CN113932045A - Three-way ball valve - Google Patents
Three-way ball valve Download PDFInfo
- Publication number
- CN113932045A CN113932045A CN202111058902.7A CN202111058902A CN113932045A CN 113932045 A CN113932045 A CN 113932045A CN 202111058902 A CN202111058902 A CN 202111058902A CN 113932045 A CN113932045 A CN 113932045A
- Authority
- CN
- China
- Prior art keywords
- core
- rotating
- connecting shell
- ball valve
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 239000012530 fluid Substances 0.000 abstract description 30
- 239000011148 porous material Substances 0.000 abstract 6
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
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
- F16K11/22—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 with an actuating member for each valve, e.g. interconnected to form multiple-way 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
- 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
- F16K11/24—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 with an electromagnetically-operated valve, e.g. for washing machines
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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
-
- 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
- F16K5/12—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention relates to the technical field of ball valve equipment, in particular to a three-way ball valve; three-way ball valve is including connecting shell and case, the case sets up in the inboard of connecting the shell, the case includes the slip post, drive assembly and rotation core, it sets up in the inside of connecting the shell to rotate the core, the slip post sets up in the inboard of rotating the core, drive assembly sets up in the below of rotating the core, the slip post has three intercommunicating pore and spacing, three intercommunicating pore all sets up in the side of slip post, three intercommunicating pore communicates each other, spacing sets up between three intercommunicating pore, when needing to end fluid, drive assembly pulling slip post, the intercommunicating pore misplaces with rotating the core, make fluid can't pass through the rotation core from the intercommunicating pore, thereby block up and rotate the core, end fluid, the problem that current three-way ball valve can't carry out ending to the fluid in all connecting tube ways has been solved.
Description
Technical Field
The invention relates to the technical field of ball valve equipment, in particular to a three-way ball valve.
Background
The three-way valve can control the switching of fluid in different pipelines by adjusting the position of the valve core, and is widely used as a key basic part in modern intelligent equipment due to the characteristic that the three-way valve can freely control the flow rate and the flow direction of the fluid;
most of the existing three-way ball valves can only change the flow direction and the flow quantity of fluid, the fluid in all connecting pipelines cannot be cut off, when the fluid in all the pipelines needs to be cut off, the two-way valves are often required to be connected for control, and the volume of equipment is increased.
Disclosure of Invention
The invention aims to provide a three-way ball valve, which solves the problem that the existing three-way ball valve cannot cut off fluid in all connecting pipelines.
In order to achieve the above purpose, the present invention provides a three-way ball valve, which includes a connecting shell and a valve core, wherein the valve core is arranged inside the connecting shell and rotatably connected with the connecting shell, the valve core includes a sliding column, a driving assembly and a rotating core, the rotating core is arranged inside the connecting shell and rotatably connected with the connecting shell, the sliding column is arranged inside the rotating core and slidably connected with the rotating core, the driving assembly is arranged below the rotating core and fixedly connected with the rotating core, and the driving assembly penetrates through the bottom surface of the rotator and is fixedly connected with the sliding column;
the sliding column is provided with three communicating holes and a limiting strip, the three communicating holes are formed in the side face of the sliding column and are communicated with each other, the three communicating holes are matched with the rotating core, the limiting strip is arranged between the three communicating holes, and the limiting strip is connected with the rotating core in a sliding mode.
When the fluid is cut off, the driving assembly pulls the sliding column to enable the communication hole to be staggered with the rotating core, so that the fluid cannot pass through the communication hole and pass through the rotating core.
The rotating core comprises a ball core and a rotating handle, the ball core is arranged on the inner side of the connecting shell and is rotatably connected with the connecting shell, and the rotating handle is arranged above the connecting shell and penetrates through the connecting shell and is fixedly connected with the ball core.
And rotating the rotating handle to control the flow direction of the fluid through the ball core.
The ball core is provided with three runners and sliding grooves, the three runners correspond to the three communicating holes one to one, the three runners are matched with the corresponding communicating holes, the sliding grooves are formed in intersection points of the three runners and are communicated with the three runners respectively, the sliding grooves penetrate through the bottom surface of the ball core, and the sliding grooves are in sliding connection with the limiting strips.
The driving assembly pulls the sliding column to slide on the inner side of the sliding groove, so that the flow channel and the communication hole are staggered.
Wherein, drive assembly includes electro-magnet, spring and iron plate, the iron plate set up in the below of slip post, and with slip post fixed connection, the spring housing is in the outside of iron plate, just the spring with slip post fixed connection, the electro-magnet set up in the below of spring, just the electro-magnet rotates core fixed connection.
When the fluid is cut off, the electromagnet is electrified to adsorb the iron block, and the sliding column is pulled through the iron block.
The connecting shell comprises a three-way pipe and a bottom plate, the three-way pipe is sleeved on the outer side of the rotating core and is in rotary connection with the rotating core, and the bottom plate is arranged below the three-way pipe and is detachably connected with the three-way pipe.
When the ball core breaks down, the bottom plate can be detached, so that the ball core can be overhauled.
The bottom plate is provided with a rotary groove and a sealing gasket, the rotary groove is formed in the top of the bottom plate and is rotationally connected with the rotating core, the sealing gasket is arranged on the outer side of the rotary groove and is concentrically arranged with the axial lead of the rotary groove, and the sealing gasket is matched with the three-way pipe.
And when the rotating handle is pulled, the ball core rotates by taking the axial lead of the rotating groove as a rotating shaft, so that the flow direction of the fluid is changed.
According to the three-way ball valve, when fluid needs to be stopped, the driving assembly pulls the sliding column, the communication hole and the rotating core are staggered, so that the fluid cannot pass through the rotating core from the communication hole, the rotating core is blocked, the fluid is stopped, and the problem that the existing three-way ball valve cannot stop the fluid in all connecting pipelines is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic axial structure diagram of a three-way ball valve provided by the invention.
Fig. 2 is a schematic front view of a three-way ball valve provided by the invention.
Fig. 3 is a schematic top sectional view of a three-way ball valve according to the present invention.
Fig. 4 is a schematic structural view of a bottom cross section of a three-way ball valve provided by the invention.
Fig. 5 is a schematic side sectional view of a three-way ball valve according to the present invention.
10-valve core, 11-sliding column, 111-communicating hole, 112-limiting strip, 12-driving component, 121-electromagnet, 122-spring, 123-iron block, 13-rotating core, 131-ball core, 1311-ball frame, 13111-long hole, 13112-groove, 13113-round groove, 1312-rotating column, 1313-first sliding plug, 1314-second sliding plug, 1315-shrinking frame, 13151-connecting block, 13152-rubber ring, 13153-pull rod, 13154-inclined groove, 1316-flow passage, 1317-sliding groove, 1318-communicating hole, 132-rotating handle, 20-connecting shell, 21-three-way pipe, 22-bottom plate, 221-rotating groove and 222-sealing gasket.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1 to 5, the present invention provides a three-way ball valve, which includes a connecting shell 20 and a valve core 10, wherein the valve core 10 is disposed inside the connecting shell 20 and rotatably connected to the connecting shell 20, the valve core 10 includes a sliding column 11, a driving assembly 12 and a rotating core 13, the rotating core 13 is disposed inside the connecting shell 20 and rotatably connected to the connecting shell 20, the sliding column 11 is disposed inside the rotating core 13 and slidably connected to the rotating core 13, and the driving assembly 12 is disposed below the sliding column 11 and fixedly connected to the sliding column 11;
the sliding column 11 is provided with three communicating holes 111 and a limiting strip 112, the three communicating holes 111 are all arranged on the side surface of the sliding column 11, the three communicating holes 111 are communicated with each other, the three communicating holes 111 are all matched with the rotating core 13, the limiting strip 112 is arranged among the three communicating holes 111, and the limiting strip 112 is connected with the rotating core 13 in a sliding mode.
In this embodiment, when the fluid normally flows, the fluid passes through the ball core 131 through the communication hole 111, the valve core 10 is rotated, the sliding column 11 and the rotating core 13 rotate simultaneously through the limiting strip 112, the fluid is guided to be branched or merged, when the fluid is cut off, the driving assembly 12 pulls the sliding column 11 to slide downwards, the communication hole 111 and the rotating core 13 are dislocated, the fluid cannot pass through the rotating core 13 through the communication hole 111, and the fluid stops flowing, so that the problem that the fluid in all connecting pipelines cannot be cut off by the conventional three-way ball valve is solved.
Further, the rotating core 13 includes a ball core 131 and a rotating handle 132, the ball core 131 is disposed inside the connecting shell 20 and rotatably connected to the connecting shell 20, and the rotating handle 132 is disposed above the connecting shell 20 and fixedly connected to the ball core 131 through the connecting shell 20;
the ball core 131 is provided with three runners 1316 and a sliding groove 1317, the three runners 1316 and the three communicating holes 111 are in one-to-one correspondence, the three runners 1316 are matched with the corresponding communicating holes 111, the sliding groove 1317 is arranged at the intersection of the three runners 1316 and is respectively communicated with the three runners 1316, the sliding groove 1317 penetrates through the bottom surface of the ball core 131, and the sliding groove 1317 is in sliding connection with the limiting strip 112.
In this embodiment, when the fluid direction is controlled, the turning handle 132 is pulled to turn the ball core 131, the sliding groove is engaged with the limiting bar 112 to drive the sliding column 11 and the ball core 131 to rotate synchronously, and the communication hole 111 is communicated with the flow channel 1316, so as to control the fluid flow direction.
Further, the core 131 includes a ball frame 1311, a rotation column 1312, a first sliding plug 1313, three second sliding plugs 1314 having flow holes 1318, and a contraction shelf 1315, the ball frame 1311 is disposed at the inner side of the coupling housing 20, and is rotatably coupled to the coupling housing 20, the rotating post 1312 is provided on the top of the ball frame 1311, and is rotatably connected with the ball frame 1311, the rotation column 1312 is fixedly connected with the rotation handle 132, the shrink frame 1315 is arranged on the peripheral side of the rotation column 1312, and engaged with the rotation column 1312, the first sliding plug 1313 and the three second sliding plugs 1314 are disposed at the side of the ball frame 1311, and are all fixedly connected with the adjacent shrinkage frame 1315, three sliding plugs are in one-to-one correspondence with the three flow passages 1316, and all three of the second sliding plugs 1314 are disposed at a side close to the corresponding flow channel 1316;
the spherical frame 1311 further has a groove 13112, a long hole 13111 and a circular groove 13113, the circular groove 13113 is on the side of the spherical frame 1311, the groove 13112 is arranged on the top of the spherical frame 1311, the long hole 13111 is arranged on the top of the circular groove 13113, the long hole 13111 is respectively communicated with the circular groove 13113 and the groove 13112, and the long hole 13111 is connected with the shrinkage frame 1315 in a sliding manner;
the retraction rack 1315 includes a retraction rack 1315 having a chute 13154, a rubber ring 13152, and a pull rod 13153, the retraction rack 1315 is disposed inside the groove 13112 and slidably connected to the groove 13112, the chute 13154 is disposed on the top of the retraction rack 1315, the rubber ring 13152 is disposed inside the circular groove 13113 and fixedly connected to the circular groove 13113, the rubber ring 13152 is fixedly connected to the adjacent first sliding plug 1313 or second sliding plug 1314, the pull rod 13153 is disposed on the side of the rubber ring 13152 close to the retraction rack 1315 and fixedly connected to the rubber ring 13152, the pull rod 13153 is slidably connected to the elongated hole 13111, and the pull rod 13153 passes through the elongated hole 11 and is engaged with the chute 13154.
In this embodiment, the rotation handle 132 is pulled to drive the rotation post 1312 to rotate, the rotation post 1312 drives the retraction rack 1315 to slide on the inner side of the groove 13112, the retraction rack 1315 pulls the pull rod 13153 to slide and retract on the inner side of the long hole 13111 through the inclined groove 13154, the rubber ring 13152 is stretched, the adjacent first sliding plug 1313 and the second sliding plug 1314 are retracted to the inner side of the spherical frame 1311, the contact area between the spherical frame 1311 and the connection shell 20 is reduced, and the loss of the ball core 131 in use is reduced, when the retraction rack 1315 contacts with the side wall of the groove 13112, the retraction rack 1315 stops sliding, the rotation post 1312 is locked, the rotation handle 132 is pulled continuously, the spherical frame 1311 is rotated, fluid passes through the second sliding plug via the flow hole 1318, enters the flow channel 1316, and after passing through the communication hole 111, and out of the other flow passages 1316, thereby controlling the direction of fluid flow.
Further, the driving assembly 12 includes an electromagnet 121, a spring 122 and an iron block 123, the iron block 123 is disposed below the sliding column 11 and is fixedly connected with the sliding column 11, the spring 122 is sleeved outside the iron block 123, the spring 122 is fixedly connected with the sliding column 11, the electromagnet 121 is disposed below the spring 122, and the electromagnet 121 is fixedly connected with the rotating core 13;
the connecting shell 20 comprises a three-way pipe 21 and a bottom plate 22, the three-way pipe 21 is sleeved outside the rotating core 13 and is rotatably connected with the rotating core 13, and the bottom plate 22 is arranged below the three-way pipe 21 and is detachably connected with the three-way pipe 21;
the bottom plate 22 is provided with a rotating groove 221 and a sealing gasket 222, the rotating groove 221 is arranged at the top of the bottom plate 22, the rotating groove 221 is rotatably connected with the rotating core 13, the sealing gasket 222 is arranged at the outer side of the rotating groove 221, the sealing gasket 222 is concentrically arranged with the axial line of the rotating groove 221, and the sealing gasket 222 is matched with the three-way pipe 21.
In this embodiment, the rotation handle 132 is pulled, the ball frame 1311 rotates about the axis of the rotation groove 221, and when the electromagnet 121 or the ball 131 breaks down, the bottom plate 22 can be detached from the bottom of the tee 21 to repair the broken component, and the gasket 222 is used to improve the sealing property between the tee 21 and the bottom plate 22.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A three-way ball valve is characterized in that,
the three-way ball valve comprises a connecting shell (20) and a valve core (10), wherein the valve core (10) is arranged on the inner side of the connecting shell (20) and is rotationally connected with the connecting shell (20), the valve core (10) comprises a sliding column (11), a driving assembly (12) and a rotating core (13), the rotating core (13) is arranged inside the connecting shell (20) and is rotationally connected with the connecting shell (20), the sliding column (11) is arranged on the inner side of the rotating core (13) and is slidably connected with the rotating core (13), and the driving assembly (12) is arranged below the sliding column (11) and is fixedly connected with the sliding column (11);
the sliding column (11) is provided with three communicating holes (111) and a limiting strip (112), the three communicating holes (111) are arranged on the side face of the sliding column (11), the three communicating holes (111) are communicated with each other, the three communicating holes (111) are matched with the rotating core (13), the limiting strip (112) is arranged between the three communicating holes (111), and the limiting strip (112) is connected with the rotating core (13) in a sliding mode.
2. The three-way ball valve of claim 1,
rotate core (13) including ball core (131) and rotation handle (132), ball core (131) set up in the inboard of connecting shell (20), and with connecting shell (20) swivelling joint, rotation handle (132) set up in the top of connecting shell (20), and run through connecting shell (20) with ball core (131) fixed connection.
3. The three-way ball valve of claim 2,
the ball core (131) is provided with three flow channels (1316) and sliding grooves (1317), the three flow channels (1316) correspond to the three communicating holes (111) one by one, the three flow channels (1316) are matched with the corresponding communicating holes (111), the sliding grooves (1317) are arranged at the intersection points of the three flow channels (1316) and are respectively communicated with the three flow channels (1316), the sliding grooves (1317) penetrate through the bottom surface of the ball core (131), and the sliding grooves (1317) are in sliding connection with the limiting strips (112).
4. A three-way ball valve according to claim 3,
drive assembly (12) include electro-magnet (121), spring (122) and iron plate (123), iron plate (123) set up in the below of slip post (11), and with slip post (11) fixed connection, spring (122) cover is in the outside of iron plate (123), just spring (122) with slip post (11) fixed connection, electro-magnet (121) set up in the below of spring (122), just electro-magnet (121) rotate core (13) fixed connection.
5. The three-way ball valve of claim 4,
the connecting shell (20) comprises a three-way pipe (21) and a bottom plate (22), the three-way pipe (21) is sleeved on the outer side of the rotating core (13) and is rotatably connected with the rotating core (13), and the bottom plate (22) is arranged below the three-way pipe (21) and is detachably connected with the three-way pipe (21).
6. A three-way ball valve according to claim 5,
the bottom plate (22) is provided with a rotating groove (221) and a sealing gasket (222), the rotating groove (221) is formed in the top of the bottom plate (22), the rotating groove (221) is rotatably connected with the rotating core (13), the sealing gasket (222) is arranged on the outer side of the rotating groove (221), the sealing gasket (222) and the rotating groove (221) are concentrically arranged, and the sealing gasket (222) is matched with the three-way pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111058902.7A CN113932045B (en) | 2021-09-10 | 2021-09-10 | Three-way ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111058902.7A CN113932045B (en) | 2021-09-10 | 2021-09-10 | Three-way ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113932045A true CN113932045A (en) | 2022-01-14 |
| CN113932045B CN113932045B (en) | 2023-10-27 |
Family
ID=79275517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111058902.7A Active CN113932045B (en) | 2021-09-10 | 2021-09-10 | Three-way ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113932045B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009041600A (en) * | 2007-08-07 | 2009-02-26 | Maezawa Kyuso Industries Co Ltd | Check valve unit with performance inspecting mechanism |
| CN202432025U (en) * | 2012-01-10 | 2012-09-12 | 杭州佳能阀门有限公司 | High-pressure three-way ball valve |
| CN208967094U (en) * | 2018-11-07 | 2019-06-11 | 玉环宏华阀门有限公司 | A kind of flow control ball valve |
| CN210770360U (en) * | 2019-06-25 | 2020-06-16 | 苏州市相城区通力机械有限公司 | Double-sealing type valve |
| CN213017874U (en) * | 2020-06-24 | 2021-04-20 | 中国汽车工业工程有限公司 | Three-way ball valve with complete closing function |
-
2021
- 2021-09-10 CN CN202111058902.7A patent/CN113932045B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009041600A (en) * | 2007-08-07 | 2009-02-26 | Maezawa Kyuso Industries Co Ltd | Check valve unit with performance inspecting mechanism |
| CN202432025U (en) * | 2012-01-10 | 2012-09-12 | 杭州佳能阀门有限公司 | High-pressure three-way ball valve |
| CN208967094U (en) * | 2018-11-07 | 2019-06-11 | 玉环宏华阀门有限公司 | A kind of flow control ball valve |
| CN210770360U (en) * | 2019-06-25 | 2020-06-16 | 苏州市相城区通力机械有限公司 | Double-sealing type valve |
| CN213017874U (en) * | 2020-06-24 | 2021-04-20 | 中国汽车工业工程有限公司 | Three-way ball valve with complete closing function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113932045B (en) | 2023-10-27 |
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