CN105526354B - Mechanically-sealing apparatus - Google Patents
Mechanically-sealing apparatus Download PDFInfo
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- CN105526354B CN105526354B CN201510754847.3A CN201510754847A CN105526354B CN 105526354 B CN105526354 B CN 105526354B CN 201510754847 A CN201510754847 A CN 201510754847A CN 105526354 B CN105526354 B CN 105526354B
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- ring
- stationary
- axle sleeve
- seat
- stationary ring
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Abstract
The invention discloses a kind of mechanically-sealing apparatus, including the stationary seat (3) connected for the axle sleeve (2) in shaft (1) and for the opening with supplying shaft (1) to pass through on mechanical equipment, stationary seat (3) is socketed on axle sleeve (2), further includes the first stationary ring (4), the second stationary ring (5), the first rotating ring (6), the second rotating ring (7), the first rotating seat (8), the second rotating seat (9) and compression spring (10).The mechanically-sealing apparatus that a kind of shaft may insure rotating ring end face under rotation situation and stationary ring end face is always maintained at fit-state is provided.
Description
Technical field
The present invention relates to technical field of mechanical, more particularly to a kind of mechanically-sealing apparatus.
Background technology
Mechanical seal refers to, it is at least one perpendicular to the end face of shaft axis in Fluid pressure and the work of compensation mechanism elastic force
With the device for preventing fluid from leaking for keeping fitting under lower and auxiliary seal cooperation and being formed with respect to slip.Such as from
In the equipment such as heart pump, centrifuge, reaction kettle and compressor, since shaft is applied in inside and outside aforementioned device, shaft and equipment
Between will there are a circumferential clearance；When shaft is rotated relative to equipment, the medium inside equipment can be by between the circumference
Gap leaks out；If the pressure subatmospheric inside equipment, air can be flowed into equipment, so as to must just there is a resistance
The sealing device of stopping leak leakage.Substantial amounts of mechanically-sealing apparatus is presently in existence, is mostly by being connected with stationary ring in equipment, turning
Rotating ring is connected with axis, axially spring is being provided with to ensure that rotating ring end face is bonded with stationary ring end face with stationary ring in rotating ring, and
Rotating ring can be rotated relative to stationary ring.But rotating ring of the prior art relative to stationary ring occur axial runout when, rotating ring end face
The axial gap of moment still can be produced with stationary ring end face, so that the medium in equipment will be leaked out from the axial gap.
That is, existing mechanically-sealing apparatus can not ensure that rotating ring end face is remained with stationary ring end face under shaft rotation situation
The state of fitting.
The content of the invention
The technical problem to be solved in the present invention is overcome existing technological deficiency, there is provided a kind of shaft is under rotation situation
It may insure that rotating ring end face is always maintained at the mechanically-sealing apparatus of fit-state with stationary ring end face.
The technical solution of the present invention is to provide a kind of with the mechanically-sealing apparatus of lower structure：Including for pacifying
Axle sleeve in shaft and the stationary seat for the opening connection with being passed through on mechanical equipment for shaft, stationary seat are socketed in axis
Put on, further include the first stationary ring, the second stationary ring, the first rotating ring, the second rotating ring, the first rotating seat, the second rotating seat and compression spring；Institute
The first stationary ring stated is socketed on axle sleeve periphery wall, and the first stationary ring is slidably connected in stationary seat, and the first stationary ring is arranged on axis
Put on one end inside mechanical equipment；Second stationary ring is socketed on axle sleeve periphery wall, and the second stationary ring is slidably connected at stationary ring
In seat, and the second stationary ring is arranged on one end on axle sleeve outside mechanical equipment；First rotating seat is fixedly connected on outside axle sleeve
On perisporium, and the first rotating seat is arranged on one end on axle sleeve inside mechanical equipment；Second rotating seat is along axle sleeve axis side
It is connected to adjustable on axle sleeve periphery wall, and the second rotating seat is arranged on one end on axle sleeve outside mechanical equipment；The
One stationary ring and the second stationary ring are located at the first rotating seat and the second rotating seat along the axial gap of axle sleeve axis；First rotating ring is embedded in
In the first rotating seat, and the first rotating ring is located at the first rotating seat and the first stationary ring along the axial gap of axle sleeve axis；Second
Rotating ring is inlaid in the second rotating seat, and the second rotating ring is located at the axial gap of the second rotating seat and the second stationary ring along axle sleeve axis
It is interior；First stationary ring is equipped with multiple guide rods towards extension outside mechanical equipment along axle sleeve axis direction, is set on the second stationary ring
There is the guide sleeve being slidably connected for guide rod；Compression spring is socketed on guide rod, and compression spring is between the first stationary ring end face and guide sleeve end face
Along along the axial gap of axle sleeve axis.
In rotation work, the first stationary ring and the second stationary ring are located remotely from each other shaft in the present invention under the action of compression spring
Trend, that is to say, that the first stationary ring and the second stationary ring under compression spring effect can respectively with the first rotating ring and the second rotating ring end
Face pushes against；In addition, after assembling, compression spring is all compressed all the time, thus compression spring just all the time all can to the first stationary ring and
Second stationary ring applies active force so that the first stationary ring is pushed against with the first rotating ring all the time, the second stationary ring is supported with the second rotating ring all the time
Tightly；Even if shaft and axle sleeve are moved axially relative to the opening of mechanical equipment, on the one hand, the first stationary ring and the second stationary ring
It can be relatively moved relative to stationary seat, so as to keep the axial spacing between the first stationary ring and the second stationary ring；The opposing party
Face, since shaft and axle sleeve can be pressed in the impact force for occurring to have compression spring one moment during moment axial movement, the impact force
Contracting compression spring, so that compression spring can apply the first stationary ring and the second stationary ring the reaction force of one bigger, so that the
One stationary ring supported with the first rotating ring, the second stationary ring with the second rotating ring it is compacter to prevent the medium in mechanical equipment from leaking, than
As said：When shaft is to when moving outside mechanical equipment, the first stationary ring can play the role of the effect for extruding compression spring and passing through compression spring
Push dynamic second stationary ring to draw close and push against to the second stationary ring, i.e., pressure can be acted on the first stationary ring and by extruded compression spring again
On two stationary rings, until the first stationary ring and the second stationary ring reach a new balance；When shaft is moved to mechanical equipment inside, the
Two stationary rings can play the role of extruding compression spring and promote the first stationary ring to draw close and push against to the first stationary ring by the active force of compression spring,
I.e. extruded compression spring can act on pressure on the first stationary ring and the second stationary ring again, until the first stationary ring and the second stationary ring reach
One new balance；Wherein, first can be improved by being slidably matched by the guide sleeve on the guide rod on the first stationary ring and the second stationary ring
The stability of stationary ring and the second stationary ring in relative movement, prevents the first stationary ring and the second stationary ring from being moved along axle sleeve axis direction
The displacement of Shi Fasheng radial directions.Therefore, the present invention provides a kind of shaft and may insure rotating ring end face and stationary ring end under rotation situation
Face is always maintained at the mechanically-sealing apparatus of fit-state.
As a preferred embodiment, close to machinery on end face and stationary seat on first stationary ring inside the mechanical equipment
First annular diaphragm is equipped between end face inside equipment, the outer ring of first annular diaphragm is inlaid on stationary seat, and passes through spiral shell
Nail compresses；The inner ring of first annular diaphragm is inlaid on the first stationary ring, and passes through screw in compression；Set on second stationary ring close to machinery
The second ring film, the second ring film are equipped between end face on standby exterior end face and stationary seat outside mechanical equipment
Outer ring be inlaid on stationary seat, and pass through screw in compression；The inner ring of second ring film is inlaid on the first stationary ring, and is passed through
Screw in compression.By this preferably, when the first stationary ring and the second stationary ring are moved axially relative to stationary seat, in mechanical equipment
Medium can not be revealed from the contact surface of the first stationary ring, the second stationary ring and stationary seat, improve the sealing of the mechanical seal
Effect.
As a preferred embodiment, it is equipped with pressure ring, the second ring film and screw between the first annular diaphragm and screw
Between be equipped with pressure ring.By this preferably, first annular diaphragm can be caused to be pressed in stationary ring in whole circumference direction
On seat end face and the first stationary ring end face so that first annular diaphragm is fully pushed against with the parts that are in contact, and avoids first annular film
Piece in circumferencial direction with the parts end face that is in contact there are gap, improve sealing of the first annular diaphragm with the parts that are in contact
Effect；Effect for the second ring film is also such.
As a preferred embodiment, second rotating seat is along adjustable be connected on axle sleeve periphery wall of axle sleeve axis direction
Refer to, the second rotating seat radially offers multiple through holes along axle sleeve, and blind hole is offered on axle sleeve, is connected with and is used on the second rotating seat
The lock-screw screwed through through hole and blind hole.By this preferably, axial position of second rotating seat relative to axle sleeve can be adjusted
Put, so as to play the axial spacing between the first rotating seat of adjustment and the second rotating seat, i.e., indirectly to the first stationary ring and second
The axial spacing of stationary ring is adjusted, and then changes the degree that compression spring is deformed；That is so that compression spring is for
The pressure bigger of one stationary ring and the second stationary ring so that the first stationary ring and the first rotating ring, the second stationary ring and the second rotating ring are against ground
It is compacter, improve the sealing effect of the mechanical seal；More direct effect is exactly, can not have to by the mechanical seal it is overall from
The leakproofness of the mechanical seal can be adjusted by being disassembled on mechanical equipment, it is only necessary to is directly adjusted outside mechanical equipment
Two rotating seats relative to axle sleeve axial location.
It is as a preferred embodiment, small at the same time for housing the diameter of bore of the first stationary ring and the second stationary ring on the stationary seat
In the first rotating seat and the outside diameter of the second rotating seat.By this preferably, it can prevent shaft and axle sleeve from axially moving
First rotating seat and the second rotating seat are passed through from stationary seat when dynamic, play a spacing effect so that stationary seat is position all the time
, will not there is a phenomenon where depart from axial spacing between the first rotating seat and the second rotating seat.
As a preferred embodiment, the guide rod is uniformly distributed along axle sleeve circumferencial direction.By this preferably, guide rod can be caused
Interaction force between guide sleeve is more uniform so that the relative movement of the first stationary ring and the second stationary ring is more steady.
Brief description of the drawings
Fig. 1 is the sectional view of the present invention.
The state diagram that Fig. 2 is stressed when acting on for the second stationary ring in the present invention.
Fig. 3 is the structure diagram of the first stationary ring in the present invention.
Fig. 4 is the structure diagram of stationary seat in the present invention.
Shown in figure：1st, shaft, 2, axle sleeve, 3, stationary seat, the 4, first stationary ring, the 5, second stationary ring, the 6, first rotating ring, 7,
Two rotating rings, the 8, first rotating seat, the 9, second rotating seat, 10, compression spring, 11, first annular diaphragm, the 12, second ring film, 13,
Screw, 14, through hole, 15, blind hole, 16, guide rod, 17, guide sleeve, 23, lock-screw.
Embodiment
The invention will be further described with reference to the accompanying drawings and detailed description.
Mechanically-sealing apparatus of the present invention includes the axle sleeve 2 being used in shaft 1 and for supplying to turn on mechanical equipment
The stationary seat 3 for the opening connection that axis 1 passes through, stationary seat 3 is socketed on axle sleeve 2, further includes the first stationary ring 4, the second stationary ring 5, the
One rotating ring 6, the second rotating ring 7, the first rotating seat 8, the second rotating seat 9 and compression spring 10；
First stationary ring 4 is socketed on 2 periphery wall of axle sleeve, and the first stationary ring 4 is slidably connected in stationary seat 3, and the
One stationary ring 4 is arranged on one end inside mechanical equipment on axle sleeve 2；Second stationary ring 5 is socketed on 2 periphery wall of axle sleeve, and second
Stationary ring 5 is slidably connected in stationary seat 3, and the second stationary ring 5 is arranged on one end on axle sleeve 2 outside mechanical equipment；
First rotating seat 8 is fixedly connected on 2 periphery wall of axle sleeve, and the first rotating seat 8 is arranged on axle sleeve 2 close to machinery
One end inside equipment, one end inside the close mechanical equipment refer in shaft 1 can and mechanical equipment interior media send out
The end of raw contact；Second rotating seat 9 is connected on 2 periphery wall of axle sleeve along 2 axis direction of axle sleeve is adjustable, and the second rotating seat
9 are arranged on axle sleeve 2 one end outside the mechanical equipment, and one end outside the close mechanical equipment refers in shaft 1
The end that will not be in contact with mechanical equipment interior media；First stationary ring 4 and the second stationary ring 5 are located at the first rotating seat 8 and
Two rotating seats 9 are along the axial gap of 2 axis of axle sleeve；
First rotating ring 6 is inlaid in the first rotating seat 8, and the first rotating ring 6 is located at 4 edge of the first rotating seat 8 and the first stationary ring
In the axial gap of 2 axis of axle sleeve；Second rotating ring 7 is inlaid in the second rotating seat 9, and the second rotating ring 7 is located at the second rotating seat 9
With the second stationary ring 5 along the axial gap of 2 axis of axle sleeve；
First stationary ring 4 is equipped with multiple guide rods 16 towards extension outside mechanical equipment along 2 axis direction of axle sleeve, and second
Stationary ring 5 is equipped with the guide sleeve 17 being slidably connected for guide rod 16；Compression spring 10 is socketed on guide rod 16, and compression spring 10 is located at the first stationary ring
Between 17 end face of 4 end faces and guide sleeve along the axial gap of 2 axis of axle sleeve.
On end face and stationary seat 3 on first stationary ring 4 inside mechanical equipment inside mechanical equipment
First annular diaphragm 11 is equipped between end face, the outer ring of first annular diaphragm 11 is inlaid on stationary seat 3, and is pressed by screw 13
Tightly；The inner ring of first annular diaphragm 11 is inlaid on the first stationary ring 4, and is compressed by screw 13；Close to machinery on second stationary ring 5
The second ring film 12, the second ring are equipped between end face on the end face of device external and stationary seat 3 outside mechanical equipment
The outer ring of shape diaphragm 12 is inlaid on stationary seat 3, and is compressed by screw 13；The inner ring of second ring film 12 is inlaid in first
On stationary ring 4, and compressed by screw 13.The outer ring refer on first annular 11 and second ring film 12 of diaphragm diameter compared with
A big circle, inner ring refer to the less circle of diameter on first annular 11 and second ring film 12 of diaphragm.First ring
11 and second ring film 12 of shape diaphragm is made of elastic material, such as the nitrile rubber in rubber, butadiene rubber, poly- amino
Formic acid esters rubber etc., the elastic deformability of these rubber is stronger, can give the first stationary ring 4 relative to stationary seat, the second stationary ring 5
Certain deflection is provided when being moved axially relative to stationary seat 3.
Pressure ring is equipped between the first annular diaphragm 11 and screw 13, is set between the second ring film 12 and screw 13
There is pressure ring.The pressure ring is the platy structure of a circular ring shape, its shape and first annular diaphragm 11, the second ring film
12 shapes match.
Second rotating seat 9 refers to that second is dynamic along adjustable be connected on 2 periphery wall of axle sleeve of 2 axis direction of axle sleeve
Ring seat 9 offers multiple through holes 14 along 2 radial direction of axle sleeve, and blind hole 15 is offered on axle sleeve 2, is connected with and is used on the second rotating seat 9
The lock-screw 23 screwed through through hole 14 and blind hole 15.
It is used to house the diameter of bore of the first stationary ring 4 and the second stationary ring 5 on the stationary seat 3 while is less than the first rotating ring
The outside diameter of 8 and second rotating seat 9 of seat.
The guide rod 16 is uniformly distributed along 2 circumferencial direction of axle sleeve.Wherein, the quantity of guide rod 16 can have more, and with
17 quantity of guide sleeve of matching also increase therewith.
Wherein, this mechanical seal is additionally provided with many places sealing ring, such as the first rotating seat 8 and 2 contact surface of axle sleeve, the second rotating seat
9 and 8 contact surface of 2 contact surface of axle sleeve, the first rotating ring 6 and the first rotating seat, 9 contact surface of the second rotating ring 7 and the second rotating seat etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit protection scope of the present invention.It is all to be wanted in right of the present invention
Within asking, any modification, equivalent substitution and improvement for being made etc., should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of mechanically-sealing apparatus, it includes the axle sleeve (2) being used in shaft (1) and for being supplied on mechanical equipment
The stationary seat (3) for the opening connection that shaft (1) passes through, stationary seat (3) are socketed on axle sleeve (2), it is characterised in that：Further include
One stationary ring (4), the second stationary ring (5), the first rotating ring (6), the second rotating ring (7), the first rotating seat (8), the second rotating seat (9) and pressure
Spring (10)；
First stationary ring (4) is socketed on axle sleeve (2) periphery wall, and the first stationary ring (4) is slidably connected in stationary seat (3),
And first stationary ring (4) be arranged on axle sleeve (2) one end inside the mechanical equipment；Second stationary ring (5) is socketed in axle sleeve (2) outside
On perisporium, the second stationary ring (5) is slidably connected in stationary seat (3), and the second stationary ring (5) is arranged on axle sleeve (2) close to machinery
One end of device external；
First rotating seat (8) is fixedly connected on axle sleeve (2) periphery wall, and the first rotating seat (8) be arranged on it is close on axle sleeve (2)
One end inside mechanical equipment；Second rotating seat (9) is connected on axle sleeve (2) periphery wall along axle sleeve (2) axis direction is adjustable,
And second rotating seat (9) be arranged on axle sleeve (2) one end outside the mechanical equipment；First stationary ring (4) and the second stationary ring (5)
Positioned at the first rotating seat (8) and the second rotating seat (9) along the axial gap of axle sleeve (2) axis；
First rotating ring (6) is inlaid in the first rotating seat (8), and the first rotating ring (6) is located at the first rotating seat (8) and the first stationary ring
(4) along the axial gap of axle sleeve (2) axis；Second rotating ring (7) is inlaid in the second rotating seat (9), and the second rotating ring (7) position
In the second rotating seat (9) and the second stationary ring (5) along the axial gap of axle sleeve (2) axis；
First stationary ring (4) is equipped with multiple guide rods (16) towards extension outside mechanical equipment along axle sleeve (2) axis direction, the
Two stationary rings (5) are equipped with the guide sleeve (17) being slidably connected for guide rod (16)；Compression spring (10) is socketed on guide rod (16), and compression spring
(10) between the first stationary ring (4) end face and guide sleeve (17) end face along the axial gap of axle sleeve (2) axis；
On end face and stationary seat (3) on first stationary ring (4) inside mechanical equipment inside mechanical equipment
First annular diaphragm (11) is equipped between end face, the outer ring of first annular diaphragm (11) is inlaid on stationary seat (3), and passes through spiral shell
Nail compresses；The inner ring of first annular diaphragm (11) is inlaid on the first stationary ring (4), and passes through screw in compression；
End face and the end face on stationary seat (3) outside mechanical equipment on second stationary ring (5) outside the mechanical equipment it
Between be equipped with the second ring film (12), the outer ring of the second ring film (12) is inlaid on stationary seat (3), and passes through screw pressure
Tightly；The inner ring of second ring film (12) is inlaid on the second stationary ring (5), and passes through screw in compression；
The first annular diaphragm (11) and the second ring film (12) is made of elastic material, can give the first stationary ring
(4) certain deflection is provided when being moved axially relative to stationary seat (3), the second stationary ring (5) relative to stationary seat (3),
The first annular diaphragm (11) is equipped with pressure ring between screw, and the second ring film (12) is equipped with pressure ring between screw.
2. mechanically-sealing apparatus according to claim 1, it is characterised in that：Second rotating seat (9) is along axle sleeve (2)
Adjustable be connected on axle sleeve (2) periphery wall of axis direction refers to that the second rotating seat (9) radially offers multiple along axle sleeve (2)
Through hole (14), offers blind hole (15) on axle sleeve (2), is connected with the second rotating seat (9) for through through hole (14) and blind hole
(15) lock-screw (23) screwed.
3. mechanically-sealing apparatus according to claim 1, it is characterised in that：It is used to house the on the stationary seat (3)
The diameter of bore of one stationary ring (4) and the second stationary ring (5) is at the same time less than the first rotating seat (8) and the outside diameter of the second rotating seat (9).
4. mechanically-sealing apparatus according to claim 1, it is characterised in that：The guide rod (16) is along axle sleeve (2) circumference
Direction is uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510754847.3A CN105526354B (en) | 2015-11-09 | 2015-11-09 | Mechanically-sealing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510754847.3A CN105526354B (en) | 2015-11-09 | 2015-11-09 | Mechanically-sealing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105526354A CN105526354A (en) | 2016-04-27 |
| CN105526354B true CN105526354B (en) | 2018-05-15 |
Family
ID=55768763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510754847.3A Active CN105526354B (en) | 2015-11-09 | 2015-11-09 | Mechanically-sealing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105526354B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780215B (en) * | 2018-07-12 | 2024-04-19 | 广东维钠智能密炼机械科技有限公司 | Double-moving-ring Shan Dinghuan interlocking internal-pressure sealing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5605436A (en) * | 1995-05-24 | 1997-02-25 | Apv Fluid Handling Horsens A/S | Centrifugal pump |
| CN202545814U (en) * | 2012-04-25 | 2012-11-21 | 黑龙江科技学院 | Mechanical sealing device with adjustable pre-tightening force |
| CN203272220U (en) * | 2013-05-21 | 2013-11-06 | 白银鸿浩化工机械制造有限公司 | Two-end-face packaging type mortar pump mechanical seal |
| CN203297629U (en) * | 2013-06-03 | 2013-11-20 | 中国石油化工股份有限公司 | Single mechanical sealing device |
| CN203868332U (en) * | 2014-05-28 | 2014-10-08 | 宁波东联密封件有限公司 | Mechanical seal for dryer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2420229Y (en) * | 1999-11-05 | 2001-02-21 | 成都明达船用密封有限公司 | Water lubricating stern shaft sealing device for ship |
| CN203868328U (en) * | 2014-05-14 | 2014-10-08 | 宁波东联密封件有限公司 | Bellows sealing element of water pump |
-
2015
- 2015-11-09 CN CN201510754847.3A patent/CN105526354B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5605436A (en) * | 1995-05-24 | 1997-02-25 | Apv Fluid Handling Horsens A/S | Centrifugal pump |
| CN202545814U (en) * | 2012-04-25 | 2012-11-21 | 黑龙江科技学院 | Mechanical sealing device with adjustable pre-tightening force |
| CN203272220U (en) * | 2013-05-21 | 2013-11-06 | 白银鸿浩化工机械制造有限公司 | Two-end-face packaging type mortar pump mechanical seal |
| CN203297629U (en) * | 2013-06-03 | 2013-11-20 | 中国石油化工股份有限公司 | Single mechanical sealing device |
| CN203868332U (en) * | 2014-05-28 | 2014-10-08 | 宁波东联密封件有限公司 | Mechanical seal for dryer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105526354A (en) | 2016-04-27 |
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Effective date of registration: 20190507 Address after: 315194 Li Huaqiao Village, Shounan Street, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: NINGBO JIAWEI MACHINERY TECHNOLOGY CO.,LTD. Address before: 315191 Zhonghe Industry of Samsung Avenue in Jiangshan Science and Technology Park, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: NINGBO FAITH MECHANICAL SEAL Co.,Ltd. |
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Effective date of registration: 20221213 Address after: 315000 Floor 2, Building 7, No. 789, Xiaying North Road, Panhuo Street, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: XGIMI (Ningbo) Intelligent Equipment Co.,Ltd. Address before: 315194 Zhejiang city of Ningbo province Yinzhou District Li Hua Qiao Cun, Shou Nan Street Patentee before: NINGBO JIAWEI MACHINERY TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right |