 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
- F16K11/20—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 separate actuating members
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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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
The invention relates to the technical field of multichannel sealing elements, in particular to a multichannel reversing ball valve with an electric control lifting function. According to the electric control lifting type multichannel reversing ball valve, an integrated structural design is adopted, a middle-arranged isolation plate is fixed between the upper valve body and the lower valve body, so that series flow during rotation of a ball body is avoided, and the sealing performance of an inner cavity of the whole ball valve is greatly improved; the inclined internal partition plate with the internal assembly pipe is fixedly connected to the communication ends of the first four channels and the second four channels, so that the opening and closing stroke of the ball valve can be effectively reduced, and the control is convenient; the connection relation among the longitudinal adjusting rod, the first extension control tube and the second extension control tube is switched and controlled through longitudinal adjustment, so that the inner sphere can be freely controlled according to the needs, the operation modes are more various, and the application range is wider; the electric lifter can conveniently and rapidly control the driving relation of the pneumatic actuator, the upper ball body and the lower ball body, and the separating and combining friction force is reduced.
Description
Technical Field
The invention relates to the technical field of multichannel sealing elements, in particular to a multichannel reversing ball valve with an electric control lifting type.
Background
Ball valves are widely applied to industries such as petroleum refining, long-distance pipeline, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and take a significant role in national economy. The ball valve and plug valve are the same type of valve, only its closing member is a ball body, and the ball body can be rotated around the central line of valve body so as to implement opening and closing. Ball valves are used in pipelines mainly to cut off, distribute and change the flow direction of a medium, and can be tightly closed only by rotating the ball valve by 90 degrees and small rotating moment. The ball valve is most suitable for being used as a switch and a cut-off valve. Ball valves are a new type of valve that is widely used.
The ball valve works on the principle that the valve is opened or closed by rotating the valve core. The ball valve switch is portable, small in size, capable of being made into a large caliber, reliable in sealing, simple in structure and convenient to maintain, and the sealing surface and the spherical surface are in a normally closed state and are not easy to be eroded by a medium, so that the ball valve switch is widely applied to various industries.
At present, the multi-channel ball valve can mutually cross air between different channels in the ball rotation process, so that the tightness is influenced, the multi-channel ball valve is a split valve body, the occupied space of the valves with the same pressure and caliber is large, the casting cost is high, the balls in different valve bodies can only synchronously rotate, the balls cannot be independently controlled, the later detection and maintenance are troublesome, and the control is inconvenient.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to solve the problems in the prior art, the improved multi-channel reversing ball valve with the electric control lifting function is provided, and the problems that the existing multi-channel ball valve can mutually cross air between different channels in the ball rotation process, the tightness is affected, the split type valve body is mostly used, the occupied space of the valve with the same pressure and caliber is large, the casting cost is high, the balls in different valve bodies can only synchronously rotate, the independent control cannot be realized, the later detection and maintenance are troublesome, and the control is inconvenient are solved.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a multichannel switching-over ball valve with automatically controlled over-and-under type, includes main valve body, electric lift and pneumatic actuator, the main valve body include valve body, lower valve body and put the division board in, upper valve body upper and lower end and lower valve body upper and lower end all seted up the loading and unloading opening of built-in assembly subsidence groove, upper valve body inside activity be equipped with the last spheroid of built-in first four channels, lower valve body inside activity be equipped with the lower spheroid of built-in second four channels, first four channels and second four channels link end fixedly connected with put inside baffle to one side, the inside central point of put inside baffle to one side put and have inside assembly piping, the inside bolt fastening of assembly subsidence groove of upper valve body upper end have a top sealed lid, top sealed lid upper end bolt fastening be used for installing electric lift and pneumatic actuator, the inside activity of top assembled frame be equipped with by electric lift control's overhead type combination adjustment mechanism.
The center of the rotating mechanism inside the pneumatic actuator is fixedly connected with a top telescopic linkage tube, and a lifting rod at the lower end of the electric lifter is coaxially fixed with a longitudinal adjusting rod.
The central position of the upper end of the upper sphere is coaxially fixed with a first extension control tube communicated with the inner assembly tube, the central position of the upper end of the lower sphere is coaxially fixed with a second extension control tube communicated with the inner assembly tube, and the second extension control tube longitudinally penetrates through the middle isolation plate to be movably connected with the inside of the first extension control tube.
The overhead type combined adjusting mechanism comprises a first linkage limiting block fixed on the inner side surface of the overhead type telescopic linkage pipe through a bolt, a second linkage limiting block fixed on the inner side surface of the first extension control pipe through a bolt, a fourth linkage limiting block fixed on the inner side surface of the second extension control pipe through a bolt, a fifth linkage limiting block fixed on the inner side surface of the second extension control pipe through a bolt, a third linkage limiting block fixed on the outer side surface of the longitudinal adjusting rod, a sixth linkage limiting block fixed on the outer side surface of the longitudinal adjusting rod and a seventh linkage limiting block fixed on the outer side surface of the longitudinal adjusting rod.
The middle isolation plate is fixedly assembled with the upper valve body and the lower valve body through being inserted into the assembly sinking groove at the lower end of the upper valve body and the assembly sinking groove at the upper end of the lower valve body.
The first linkage limiting block is arranged on the inner side surface of the overhead telescopic linkage pipe in an annular array mode, the second linkage limiting block is arranged on the inner side surface of the first extension control pipe in an annular array mode, the fourth linkage limiting block and the fifth linkage limiting block are arranged on the inner side surface of the second extension control pipe in an annular array mode, and the third linkage limiting block, the sixth linkage limiting block and the seventh linkage limiting block are arranged on the outer side surface of the longitudinal adjusting rod in an annular array mode.
The transverse widths of the first linkage limiting block, the second linkage limiting block, the third linkage limiting block, the fourth linkage limiting block, the fifth linkage limiting block, the sixth linkage limiting block and the seventh linkage limiting block are larger than the distance between two sides.
The upper ends and the lower ends of the first linkage limiting block, the second linkage limiting block, the third linkage limiting block, the fourth linkage limiting block, the fifth linkage limiting block, the sixth linkage limiting block and the seventh linkage limiting block are provided with arc-shaped guide blocks with integrated structures.
The inner side surface of the first extension control tube is connected with the outer side surface of the second extension control tube through a built-in ball bearing.
The bottom assembling and disassembling cover plate is fixed in the assembling sinking groove at the lower end of the lower valve body through bolts, an integrated structure guide shaft protruding upwards is arranged at the center of the upper surface of the bottom assembling and disassembling cover plate, and a bottom guide blind hole matched with the guide shaft is formed in the center of the lower surface of the lower ball body.
The beneficial effects of the invention are as follows:
(1) According to the electric control lifting type multichannel reversing ball valve, an integrated structural design is adopted, a middle-arranged isolation plate is fixed between the upper valve body and the lower valve body, so that series flow during rotation of a ball body is avoided, and the sealing performance of an inner cavity of the whole ball valve is greatly improved;
(2) The inclined internal partition plate with the internal assembly pipe is fixedly connected to the communication ends of the first four channels and the second four channels, so that the opening and closing stroke of the ball valve can be effectively reduced, and the control is convenient;
(3) The overhead type combined adjusting mechanism controlled by the electric lifter is movably assembled in the top assembly frame, the connection relation among the longitudinal adjusting rod, the first extension control tube and the second extension control tube is switched and controlled through longitudinal adjustment, the internal sphere can be freely controlled according to the requirement, the operation mode is more various, and the application range is wider;
(4) The arc-shaped guide blocks at the upper end and the lower end of the linkage limiting block are matched, so that the pneumatic actuator can be quickly guided to be separated from or combined with the upper ball body and the lower ball body, the driving relationship between the pneumatic actuator and the upper ball body can be quickly controlled by the electric lifter, and the separation and combination friction force is reduced;
(5) The linkage limiting block is fixed on the inner side surface of the overhead telescopic linkage pipe, the inner side surface of the first extension control pipe, the inner side surface of the second extension control pipe and the outer side surface of the longitudinal adjusting rod in an annular array mode through bolts, so that the assembly and disassembly are convenient, the later maintenance is convenient, meanwhile, the transmission stability is improved, and the transmission friction force is reduced.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the lifting control mechanism in the present invention.
Fig. 3 is a cross-sectional view of the lift control mechanism of the present invention.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
The utility model provides a have automatically controlled lift multichannel switching-over ball valve that goes up and down, including the main valve body, electric lift 1 and pneumatic actuator 2, the main valve body includes upper valve body 3, lower valve body 4 and put division board 5 in, upper valve body 3 upper and lower end and lower valve body 4 upper and lower end all offer the loading and unloading opening of built-in assembly sinking tank 6, upper valve body 3 inside activity is equipped with the upper sphere 8 of built-in first four channel 7, lower valve body 4 inside activity is equipped with the lower sphere 10 of built-in second four channel 9, first four channel 7 and the inside internal baffle 11 of being fixedly connected with of second four channel 9 intercommunication end, the inside central point of internal baffle 11 puts inside and has inside dress piping 12, the assembly sinking tank 6 internal bolt fastening of upper valve body 3 upper end has top sealed lid 13, top assembly frame 14 that is used for installing electric lift 1 and pneumatic actuator 2 is fixed with to top assembly frame 14 inside activity, the overhead type combination adjustment mechanism of being controlled by electric lift 1.
Further, in order to match with lifting control, a top telescopic linkage tube 15 is fixedly connected to the center of a rotating mechanism inside the pneumatic actuator 2, and a longitudinal adjusting rod 16 is coaxially fixed to a lifting rod at the lower end of the electric lifter 1.
Further, in order to match with internal control, a first extension control pipe 17 communicated with the internal assembly pipe 12 is coaxially fixed at the central position of the upper end of the upper sphere 8, a second extension control pipe 18 communicated with the internal assembly pipe 12 is coaxially fixed at the central position of the upper end of the lower sphere 10, and the second extension control pipe 18 longitudinally penetrates through the inside of the middle-arranged isolation plate 5 and is movably connected with the inside of the first extension control pipe 17.
Further, in order to match the internal control, the overhead type combined adjustment mechanism includes a first linkage stopper 19 bolted to the inner side of the overhead telescopic linkage tube 15, a second linkage stopper 20 bolted to the inner side of the first extension control tube 17, a fourth linkage stopper 22 bolted to the inner side of the second extension control tube 18, a fifth linkage stopper 23 bolted to the inner side of the second extension control tube 18, a third linkage stopper 21 fixed to the outer side of the longitudinal adjustment rod 16, a sixth linkage stopper 24 fixed to the outer side of the longitudinal adjustment rod 16, and a seventh linkage stopper 25 fixed to the outer side of the longitudinal adjustment rod 16.
Further, in order to cooperate with the top assembly and the linkage control, the middle-arranged isolation plate 5 is fixedly assembled with the upper valve body 3 and the lower valve body 4 by being inserted into the assembly sinking groove at the lower end of the upper valve body 3 and the assembly sinking groove at the upper end of the lower valve body 4.
Further, in order to cooperate with the assembly locking, the first linkage limiting block 19 is arranged on the inner side surface of the overhead telescopic linkage tube 15 in an annular array, the second linkage limiting block 20 is arranged on the inner side surface of the first extension control tube 17 in an annular array, the fourth linkage limiting block 22 and the fifth linkage limiting block 23 are arranged on the inner side surface of the second extension control tube 18 in an annular array, and the third linkage limiting block 21, the sixth linkage limiting block 24 and the seventh linkage limiting block 25 are arranged on the outer side surface of the longitudinal adjustment rod 16 in an annular array.
Further, for cooperation installation and linkage limiting, the transverse widths of the first linkage limiting block 19, the second linkage limiting block 20, the third linkage limiting block 21, the fourth linkage limiting block 22, the fifth linkage limiting block 23, the sixth linkage limiting block 24 and the seventh linkage limiting block 25 are larger than the distances between the two sides.
Further, in order to reduce the telescopic guidance and the friction force, the upper ends and the lower ends of the first linkage limiting block 19, the second linkage limiting block 20, the third linkage limiting block 21, the fourth linkage limiting block 22, the fifth linkage limiting block 23, the sixth linkage limiting block 24 and the seventh linkage limiting block 25 are provided with arc-shaped guide blocks 26 with integrated structures.
Further, in order to reduce the internal friction, the inner side surface of the first extension control pipe 17 and the outer side surface of the second extension control pipe 18 are connected by a built-in ball bearing 27.
Further, in order to improve the stability of bottom assembly, a bottom assembling and disassembling cover plate 28 is fixed in the assembling sinking groove 6 at the lower end of the lower valve body 4 by bolts, an integrated structure guide shaft 29 protruding upwards is arranged at the central position of the upper surface of the bottom assembling and disassembling cover plate 28, and a bottom guide blind hole 30 matched with the guide shaft 29 is arranged at the central position of the lower surface of the lower ball body 10.
Working principle: the electric lifter 1 drives the longitudinal adjusting rod 16 to ascend, the third linkage limiting block 21 on the longitudinal adjusting rod 16 is matched with the first linkage limiting block 19, the seventh linkage limiting block 25 is matched with the fourth linkage limiting block 22, and the pneumatic actuator 2 drives the first extension control tube 17 to rotate at the moment; when the electric lifter 1 drives the longitudinal adjusting rod 16 to descend, the third linkage limiting block 21 on the longitudinal adjusting rod 16 is matched with the first linkage limiting block 19, the sixth linkage limiting block 24 is matched with the second linkage limiting block 20, the seventh linkage limiting block 25 is matched with the fourth linkage limiting block 22, and the pneumatic actuator 2 drives the first extension control tube 17 and the second extension control tube 18 to synchronously rotate; when the electric lifter 1 drives the longitudinal adjustment rod 16 to continue to descend, the third linkage limiting block 21 on the longitudinal adjustment rod 16 is matched with the first linkage limiting block 19, the sixth linkage limiting block 24 is matched with the fourth linkage limiting block 22, the seventh linkage limiting block 25 is matched with the fifth linkage limiting block 23, and at this time, the pneumatic actuator 2 drives the second extension control tube 18 to rotate. Thereby completing the ability to switch control of different spheres by lifting.
According to the electric control lifting type multichannel reversing ball valve, an integrated structural design is adopted, the middle-arranged isolation plate 5 is fixed between the upper valve body 3 and the lower valve body 4, so that series flow during rotation of a ball body is avoided, and the sealing performance of an inner cavity of the whole ball valve is greatly improved; the inclined internal partition plate 11 with the internal assembly pipe 12 is fixedly connected to the communication ends of the first four channels 7 and the second four channels 9, so that the opening and closing stroke of the ball valve can be effectively reduced, and the control is convenient; the overhead combined adjusting mechanism controlled by the electric lifter 1 is movably assembled in the top assembling frame 14, the connection relation among the longitudinal adjusting rod 16, the first extension control tube 17 and the second extension control tube 18 is switched and controlled through longitudinal adjustment, the internal sphere can be freely controlled according to the requirement, the operation mode is more various, and the application range is wider; the arc-shaped guide blocks 26 at the upper end and the lower end of the linkage limiting block are matched, so that the electric lifter 1 can be used for rapidly guiding and separating and combining, the driving relation between the pneumatic actuator 2 and the upper sphere 8 and the lower sphere 10 can be rapidly controlled, and the separating and combining friction force is reduced; the linkage limiting block is fixed on the inner side surface of the overhead telescopic linkage pipe 15, the inner side surface of the first extension control pipe 17, the inner side surface of the second extension control pipe 18 and the outer side surface of the longitudinal adjusting rod 16 in an annular array mode through bolts, so that the assembly and disassembly are convenient, the later maintenance is convenient, meanwhile, the transmission stability is improved, and the transmission friction force is reduced.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (9)
1. The utility model provides a multichannel switching-over ball valve with automatically controlled over-and-under type, includes main valve body, electric lift (1) and pneumatic actuator (2), characterized by: the main valve body comprises an upper valve body (3), a lower valve body (4) and a middle-arranged isolation plate (5), the upper end and the lower end of the upper valve body (3) and the upper end and the lower end of the lower valve body (4) are respectively provided with a loading and unloading opening internally provided with a sinking groove (6), the upper valve body (3) is internally movably provided with an upper ball body (8) internally provided with a first four-way (7), the lower valve body (4) is internally movably provided with a lower ball body (10) internally provided with a second four-way (9), the communication ends of the first four-way (7) and the second four-way (9) are connected with an inclined inner partition plate (11), the inner center position of the inclined inner partition plate (11) is provided with an inner assembly pipe (12), the inner bolt of the sinking groove (6) at the upper end of the upper valve body (3) is fixedly provided with a top sealing cover (13), the upper end bolt of the top sealing cover (13) is fixedly provided with a top assembly frame (14) for installing an electric lifter (1) and a pneumatic actuator (2), the top assembly frame (14) is internally provided with a movable lifting mechanism (1) and the pneumatic actuator (2) is fixedly connected with a central control device (15), the lifting rod at the lower end of the electric lifter (1) is coaxially fixed with a longitudinal adjusting rod (16).
2. The multi-channel reversing ball valve with electric control lifting type according to claim 1, wherein the reversing ball valve is characterized in that: the upper end central position of the upper ball body (8) is coaxially fixed with a first extension control pipe (17) communicated with the inner assembly pipe (12), the upper end central position of the lower ball body (10) is coaxially fixed with a second extension control pipe (18) communicated with the inner assembly pipe (12), and the second extension control pipe (18) longitudinally penetrates through the middle isolation plate (5) and is movably connected with the inside of the first extension control pipe (17).
3. The multi-channel reversing ball valve with electric control lifting type according to claim 2, wherein the reversing ball valve is characterized in that: the overhead type combined adjusting mechanism comprises a first linkage limiting block (19) fixed on the inner side surface of an overhead telescopic linkage tube (15) through a bolt, a second linkage limiting block (20) fixed on the inner side surface of a first extension control tube (17) through a bolt, a fourth linkage limiting block (22) fixed on the inner side surface of a second extension control tube (18) through a bolt, a fifth linkage limiting block (23) fixed on the inner side surface of the second extension control tube (18) through a bolt, a third linkage limiting block (21) fixed on the outer side surface of a longitudinal adjusting rod (16), a sixth linkage limiting block (24) fixed on the outer side surface of the longitudinal adjusting rod (16) and a seventh linkage limiting block (25) fixed on the outer side surface of the longitudinal adjusting rod (16).
4. The multi-channel reversing ball valve with electric control lifting type according to claim 1, wherein the reversing ball valve is characterized in that: the middle-arranged isolation plate (5) is fixedly assembled with the upper valve body (3) and the lower valve body (4) through being inserted into an assembly sinking groove at the lower end of the upper valve body (3) and an assembly sinking groove at the upper end of the lower valve body (4).
5. A multi-channel reversing ball valve with an electrically controlled lifting mechanism according to claim 3, characterized in that: the first linkage limiting block (19) is arranged on the inner side surface of the overhead telescopic linkage tube (15) in an annular array mode, the second linkage limiting block (20) is arranged on the inner side surface of the first extension control tube (17) in an annular array mode, the fourth linkage limiting block (22) and the fifth linkage limiting block (23) are arranged on the inner side surface of the second extension control tube (18) in an annular array mode, and the third linkage limiting block (21), the sixth linkage limiting block (24) and the seventh linkage limiting block (25) are arranged on the outer side surface of the longitudinal adjusting rod (16) in an annular array mode.
6. A multi-channel reversing ball valve with an electrically controlled lifting mechanism according to claim 3, characterized in that: the transverse widths of the first linkage limiting block (19), the second linkage limiting block (20), the third linkage limiting block (21), the fourth linkage limiting block (22), the fifth linkage limiting block (23), the sixth linkage limiting block (24) and the seventh linkage limiting block (25) are larger than the distance between two sides.
7. A multi-channel reversing ball valve with an electrically controlled lifting mechanism according to claim 3, characterized in that: the upper end and the lower end of the first linkage limiting block (19), the second linkage limiting block (20), the third linkage limiting block (21), the fourth linkage limiting block (22), the fifth linkage limiting block (23), the sixth linkage limiting block (24) and the seventh linkage limiting block (25) are provided with arc-shaped guide blocks (26) with integrated structures.
8. The multi-channel reversing ball valve with electric control lifting type according to claim 2, wherein the reversing ball valve is characterized in that: the inner side surface of the first extension control tube (17) is connected with the outer side surface of the second extension control tube (18) through a built-in ball bearing (27).
9. The multi-channel reversing ball valve with electric control lifting type according to claim 2, wherein the reversing ball valve is characterized in that: the assembly sinking groove (6) of lower valve body (4) lower extreme is inside to be bolted connection has bottom loading and unloading apron (28), bottom loading and unloading apron (28) upper surface central point put have protruding integral structure guiding axle (29) upwards, lower spheroid (10) lower surface central point put and offered bottom direction blind hole (30) with guiding axle (29) matched with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110869333.8A CN113531165B (en) | 2021-07-30 | 2021-07-30 | Multi-channel reversing ball valve with electric control lifting type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110869333.8A CN113531165B (en) | 2021-07-30 | 2021-07-30 | Multi-channel reversing ball valve with electric control lifting type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113531165A CN113531165A (en) | 2021-10-22 |
| CN113531165B true CN113531165B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110869333.8A Active CN113531165B (en) | 2021-07-30 | 2021-07-30 | Multi-channel reversing ball valve with electric control lifting type |
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| CN (1) | CN113531165B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197037B (en) * | 2014-09-03 | 2016-08-24 | 侯玥 | A kind of combination type multi-station ball-valve |
| CA2980682C (en) * | 2015-04-09 | 2024-06-11 | Giacomini S.P.A. | Multiway valve with bypass circuit |
| CN106246957B (en) * | 2016-08-02 | 2019-04-16 | 合肥通用机械研究院有限公司 | A kind of series connection four way ball valve group |
| CN106286903B (en) * | 2016-10-10 | 2018-12-28 | 国家海洋局天津海水淡化与综合利用研究所 | Integral type multi-pass ball valve |
| CN108506527A (en) * | 2018-03-27 | 2018-09-07 | 温州大学 | One kind is two-way to use machinery valve |
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2021
- 2021-07-30 CN CN202110869333.8A patent/CN113531165B/en active Active
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