CN209262297U - A kind of screw thread ball valve - Google Patents
A kind of screw thread ball valve Download PDFInfo
- Publication number
- CN209262297U CN209262297U CN201821716047.8U CN201821716047U CN209262297U CN 209262297 U CN209262297 U CN 209262297U CN 201821716047 U CN201821716047 U CN 201821716047U CN 209262297 U CN209262297 U CN 209262297U
- Authority
- CN
- China
- Prior art keywords
- lateral surface
- ball valve
- screw thread
- valve body
- socketed
- 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- Withdrawn - After Issue
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000013016 damping Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 11
- 238000002627 tracheal intubation Methods 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Taps Or Cocks (AREA)
- Valve Housings (AREA)
Abstract
The utility model discloses a kind of screw thread ball valves, including valve body, this screw thread ball valve, it is compact-sized, it is easy for installation, maintenance is simple, can with the cutting of liquid in the progress pipeline of highly effective and safe be connected to, the position that first arc fixture block combines the setting of the second arc fixture block to facilitate installing pipe is fixed, the setting of installing pipe facilitates the connection of external pipe, the installation that the setting of mounting hole combination mounting plate facilitates the utility model is fixed, the position that the setting of positioning column facilitates pedestal is fixed, pedestal can be pressed on to the upper surface of cylindrical collar by the second nut, damping effectively can be carried out to pedestal by damping spring, fixation can be supported to valve body by support rib, installing pipe can be pressed on to the lateral surface of valve body by the first screw rod, the setting of cylindricality intubation facilitates the quick connection of installing pipe and connecting tube, second The leakproofness of installing pipe Yu connecting tube interface can be effectively ensured in the setting of sealing ring.
Description
Technical field
The utility model relates to valve technology field, specially a kind of screw thread ball valve.
Background technique
Ball valve is mainly used to make the flow direction for cutting off, distributing and changing medium in pipeline, it is only needed with rotation 90
The operation of degree and the rotating torque of very little can close tightly.Ball valve optimum switchs, stop valve uses.It is ball valve anti-wear, close
Sealing property is good, long service life, is widely used to each department such as petroleum, chemical industry, power generation, papermaking, atomic energy, aviation, rocket,
And in people's daily life.Ball valve has further the advantage that fluid resistance is small, and the ball valve of full-bore is substantially without flow resistance；Knot
Structure is simple, small in size, light-weight；It is close reliable, it there are two sealing surface, and the seal face materials of ball valve be widely used it is various
Plastics, good airproof performance are able to achieve and are fully sealed；Easy to operate, opening and closing is rapid, as long as being rotated by 90 ° from standard-sized sheet to full pass.Ball at present
Valve is mostly directly to be connected with pipeline during installation, and ball valve bottom lacks support device, since ball valve is mostly than heavier, works as pipeline
When shaking, the interface of ball valve and pipeline, which is easy to happen, to fall off, while liquid passes through in Shi Huiyu ball valve out of ball valve
Sideways collisions generate vibration so as to cause ball valve, and existing ball valve can not effectively carry out damping after mounting.
Utility model content
The technical problems to be solved in the utility model is to overcome existing defect, provides a kind of screw thread ball valve, can be very square
Just damping processing is carried out to ball valve, bring convenience to the safe handling of ball valve, and can effectively carry out to ball valve body
Support, further improves the service efficiency of the utility model, can effectively solve the problems in background technique.
To achieve the above object, the utility model provides the following technical solutions: a kind of screw thread ball valve, including valve body, described
Left and right ends are set there are two the connecting tube being symmetrical set in the middle part of the lateral surface of valve body, and the medial surface of connecting tube is socketed with cylindricality
The medial surface of intubation, connecting tube is equipped with the second sealing ring close to one end that cylindricality is intubated, and the left side of cylindricality intubation is equipped with installation
Pipe, the medial surface of installing pipe are equipped with connection screw thread, and upper end is socketed with the second arc fixture block, installing pipe in the middle part of the lateral surface of installing pipe
Lateral surface in the middle part of lower end be socketed with the first arc fixture block, the lateral surface right end of installing pipe is equipped with first annular positioning plate, first
The lateral surface of circular orientation plate is uniformly distributed on peripheries with four locating pieces, and locating piece passes through the location hole set that Middle face on the outside is arranged
It is connected to the first screw rod, is equipped with ball valve in the middle part of the medial surface of valve body, the medial surface left and right ends of valve body set that there are two left and right pair
Claim the first sealing ring of setting, the lateral surface upper end of ball valve is equipped with shaft, and the first arc fixture block is by being arranged on the outside
The support rib of face lower end is fixedly connected with pedestal, and pedestal is socketed with positioning column by being disposed thereon the location hole on surface, fixed
The quantity of position column is four, and four positioning columns are evenly distributed on the upper surface surrounding of pedestal, and the lateral surface of positioning column is close to pedestal
The threaded one end of upper surface is connected with the second nut, and the lateral surface of positioning column is socketed with cylindrical sleeve close to one end of base lower surface
Ring, is equipped with the second circular orientation plate in the middle part of the lateral surface of positioning column, under the upper surface and cylindrical collar of the second circular orientation plate
Damping spring is equipped between surface, the lower end surface of positioning column is connected with support plate.
As a kind of optimal technical scheme of the utility model, the lateral surface upper end front and rear sides of the first arc fixture block
If there are two symmetrically arranged first mounting plate in front and back, the lateral surface lower end front and rear sides of the second arc fixture block set that there are two front and backs
Symmetrically arranged second mounting plate, the second mounting plate are connected by positioning bolt with the first mounting plate.
As a kind of optimal technical scheme of the utility model, the lateral surface of first screw rod is close to locating piece left side
Threaded one end be connected with cylindrical collar, threaded one end of the lateral surface of the first screw rod close to locating piece right side is connected with second
Nut.
As a kind of optimal technical scheme of the utility model, third company is socketed in the middle part of the lateral surface of first screw rod
Fishplate bar, the lateral surface of third connecting plate are mutually welded with the lateral surface of valve body.
As a kind of optimal technical scheme of the utility model, positioning is equipped in the middle part of the lateral surface lower end of the ball valve
Bar, the lateral surface lower end of locating rod are rotatablely connected with the bearing that valve body medial surface bottom is arranged in.
As a kind of optimal technical scheme of the utility model, the lateral surface upper end of the valve body is equipped with rectangular seal block,
The medial surface of rectangular seal block is equipped with the rubber seal with the lateral surface of shaft against setting.
As a kind of optimal technical scheme of the utility model, it is socketed with abutment sleeve in the middle part of the lateral surface of the shaft,
The lateral surface of abutment sleeve is connected by the second screw rod with the upper surface of rectangular seal block.
As a kind of optimal technical scheme of the utility model, the lateral surface upper end of the shaft is socketed with lantern ring, lantern ring
Spoke by the way that Middle face on the outside is arranged is fixedly connected with ring-shaped handle.
As a kind of optimal technical scheme of the utility model, the one end of the lateral surface of the shaft close to lantern ring upper surface
It is threaded with the 5th nut, threaded one end of the lateral surface of shaft close to lantern ring lower surface is connected with the 6th nut.
As a kind of optimal technical scheme of the utility model, the lateral surface of the support plate is uniformly distributed on peripheries with four installations
The upper surface middle part of plate, mounting plate is equipped with mounting hole.
Compared with prior art, this screw thread ball valve has below beneficial to benefit:
1, this screw thread ball valve, compact-sized, easy for installation, maintenance is simple, can be with liquid in the carry out pipeline of highly effective and safe
Cutting be connected to, the first arc fixture block combines the setting of the second arc fixture block to facilitate the position of installing pipe and fixes, installing pipe
Setting facilitate the connection of external pipe, the installation that the setting of mounting hole combination mounting plate facilitates the utility model is fixed.
2, the position that the setting of positioning column facilitates pedestal is fixed, and pedestal can be pressed on cylindrical sleeve by the second nut
The upper surface of ring effectively can carry out damping to pedestal by damping spring, can be supported to valve body by support rib
It is fixed, installing pipe can be pressed on to the lateral surface of valve body by the first screw rod.
3, the setting of cylindricality intubation facilitates the quick connection of installing pipe and connecting tube, and the setting of the second sealing ring can have
Effect guarantees the leakproofness of installing pipe and connecting tube interface, can effectively be consolidated to the position of ball valve by locating rod
Fixed, the leakproofness after ball valve is closed can be effectively ensured in the setting of the first sealing ring.
4, the setting of shaft facilitates the open and close of ball valve, can easily be rotated by ring-shaped handle
Axis, the position that abutment sleeve combines the setting of the second screw rod to facilitate shaft are fixed, and the setting of rectangular seal block can be protected effectively
Demonstrate,prove the medial surface of ball valve and the leakproofness of shaft lateral surface junction.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model section view；
Fig. 3 is the utility model left view.
In figure: 1 first arc fixture block, 2 support ribs, 3 support plates, 4 mounting holes, 5 mounting plates, 6 positioning columns, 7 pedestals, 8
It is valve body, 9 ring-shaped handles, 10 shafts, 11 first screw rods, 12 second arc fixture blocks, 13 installing pipes, 14 ball valves, 15 first close
Seal, 16 second sealing rings, 17 cylindricalitys intubation, 18 locating rods, 19 abutment sleeves, 20 first annular positioning plates, 21 locating pieces, 22
Cylindrical collar, 23 second circular orientation plates, 24 damping springs, 25 second nuts, 26 lantern rings, 27 second screw rods, 28 connecting tubes, 29
Rectangular seal block.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of screw thread ball valve, including valve body 8, valve body 8
Left and right ends are set there are two the connecting tube 28 being symmetrical set in the middle part of lateral surface, and the medial surface of connecting tube 28 is socketed with cylindricality and inserts
The medial surface of pipe 17, connecting tube 28 is equipped with the second sealing ring 16, the left side of cylindricality intubation 17 close to one end of cylindricality intubation 17
Equipped with installing pipe 13, the setting of installing pipe 13 facilitates the connection of external pipe, and the medial surface of installing pipe 13 is equipped with connection screw thread,
Upper end is socketed with the second arc fixture block 12 in the middle part of the lateral surface of installing pipe 13, and lower end is socketed with the in the middle part of the lateral surface of installing pipe 13
One arc fixture block 1, the position that the first arc fixture block 1 combines the setting of the second arc fixture block 12 to facilitate installing pipe 13 are fixed, the
The lateral surface upper end front and rear sides of one arc fixture block 1 are set there are two symmetrically arranged first mounting plate in front and back, the second arc fixture block
12 lateral surface lower end front and rear sides are set there are two symmetrically arranged second mounting plate in front and back, and the second mounting plate passes through positioning bolt
It is connected with the first mounting plate, threaded one end of the lateral surface of the first screw rod 11 close to 21 left side of locating piece is connected with cylindrical sleeve
Ring, threaded one end of the lateral surface of the first screw rod 11 close to 21 right side of locating piece are connected with the second nut, the first screw rod 11
It is socketed with third connecting plate in the middle part of lateral surface, the lateral surface of third connecting plate is mutually welded with the lateral surface of valve body 8, installing pipe 13
Lateral surface right end is equipped with first annular positioning plate 20, and the lateral surface of first annular positioning plate 20 is uniformly distributed on peripheries with four locating pieces
21, locating piece 21 is socketed with the first screw rod 11 by the way that the location hole of Middle face on the outside is arranged, and sets in the middle part of the medial surface of valve body 8
Have a ball valve 14, be equipped with locating rod 18 in the middle part of the lateral surface lower end of ball valve 14, the lateral surface lower end of locating rod 18 with set
The bearing rotation connection in 8 medial surface bottom of valve body is set, the lateral surface upper end of valve body 8 is equipped with rectangular seal block 29, rectangular seal
The medial surface of block 29 is equipped with the rubber seal with the lateral surface of shaft 10 against setting, and the medial surface left and right ends of valve body 8 are set
There are two the first sealing ring 15 being symmetrical set, the closing of ball valve 14 can be effectively ensured in the setting of the first sealing ring 15
Leakproofness afterwards, the lateral surface upper end of ball valve 14 are equipped with shaft 10, are socketed with abutment sleeve in the middle part of the lateral surface of shaft 10
19, the lateral surface of abutment sleeve 19 is connected by the second screw rod 27 with the upper surface of rectangular seal block 29, the lateral surface of shaft 10
Upper end is socketed with lantern ring 26, and lantern ring 26 is fixedly connected with ring-shaped handle 9, shaft 10 by the way that the spoke of Middle face on the outside is arranged
Threaded one end of the lateral surface close to 26 upper surface of lantern ring be connected with the 5th nut, the lateral surface of shaft 10 is close to 26 following table of lantern ring
The threaded one end in face is connected with the 6th nut, and the setting of shaft 10 facilitates the open and close of ball valve 14, passes through annular
Handle 9 can easily rotating shaft 10, the first arc fixture block 1 be fixed by the support rib 2 that face lower end on the outside is arranged
It is connected with pedestal 7, pedestal 7 is socketed with positioning column 6 by being disposed thereon the location hole on surface, and the quantity of positioning column 6 is four,
Four positioning columns 6 are evenly distributed on the upper surface surrounding of pedestal 7, one end spiral shell of the lateral surface of positioning column 6 close to 7 upper surface of pedestal
Line is connected with the second nut 25, and the lateral surface of positioning column 6 is socketed with cylindrical collar 22 close to one end of 7 lower surface of pedestal, passes through
Pedestal 7 can be pressed on the upper surface of cylindrical collar 22 by the second nut 25, and the second annular is equipped in the middle part of the lateral surface of positioning column 6
Positioning plate 23 is equipped with damping spring 24, passes through between the upper surface of second circular orientation plate 23 and the lower surface of cylindrical collar 22
Damping spring 24 effectively can carry out damping to pedestal 7, and the lower end surface of positioning column 6 is connected with support plate 3, the outside of support plate 3
Face is uniformly distributed on peripheries with four mounting plates 5, and the upper surface middle part of mounting plate 5 is equipped with mounting hole 4, and mounting hole 4 combines setting for mounting plate 5
It sets and facilitates the installation of the utility model and fix, this screw thread ball valve is compact-sized, and easy for installation, maintenance is simple, can efficiently pacify
In full progress pipeline the cutting of liquid be connected to.
When in use: the utility model being installed to by suitable position by mounting hole 4 and mounting plate 5, then by installing pipe
13 mutually tie with external pipe, and installing pipe 13 is pressed on to the lateral surface of valve body 8 by the first screw rod 11, when needing to open pipeline
When, 9 rotating shaft 10 of ring-shaped handle is held, drives the rotation of ball valve 10 by its rotated ninety degrees by shaft 10, it is spherical at this time
Valve 10 connects exterior line, and when valve body 8 is shaken due to the impact of liquid, valve body 8 transmits vibrations to pedestal 7,
Reduction absorption is carried out by 24 pairs of damping spring vibrations, while pedestal 7 is pressed on the lower surface of the second nut 25 by damping spring 24
Its position is fixed.
What the utility model can be convenient install, and occupied space is few when use, is easily installed and uses；It can be effective
The vibration of valve body 8 is absorbed, ease of use is improved；The setting of mounting plate 5, which facilitates, facilitates installation to fix, and improves
Ease of use.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of screw thread ball valve, including valve body (8), it is characterised in that: left and right ends are equipped in the middle part of the lateral surface of the valve body (8)
Two connecting tubes (28) being symmetrical set, the medial surface of connecting tube (28) are socketed with cylindricality intubation (17), connecting tube (28)
Medial surface close to cylindricality intubation (17) one end be equipped with the second sealing ring (16), cylindricality be intubated (17) left side be equipped with installation
It manages (13), the medial surface of installing pipe (13) is equipped with connection screw thread, and upper end is socketed with the second arc in the middle part of the lateral surface of installing pipe (13)
The lateral surface middle part lower end of shape fixture block (12), installing pipe (13) is socketed with the first arc fixture block (1), the lateral surface of installing pipe (13)
Right end is equipped with first annular positioning plate (20), and the lateral surface of first annular positioning plate (20) is uniformly distributed on peripheries with four locating pieces
(21), locating piece (21) is socketed with the first screw rod (11) by the way that the location hole of Middle face on the outside is arranged, the inside of valve body (8)
Middle face be equipped with ball valve (14), the medial surface left and right ends of valve body (8) set there are two be symmetrical set first sealing
It encloses (15), the lateral surface upper end of ball valve (14) is equipped with shaft (10), and the first arc fixture block (1) is by being arranged face on the outside
The support rib (2) of lower end is fixedly connected with pedestal (7), and pedestal (7) is determined by being disposed thereon the location hole on surface and being socketed with
Position column (6), the quantity of positioning column (6) are four, and four positioning columns (6) are evenly distributed on the upper surface surrounding of pedestal (7), positioning
Threaded one end of the lateral surface of column (6) close to pedestal (7) upper surface is connected with the second nut (25), the lateral surface of positioning column (6)
One end close to pedestal (7) lower surface is socketed with cylindrical collar (22), and it is fixed that the second annular is equipped in the middle part of the lateral surface of positioning column (6)
Position plate (23) is equipped with damping spring between the upper surface of the second circular orientation plate (23) and the lower surface of cylindrical collar (22)
(24), the lower end surface of positioning column (6) is connected with support plate (3).
2. a kind of screw thread ball valve according to claim 1, it is characterised in that: the lateral surface of the first arc fixture block (1)
Upper end front and rear sides are set there are two symmetrically arranged first mounting plate in front and back, before and after the lateral surface lower end of the second arc fixture block (12)
Two sides are set there are two symmetrically arranged second mounting plate in front and back, and the second mounting plate is connected by positioning bolt with the first mounting plate.
3. a kind of screw thread ball valve according to claim 1, it is characterised in that: the lateral surface of first screw rod (11) is close
The threaded one end of locating piece (21) left side is connected with cylindrical collar, and the lateral surface of the first screw rod (11) is close to locating piece (21) right side
The threaded one end of side is connected with the second nut.
4. a kind of screw thread ball valve according to claim 1, it is characterised in that: in the middle part of the lateral surface of first screw rod (11)
It is socketed with third connecting plate, the lateral surface of the lateral surface and valve body (8) of third connecting plate mutually welds.
5. a kind of screw thread ball valve according to claim 1, it is characterised in that: the lateral surface lower end of the ball valve (14)
Middle part is equipped with locating rod (18), and bearing of the lateral surface lower end and setting of locating rod (18) in valve body (8) medial surface bottom rotates
Connection.
6. a kind of screw thread ball valve according to claim 1, it is characterised in that: the lateral surface upper end of the valve body (8) is equipped with
Rectangular seal block (29), the medial surface of rectangular seal block (29) are equipped with the rubber seal with the lateral surface of shaft (10) against setting
Circle.
7. a kind of screw thread ball valve according to claim 6, it is characterised in that: socket in the middle part of the lateral surface of the shaft (10)
Have abutment sleeve (19), the lateral surface of abutment sleeve (19) passes through the upper surface phase of the second screw rod (27) and rectangular seal block (29)
Even.
8. a kind of screw thread ball valve according to claim 1, it is characterised in that: the lateral surface upper end of the shaft (10) is socketed
Have lantern ring (26), lantern ring (26) is fixedly connected with ring-shaped handle (9) by the way that the spoke of Middle face on the outside is arranged.
9. a kind of screw thread ball valve according to claim 8, it is characterised in that: the lateral surface of the shaft (10) is close to lantern ring
(26) threaded one end of upper surface is connected with the 5th nut, one end spiral shell of the lateral surface of shaft (10) close to lantern ring (26) lower surface
Line is connected with the 6th nut.
10. a kind of screw thread ball valve according to claim 1, it is characterised in that: the lateral surface surrounding of the support plate (3) is equal
There are four mounting plate (5), the upper surface middle parts of mounting plate (5) to be equipped with mounting hole (4) for cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821716047.8U CN209262297U (en) | 2018-10-23 | 2018-10-23 | A kind of screw thread ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821716047.8U CN209262297U (en) | 2018-10-23 | 2018-10-23 | A kind of screw thread ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209262297U true CN209262297U (en) | 2019-08-16 |
Family
ID=67558527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821716047.8U Withdrawn - After Issue CN209262297U (en) | 2018-10-23 | 2018-10-23 | A kind of screw thread ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209262297U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237068A (en) * | 2018-10-23 | 2019-01-18 | 镇江市神龙电器管件有限公司 | A kind of screw thread ball valve |
| CN112648423A (en) * | 2019-10-11 | 2021-04-13 | 中山景晟电子科技有限公司 | Lock valve sleeve of pipeline gas valve |
| CN113236821A (en) * | 2021-04-29 | 2021-08-10 | 江苏苏盐阀门机械有限公司 | Three-way sealing ball valve |
-
2018
- 2018-10-23 CN CN201821716047.8U patent/CN209262297U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237068A (en) * | 2018-10-23 | 2019-01-18 | 镇江市神龙电器管件有限公司 | A kind of screw thread ball valve |
| CN109237068B (en) * | 2018-10-23 | 2023-11-24 | 镇江市神龙电器管件有限公司 | Screw thread ball valve |
| CN112648423A (en) * | 2019-10-11 | 2021-04-13 | 中山景晟电子科技有限公司 | Lock valve sleeve of pipeline gas valve |
| CN113236821A (en) * | 2021-04-29 | 2021-08-10 | 江苏苏盐阀门机械有限公司 | Three-way sealing ball valve |
| CN113236821B (en) * | 2021-04-29 | 2021-11-23 | 江苏苏盐阀门机械有限公司 | Three-way sealing ball valve |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190816 Effective date of abandoning: 20231124 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190816 Effective date of abandoning: 20231124 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |