CN109114247A - A kind of novel flange type ball valve - Google Patents
A kind of novel flange type ball valve Download PDFInfo
- Publication number
- CN109114247A CN109114247A CN201811234822.0A CN201811234822A CN109114247A CN 109114247 A CN109114247 A CN 109114247A CN 201811234822 A CN201811234822 A CN 201811234822A CN 109114247 A CN109114247 A CN 109114247A
- Authority
- CN
- China
- Prior art keywords
- valve body
- spool
- sleeve
- control stick
- type ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 210000000481 breast Anatomy 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 abstract description 6
- 230000007812 deficiency Effects 0.000 abstract description 2
- 230000006866 deterioration Effects 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
- F16K5/0605—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 with particular plug arrangements, e.g. particular shape or built-in means
-
- 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
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a kind of novel flange type ball valves, including valve body, the valve body is cylinder-like structure, and terminal pad is respectively set in the both ends of valve body, and the middle position of valve body along vertically with valve axis direction be arranged cylindrical sleeve, and the internal diameter of sleeve is less than the internal diameter of valve body, spool is arranged in the valve inner middle position, the spool is spherical structure, and the blind hole of six prismatics is arranged close to a side surface of sleeve for spool, and blind hole internal engagement installs spool control stick, the utility model flange type ball valve uses the spool of ceramic material, it avoids interior media from generating with spool to react, ceramics wear-resisting property with higher simultaneously, improve airtightness deficiency problem caused by mechanical wear, the spring washer of two sides simultaneously, inner valve body can be pushed to center, reduce gap between inner valve body and spool, to play to the automatic of inter deterioration Compensation, is effectively ensured the airtight performance of valve body.
Description
Technical field
The present invention relates to valve body technical field, specially a kind of novel flange type ball valve.
Background technique
So-called ball valve refers to making opening and closing element with the sphere with circular through hole, and sphere is rotated with valve rod, to realize that opening and closing is dynamic
The valve of work.With the rapid development of science and technology, ball valve is widely used in petroleum refining, long-distance transport pipes, chemical industry, makes
The industries such as paper, pharmacy, water conservancy, electric power, municipal administration, steel occupy very important status in national economy.Ball valve mostly uses greatly
Metal is made, and valve body and valve deck are needed using die casting at manufacture initial stage into casting, then being processed to casting and
It is made.
But chemical industry is also required to a large amount of ball valve and uses now, metal spool for chemical industry, can with it is interior
Portion's medium reacts, and interior media impurity is caused to increase, while in mechanical rotation process, metal ball-valve can generate abrasion,
It causes internal airtightness insufficient, to lead to the problem of leakage, influences to produce and use.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, a kind of novel flange type ball valve is provided, using pottery
The spool of porcelain material avoids interior media from generating with spool and reacts, while ceramics wear-resisting property with higher, improves mechanical mill
Airtightness deficiency problem caused by damage, while the spring washer of two sides can push inner valve body to center, reduce inner valve body and valve
The airtight performance of valve body is effectively ensured to play the automatic compensation to inter deterioration in gap between core, can effectively solve to carry on the back
The problems in scape technology.
To achieve the above object, the invention provides the following technical scheme: a kind of novel flange type ball valve, including valve body, institute
Stating valve body is cylinder-like structure, and the both ends of valve body are respectively set terminal pad, and the middle position of valve body along vertically with valve body axis
Cylindrical sleeve is arranged in line direction, and the internal diameter of sleeve is less than the internal diameter of valve body, and spool is arranged in the valve inner middle position,
The spool is spherical structure, and the blind hole of six prismatics is arranged close to a side surface of sleeve for spool, and blind hole internal engagement is pacified
Cartridge spool control stick, the spool control stick is arranged in sleeve inner, and spool control stick and sleeve are coaxial, the spool manipulation
The upper end of bar is coupled with outside connecting rod, and the outside connecting rod and spool control stick are coaxial, and outside connecting rod extends to cartridge exterior, and
The top of outside connecting rod is coupled flange, and the valve inner of the spool two sides is coupled inner valve body, the inner valve body and valve
Body is coaxial, and inner valve body contacts installation with spool close to one end of spool.
As a preferred technical solution of the present invention, the valve body is step sleeve, the middle section of the valve body
Internal diameter be greater than both ends internal diameter, and the sleeve diameter outside valve body be greater than outside connecting rod and spool control stick outer diameter.
As a preferred technical solution of the present invention, the inner valve body is pyramidal structure, and the major diameter of inner valve body is open
End contacts installation with spool, and the major diameter open end of inner valve body and path open end respectively with the large diameter portion of valve body and small diameter portion
The inner wall divided contacts installation.
As a preferred technical solution of the present invention, the major diameter open end and path open end of the inner valve body and valve body
Large diameter portion and path part inner wall between be coupled the sealing ring of silica gel material, and the major diameter open end of inner valve body
The contact ring of the position fixed setting ceramic material contacted with spool.
As a preferred technical solution of the present invention, the spherical structure of the spool ceramic material, and the bottom of spool
Arc groove is set, and the axis of rotation of the arc groove is overlapped with the central axes of six prismatic blind holes at the top of spool.
As a preferred technical solution of the present invention, the arc groove internal engagement installation arc of the spool bottom is convex
It rises, the arc convex lower end is vertically arranged adjusting bolt, and screw thread is arranged in the bottom side of the wall and sleeve corresponding position of the valve body
The threaded hole of hole, the adjusting bolt and valve body is coupled.
As a preferred technical solution of the present invention, spool control stick middle position passes through mechanical seal and sleeve
Inner wall be coupled, and the lower end of spool control stick be hexagonal prisms, the hexagonal prisms and six prismatic blind holes of spool upper end are
Interference fit.
As a preferred technical solution of the present invention, the upper end of the spool control stick is optical axis, and top is spline
Axis, the outside connecting rod lower end is splined sleeve, and 1-2 centimetres of the opening of splined sleeve is smooth inner wall, the splined sleeve set
Spring is installed additional outside the upper end of spool control stick, and between spool control stick and outside connecting rod.
As a preferred technical solution of the present invention, the external fixed setting outer gear ring of the spool control stick is described
Outer gear ring is engaged with the gear of motor output shaft end, and the input terminal of the motor is connect by control switch with external power supply.
As a preferred technical solution of the present invention, spring pad is respectively set far from the side of spool in the inner valve body
Circle, and internal screw thread is respectively provided at the both ends open of valve body.
Compared with prior art, the beneficial effects of the present invention are: the utility model flange type ball valve uses the spool of ceramic material,
And the material of inner valve body is selected according to interior media, it avoids reacting between interior media and spool and inner valve body, effectively protect
The degree of purity of interior media is demonstrate,proved, and inner valve body is sleeved on valve inner, by the protection of valve body, not will receive external collision, makes
Inner valve body has more material available；
The spool of the valve inner of the utility model flange type ball valve is open using ceramic spool, and in the major diameter of inner valve body
The contact ring of end setting ceramic material reduces mechanical wear using the wear-resisting property of ceramics, while bullet is arranged in the outer end of inner valve body
Spring washer can push inner valve body mobile to centre, to reduce the gap between inner valve body and spool, guarantee valve inner
Leakproofness；
Arc groove, and the arc that setting can adjust up and down inside arc groove is arranged in the spool lower end of the utility model flange type ball valve
Shape protrusion has preferable rotating accuracy, while using the inner valve body of taper to make spherical spool during rotation,
Increase the sectional area at spherical valve core, to reduce impact of the interior media to spool；
The spool control stick and outside connecting rod of the utility model flange type ball valve use split-type design, and outside spool control stick
Portion is connected to motor by outer gear ring and gear drive, can be by motor job control valve core rotation, while can also be passed through
The rotation that upper flanges carry out spool is pressed and rotated, realizes two kinds of regulative modes, and during motorized adjustment, not will drive method
Orchid rotation, avoids accidentally injuring.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is transverse sectional view of the present invention；
Fig. 3 is longitudinal sectional view of the present invention；
Fig. 4 is spool control stick of the present invention and outside connecting rod assembling schematic diagram.
In figure: 1 valve body, 2 flanges, 3 spring washers, 4 inner valve bodies, 5 spools, 6 adjust bolts, 7 spool control sticks, 8 springs,
9 outside connecting rods, 10 contact rings, 11 sealing rings, 12 motors.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-4 is please referred to, the present invention provides a kind of technical solution: a kind of novel flange type ball valve, including valve body 1, valve body 1
Be respectively set terminal pad for the both ends of cylinder-like structure, and valve body 1, and the middle position of valve body 1 along vertically with 1 axis side of valve body
To setting cylindrical sleeve, and the internal diameter of sleeve is less than the internal diameter of valve body 1, and spool 5, spool 5 is arranged in 1 bosom position of valve body
For spherical structure, and the blind hole of six prismatics, and blind hole internal engagement installation spool behaviour are arranged close to a side surface of sleeve for spool 5
Vertical pole 7, spool control stick 7 are arranged in sleeve inner, and spool control stick 7 and sleeve are coaxial, the upper end of spool control stick 7 with outside
Connecting rod 9 is coupled, and outside connecting rod 9 and spool control stick 7 are coaxial, and outside connecting rod 9 extends to cartridge exterior, and the top of outside connecting rod 9
End is coupled flange 2, and 1 internal engagement of valve body of 5 two sides of spool installs inner valve body 4, and inner valve body 4 and valve body 1 are coaxial, and internal valve
Body 4 contacts installation with spool 5 close to one end of spool 5；
Valve body 1 is step sleeve, and the internal diameter of the middle section of valve body 1 is greater than the internal diameter at both ends, and the set outside valve body 1
Cylinder internal diameter is greater than the outer diameter of outside connecting rod 9 and spool control stick 7；
Inner valve body 4 is pyramidal structure, and the major diameter open end of inner valve body 4 contacts installation with spool 5, and inner valve body 4 is big
Diameter open end and path open end contact installation with the inner wall of the large diameter portion of valve body 1 and path part respectively；
Between the major diameter open end and path open end of inner valve body 4 and the large diameter portion of valve body 1 and the inner wall of path part
It is coupled the sealing ring 11 of silica gel material, and the position fixed setting pottery that the major diameter open end of inner valve body 4 is contacted with spool 5
The contact ring 10 of porcelain material；
The spherical structure of 5 ceramic material of spool, and arc groove, the axis of rotation and valve of arc groove is arranged in the bottom of spool 5
The central axes of 5 six prismatic blind holes of top of core are overlapped；
The arc groove internal engagement of 5 bottom of spool installs arc convex, and arc convex lower end, which is vertically arranged, adjusts bolt 6,
Threaded hole is arranged in the bottom side of the wall and sleeve corresponding position of valve body 1, adjusts bolt 6 and the threaded hole of valve body 1 is coupled；
7 middle position of spool control stick is coupled by the inner wall of mechanical seal and sleeve, and under spool control stick 7
Holding is hexagonal prisms, and six prismatic blind holes of hexagonal prisms and 5 upper end of spool are interference fit；
The upper end of spool control stick 7 is optical axis, and top is splined shaft, and 9 lower end of outside connecting rod is splined sleeve, and spline housing
1-2 centimetres of opening of cylinder is smooth inner wall, and splined sleeve is sleeved on outside the upper end of spool control stick 7, and spool control stick 7 with
Install spring 8 between outside connecting rod 9 additional；
Outer gear ring is fixedly installed in the external of spool control stick 7, and outer gear ring is engaged with the gear of 12 output shaft end of motor, electricity
The input terminal of machine 12 is connect by control switch with external power supply；
Spring washer 3 is respectively set far from the side of spool 5 in inner valve body 4, and interior spiral shell is respectively provided at the both ends open of valve body 1
Line.
When in use: two sides being accessed and pick out pipe and pass through screw thread respectively connect with the internal screw thread at 1 both ends of valve body, make to connect
Enter and pick out pipe and squeeze spring washer 3, squeeze inner valve body 4 to centre, rotation adjusts bolt 6, and the centre of sphere of spool 5 is made to be in valve
On the axis of body 1, then, under electric model, motor 12 works, and is transmitted by gear and the power of outer gear ring, and band movable valve plug is grasped
Vertical pole 7 rotates, so that the rotation with movable valve plug 5, realizes that control is closed in the opening and closing of entire globe valve, at this time under the action of spring 8,
The splined shaft portion of 9 internal splines sleeve of outside connecting rod and 7 upper end of spool control stick is not in contact with will drive the rotation of outside connecting rod 9；
In a manual mode, flange 2 is pressed down on, at this time the spline shaft of outside connecting rod 9 internal splines sleeve and 7 upper end of spool control stick
Tap is touched and is engaged, and flange 2 is rotated, and outside connecting rod 9 and spool control stick 7 is driven to rotate, and band movable valve plug 5 rotates, to realize whole
Control is closed in the opening and closing of a globe valve.
The present invention uses the spool 5 of ceramic material, and the material of inner valve body 4 is selected according to interior media, avoids internal Jie
It reacts between matter and spool 5 and inner valve body 4, the degree of purity of interior media is effectively ensured, and inner valve body 4 is sleeved on valve body
Inside 1, by the protection of valve body 1, external collision not will receive, inner valve body 4 is made to have more material available；
The spool 5 of the valve inner of the utility model flange type ball valve uses the spool 5 of ceramics, and in the major diameter of inner valve body 4
The contact ring 10 of ceramic material is arranged in open end, using the wear-resisting property of ceramics, reduces mechanical wear, while inner valve body 4 is outer
End setting spring washer 3, it is mobile to centre can to push inner valve body 4, to reduce the gap between inner valve body 4 and spool 5, protects
Demonstrate,prove the leakproofness inside valve body 1；
Arc groove is arranged in 5 lower end of spool of the utility model flange type ball valve, and setting can adjust up and down inside arc groove
Arc convex has preferable rotating accuracy, while using the internal valve of taper to make spherical spool 5 during rotation
Body 4 increases the sectional area at spherical valve core 5, to reduce impact of the interior media to spool 5；
The spool control stick 7 and outside connecting rod 9 of the utility model flange type ball valve use split-type design, and in spool control stick
7 outsides are connect with motor 12, can be rotated by 12 job control spool 5 of motor by outer gear ring and gear drive, while
The rotation that spool 5 can be carried out by pressing and rotating upper flanges 2, realizes two kinds of regulative modes, and during motorized adjustment,
It not will drive the rotation of flange 2, avoid accidentally injuring.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of novel flange type ball valve, including valve body (1), it is characterised in that: the valve body (1) is cylinder-like structure, and valve
The both ends of body (1) are respectively set terminal pad, and the middle position of valve body (1) is along being vertically arranged cylinder with valve body (1) axis direction
Shape sleeve, and the internal diameter of sleeve is less than the internal diameter of valve body (1), spool (5) are arranged in valve body (1) the bosom position, described
Spool (5) is spherical structure, and the blind hole of six prismatics, and blind hole internal engagement are arranged close to a side surface of sleeve for spool (5)
It installs spool control stick (7), the spool control stick (7) is arranged in sleeve inner, and spool control stick (7) and sleeve are coaxial,
The upper end of the spool control stick (7) is coupled with outside connecting rod (9), the outside connecting rod (9) and spool control stick (7) coaxially,
And outside connecting rod (9) extends to cartridge exterior, and the top of outside connecting rod (9) is coupled flange (2), spool (5) two sides
Valve body (1) internal engagement installs inner valve body (4), and coaxially, and inner valve body (4) is close to spool for the inner valve body (4) and valve body (1)
(5) one end contacts installation with spool (5).
2. a kind of novel flange type ball valve according to claim 1, it is characterised in that: the valve body (1) is step set
Cylinder, the internal diameter of the middle section of the valve body (1) is greater than the internal diameter at both ends, and the sleeve diameter of valve body (1) outside is greater than outer company
The outer diameter of bar (9) and spool control stick (7).
3. a kind of novel flange type ball valve according to claim 1, it is characterised in that: the inner valve body (4) is taper knot
Structure, and the major diameter open end of inner valve body (4) contacts installation, and the major diameter open end of inner valve body (4) and path opening with spool (5)
End contacts installation with the inner wall of the large diameter portion of valve body (1) and path part respectively.
4. a kind of novel flange type ball valve according to claim 1, it is characterised in that: the major diameter of the inner valve body (4) is opened
The close of silica gel material is coupled between the inner wall of the large diameter portion and path part of mouth end and path open end and valve body (1)
Seal (11), and the major diameter open end of inner valve body (4) contacted with spool (5) position fixed setting ceramic material contact ring
(10)。
5. a kind of novel flange type ball valve according to claim 1, it is characterised in that: spool (5) ceramic material
Spherical structure, and arc groove is arranged in the bottom of spool (5), the axis of rotation and six prismatics at the top of spool (5) of the arc groove are blind
The central axes in hole are overlapped.
6. a kind of novel flange type ball valve according to claim 1, it is characterised in that: the arc of spool (5) bottom
Slot internal engagement installs arc convex, and the arc convex lower end, which is vertically arranged, adjusts bolt (6), the lower end of the valve body (1)
Threaded hole is arranged in side wall and sleeve corresponding position, and adjusting bolt (6) and the threaded hole of valve body (1) are coupled.
7. a kind of novel flange type ball valve according to claim 1, it is characterised in that: the spool control stick (7) is intermediate
Position is coupled by the inner wall of mechanical seal and sleeve, and the lower end of spool control stick (7) is hexagonal prisms, the hexagonal prisms
The six prismatic blind holes with spool (5) upper end are interference fit.
8. a kind of novel flange type ball valve according to claim 1, it is characterised in that: the spool control stick (7) it is upper
End is optical axis, and top is splined shaft, and outside connecting rod (9) lower end is splined sleeve, and 1-2 centimetres of the opening of splined sleeve is
Smooth inner wall, the splined sleeve are sleeved on outside the upper end of spool control stick (7), and spool control stick (7) and outside connecting rod (9)
Between install additional spring (8).
9. a kind of novel flange type ball valve according to claim 8, it is characterised in that: outside the spool control stick (7)
Outer gear ring is fixedly installed in portion, and the outer gear ring is engaged with the gear of motor (12) output shaft end, the input of the motor (12)
End is connect by control switch with external power supply.
10. a kind of novel flange type ball valve according to claim 1, it is characterised in that: the inner valve body (4) is far from spool
(5) side is respectively set spring washer (3), and is respectively provided with internal screw thread at the both ends open of valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811234822.0A CN109114247A (en) | 2018-10-23 | 2018-10-23 | A kind of novel flange type ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811234822.0A CN109114247A (en) | 2018-10-23 | 2018-10-23 | A kind of novel flange type ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109114247A true CN109114247A (en) | 2019-01-01 |
Family
ID=64855233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811234822.0A Withdrawn CN109114247A (en) | 2018-10-23 | 2018-10-23 | A kind of novel flange type ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109114247A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747126A (en) * | 2021-01-25 | 2021-05-04 | 叶素兰 | Sugar fluid blocking valve |
| CN116164125A (en) * | 2023-02-13 | 2023-05-26 | 江苏麦科特种阀门科技有限公司 | Leak-proof high-sealing valve |
-
2018
- 2018-10-23 CN CN201811234822.0A patent/CN109114247A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747126A (en) * | 2021-01-25 | 2021-05-04 | 叶素兰 | Sugar fluid blocking valve |
| CN116164125A (en) * | 2023-02-13 | 2023-05-26 | 江苏麦科特种阀门科技有限公司 | Leak-proof high-sealing valve |
| CN116164125B (en) * | 2023-02-13 | 2023-11-07 | 江苏麦科特种阀门科技有限公司 | Leak-proof high-sealing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190101 |
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| WW01 | Invention patent application withdrawn after publication |