CN109582093A - The wheel intermittent rotary mechanism of casing jacking heat dissipation hinge - Google Patents
The wheel intermittent rotary mechanism of casing jacking heat dissipation hinge Download PDFInfo
- Publication number
- CN109582093A CN109582093A CN201811643916.3A CN201811643916A CN109582093A CN 109582093 A CN109582093 A CN 109582093A CN 201811643916 A CN201811643916 A CN 201811643916A CN 109582093 A CN109582093 A CN 109582093A
- Authority
- CN
- China
- Prior art keywords
- casing
- wheel
- heat dissipation
- lifting body
- rotary mechanism
- 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
- 230000007246 mechanism Effects 0.000 title claims abstract description 37
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 21
- 239000003381 stabilizer Substances 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims 2
- 238000012856 packing Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
- G06F1/1681—Details related solely to hinges
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
- G06F1/203—Cooling means for portable computers, e.g. for laptops
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention discloses the wheel intermittent rotary mechanisms that a kind of casing jacks heat dissipation hinge, including screen main shaft and casing, what screen main shaft can rotate is installed on casing, it further include casing lifting body and intermittent drive mechanism, what the casing lifting body can move is installed on casing, casing lifting body can stretch out casing bottom surface setting height, screen main axis can drive casing lifting body intermittence to stretch out or retract casing bottom surface by intermittent drive mechanism, casing lifting body of the invention auto-extending and retraction casing bottom surface when laptop screen opens and closes, and screen and casing angle when adjusting in a certain range, casing is kept to be in jacking state constant, ensure that laptop sufficiently radiates in use state, extend laptop service life, thickness is shunk automatically when laptop closure simultaneously Easy to use convenient for smoothly storing and packing, without artificial individually operated, holding Laptop case thickness is most thin.
Description
Technical field
The present invention relates to one kind to be used for laptop, in particular to a kind of wheel intermittent rotary of casing jacking heat dissipation hinge
Mechanism.
Background technique
The thermovent of laptop in casing on the bottom surface of screen one end, in use, needing laptop
Bottom surface jacks certain height close to screen one end, makes between thermovent and desktop or table top for placing laptop
Gap is formed, ventilation and heat is used for, is distributed in time, quickly convenient for the heat of notebook, CPU is avoided to cross heat affecting computer
Running speed, while extending computer service life, at present Laptop case lifting body or be to be fixed on casing bottom surface
On bulge-structure or be that can pull the stabilizer blade extended and retracted, the first fixed structure will increase notebook thickness, no
Convenient for storing and packing, after second of support leg mechanism then needs to open computer screen or close computer screen, manually pull
Stabilizer blade is stretched out or is retracted, inconvenient to use, is also easy to forget.
Summary of the invention
In order to overcome drawbacks described above, the present invention provides the wheel intermittent rotary mechanisms that a kind of casing jacks heat dissipation hinge, should
Casing jacking heat dissipation hinge wheel intermittent rotary mechanism can laptop using when automatically keep jacking state, taking down notes
It is retracted automatically when this closure, is conducive to laptop heat-dissipation.
The present invention is to solve technical solution used by its technical problem: a kind of casing jacks between the wheel of heat dissipation hinge
It has a rest rotating mechanism, including screen main shaft and casing, what screen main shaft can rotate is installed on casing, further includes casing jack
Structure and intermittent drive mechanism, what the casing lifting body can move is installed on casing, and casing lifting body can stretch out
Casing bottom surface setting height, screen main axis can by intermittent drive mechanism drive casing lifting body intermittence stretch out or
Retract casing bottom surface.
As a further improvement of the present invention, the casing lifting body is that can be rotatablely installed in the branch on chassis sidewall
Foot.
As a further improvement of the present invention, it is vertical with stabilizer blade delay direction that the stabilizer blade, which stretches out one end of casing bottom surface,
Flat face, the corner that the flat face and stabilizer blade side wall are formed passes through arc surface transition.
As a further improvement of the present invention, the intermittent drive mechanism includes shifting block and turning wheel, and turning wheel can turn
Dynamic is installed in casing, and turning wheel is coaxially connected with casing lifting body, and turning wheel is equipped at least one open slot, shifting block
It is able to enter in the open slot of turning wheel and is slided along the open slot, screen main shaft is able to drive shifting block edge and turning wheel upper opening
The track of the cross-shaped state of slot moves back and forth.
As a further improvement of the present invention, the open slot on the turning wheel is to extend along turning wheel radial direction.
As a further improvement of the present invention, the screen main shaft is able to drive shifting block and submits along with turning wheel upper open slot
The structure that the track of forked state moves back and forth are as follows: be coaxially installed with driving wheel on screen main shaft, fixation can also be rotated in casing
Equipped with follower, driving wheel and follower engaged transmission, shifting block are coaxially connected with follower.
As a further improvement of the present invention, the driving wheel and follower are gear.
As a further improvement of the present invention, evenly spaced on the turning wheel to be equipped with four open slots.
As a further improvement of the present invention, the shifting block includes an eccentric wheel and a cylindrical body, eccentric wheel and follower
Coaxial to be connected, cylindrical body is fixedly installed at eccentric wheel diameter increase, and what cylindrical body be able to slide is inserted in opening for turning wheel
In mouth slot.
As a further improvement of the present invention, periphery wall shape of the turning wheel between adjacent two open slots
At the arc-shaped concave having for avoiding follower periphery surface.
The beneficial effects of the present invention are: the present invention interlocks intermittent drive mechanism by laptop screen main shaft, so that
Casing lifting body auto-extending and retraction on casing, casing lifting body of the invention laptop screen open and
Auto-extending and casing bottom surface is retracted when closure, and when screen and casing angle are adjusted in a certain range, casing is kept to be in
Jacking state is constant, it is ensured that laptop sufficiently radiates in use state, extends laptop service life, takes down notes simultaneously
Thickness shrinks automatically convenient for smooth storage and packs when this computer is closed, easy to use, without artificial individually operated, holding notes
This computer chassis thickness is most thin.
Detailed description of the invention
Fig. 1 is perspective view of the invention；
Fig. 2 is exploded view of the invention；
Fig. 3 is the first use state main view of the invention；
Fig. 4 is the second use state main view of the invention；
Fig. 5 is third use state main view of the invention；
Fig. 6 is the 4th use state main view of the invention.
Specific embodiment
Embodiment: a kind of wheel intermittent rotary mechanism of the jacking of casing 1 heat dissipation hinge, including screen main shaft 2 and casing 1, screen
What curtain main shaft 2 can rotate is installed on casing 1, further includes casing lifting body 5 and intermittent drive mechanism 3, the casing top
What liter mechanism 5 can move is installed on casing 1, and casing lifting body 5 can stretch out 1 bottom surface setting height of casing, screen master
The rotation of axis 2 can drive casing lifting body 5 is intermittent to stretch out or retract 1 bottom surface of casing by intermittent drive mechanism 3.
When the screen 100 of laptop is opened, is rotated using screen main shaft 2 and intermittent drive mechanism 3 is driven to move, into
And 5 intermittent exercise of casing lifting body is driven to stretch out 1 outer side bottom surface of casing, casing 1 is jacked up, realizes heat dissipation, when screen is beaten
When reaching specified angle (0-90 degree), casing lifting body 5 stretch out 1 maximum height of casing, screen continue open during by
Intermittent drive mechanism 3 acts on casing lifting body 5 and keeps lock support state motionless, when screen is closed to certain angle (90
Degree) after, screen continues in closing process, and intermittent drive mechanism 3 drives 5 counter motion of casing lifting body to be retracted into casing again
More than 1 bottom surface, realize that Laptop case 1 resets, which can be realized automatically will during laptop is opened
Casing 1 jacks up heat dissipation, and when screen is adjusted within the scope of certain angle in notebook use process, Laptop case 1
Remain that stable holding state is constant, notebook automatically falls off realization using complete closing screen back cabinet 1 again and resets, and is not necessarily to
1 supporting mechanism of casing is manually pulled, and can keep stable holding state constant in laptop use process,
Ensure sufficiently to radiate in laptop use process.
The casing lifting body 5 is that can be rotatablely installed in the stabilizer blade on 1 side wall of casing.It is realized by stabilizer blade rotation
1 outside of casing is reached, when it being allowed to be in plumbness with casing 1, it is highest state that casing 1, which is jacked up height, in addition to using
Rotational positioning is realized outside the structure that casing 1 supports, and can be sliding positioning, by casing lifting body 5 along 1 thickness direction of casing
Sliding realizes that it stretches out 1 outside of casing, realizes that casing 1 jacks, or realize by the automatic telescopic function of 1 Ding Shen mechanism of casing
It stretches out 1 outer side bottom surface of casing, realizes the jacking support of casing 1, such is all to hold very much after those skilled in the art see this patent
The equivalent constructions being readily conceivable that.
One end that the stabilizer blade stretches out 1 bottom surface of casing is the flat face vertical with stabilizer blade delay direction, the flat face and branch
The corner that foot side wall is formed passes through arc surface transition.When stabilizer blade stretch out 1 bottom surface setting height of casing after, end face be used for place
The plane of casing 1 is smooth, at this time stabilizer blade with the plane of casing 1 is vertical for placing, be able to maintain stable holding state, will not
Retraction is translated into, the contact of stabilizer blade and desktop, table top is realized by arc transition structure, avoids damage to desktop, table top.
The intermittent drive mechanism 3 includes shifting block and turning wheel 4, and what turning wheel 4 can rotate is installed in casing 1, is dialled
Driving wheel 4 with casing lifting body 5 is coaxial is connected, turning wheel 4 is equipped at least one open slot 41, and shifting block is able to enter turning wheel
It is slided in 4 open slot 41 and along the open slot 41, screen main shaft 2 is able to drive shifting block edge with 4 upper open slot 41 of turning wheel and is in
The track of crossing condition moves back and forth.Main shaft rotation, which drives, during being opened and closed by screen sets movement ahead, due to shifting block
Motion profile intersects with 41 extending direction of open slot, just will drive the rotation of turning wheel 4 in shifting block motion process, is skidded off by setting ahead
With the clutch for realizing transmission in insertion opening slot 41, between the structure realization turning wheel 4 in addition to using open slot 41 and shifting block cooperation
It, can also be by the way of ratchet and click-fit, the mode of gear and sector gear engaged transmission outside the structure of having a rest property rotation
Etc. realize the intermittent rotation driving of turning wheel 4.
Open slot 41 on the turning wheel 4 is to extend along 4 radial direction of turning wheel.
The screen main shaft 2 is able to drive shifting block and back and forth transports along the track with the cross-shaped state of 4 upper open slot of turning wheel 41
Dynamic structure are as follows: it is coaxially installed with driving wheel 31 on screen main shaft 2, can also be rotated in casing 1 and be fixed with follower 32, it is main
32 engaged transmission of driving wheel 31 and follower, shifting block are coaxial connected with follower 32.Pass through the driving wheel 31 and machine on screen main shaft 2
32 engaged transmission of follower in shell 1, realizes that shifting block is rotated around the shaft of follower 32, and then realizes that the track of shifting block is circular arc
Track, so be realize it is arranged in a crossed manner between the open slot 41 that radially extends, in addition, shifting block is also possible to move along a straight line.
The driving wheel 31 and follower 32 are gear.Pass through gear engaged transmission, it is ensured that transmission accuracy, it is ensured that screen
It can be got up by smooth jacking in opening procedure, can also be smooth surface wheel frictional drive or belt other than gear engaged transmission
Wheel passes through chain drive etc. by belt transmission, sprocket wheel.
It is evenly spaced on the turning wheel 4 to be equipped with four open slots 41.A plurality of open slot 41 realizes that shifting block interval is in the same direction
Rotation, after shifting block is exited along the sliding of open slot 41, next period enters sliding in adjacent apertures slot 41.
The shifting block includes an eccentric wheel 33 and a cylindrical body 34, and eccentric wheel 33 is coaxial connected with follower 32, cylindrical body
34 are fixedly installed at 33 diameter increase of eccentric wheel, and what cylindrical body 34 be able to slide is inserted in the open slot 41 of turning wheel 4.
Slided by the open slot 41 on cylindrical body 34 on eccentric wheel 33 and turning wheel 4, in opening slot 41, have arc surface with
41 side wall of open slot contact, it is ensured that the smooth opening slot 41 of shifting block.
Periphery wall of the turning wheel 4 between adjacent two open slots 41 is formed with for avoiding follower 32
The arc-shaped concave on periphery surface.Turning wheel 4 is contacted when follower 32 being avoided to rotate, it is ensured that the intermittent rotation of turning wheel 4.
Claims (10)
1. a kind of wheel intermittent rotary mechanism of casing jacking heat dissipation hinge, including screen main shaft (2) and casing (1), screen main shaft
What can be rotated is installed on casing, it is characterised in that: and it further include casing lifting body (5) and intermittent drive mechanism (3), it is described
What casing lifting body can move is installed on casing, and casing lifting body can stretch out casing bottom surface setting height, screen
Main axis can drive casing lifting body intermittence to stretch out or retract casing bottom surface by intermittent drive mechanism.
2. the wheel intermittent rotary mechanism of casing jacking heat dissipation hinge according to claim 1, it is characterised in that: the casing
Lifting body is that can be rotatablely installed in the stabilizer blade on chassis sidewall.
3. the wheel intermittent rotary mechanism of casing jacking heat dissipation hinge according to claim 2, it is characterised in that: the stabilizer blade
The one end for stretching out casing bottom surface is the flat face vertical with stabilizer blade delay direction, and the corner that the flat face and stabilizer blade side wall are formed is logical
Cross arc surface transition.
4. the wheel intermittent rotary mechanism of casing jacking heat dissipation hinge according to claim 2, it is characterised in that: the interval
Transmission mechanism includes shifting block and turning wheel (4), and what turning wheel can rotate is installed in casing, turning wheel and casing lifting body
Coaxial to be connected, turning wheel is equipped at least one open slot (41), and shifting block is able to enter in the open slot of turning wheel and opens along this
Mouth slot sliding, screen main shaft are able to drive shifting block edge and the track of the cross-shaped state of turning wheel upper open slot and move back and forth.
5. the wheel intermittent rotary mechanism of casing jacking heat dissipation hinge according to claim 4, it is characterised in that: described to stir
Open slot on wheel is to extend along turning wheel radial direction.
6. the wheel intermittent rotary mechanism of casing jacking heat dissipation hinge according to claim 4, it is characterised in that: the screen
Main shaft is able to drive shifting block along the structure moved back and forth with the track of the cross-shaped state of turning wheel upper open slot are as follows: on screen main shaft
It is coaxially installed with driving wheel (31), can also be rotated in casing and be fixed with follower (32), driving wheel engages biography with follower
Dynamic, shifting block is coaxially connected with follower.
7. the wheel intermittent rotary mechanism of casing jacking heat dissipation hinge according to claim 6, it is characterised in that: the active
Wheel and follower are gear.
8. according to right want 6 described in casing jacking heat dissipation hinge wheel intermittent rotary mechanism, it is characterised in that: the turning wheel
It is above evenly spaced to be equipped with four open slots.
9. according to right want 8 described in casing jacking heat dissipation hinge wheel intermittent rotary mechanism, it is characterised in that: the shifting block packet
An eccentric wheel (33) and a cylindrical body (34) are included, eccentric wheel is coaxially connected with follower, and it is straight that cylindrical body is fixedly installed in eccentric wheel
At diameter increase, what cylindrical body be able to slide is inserted in the open slot of turning wheel.
10. according to right want 9 described in casing jacking heat dissipation hinge wheel intermittent rotary mechanism, it is characterised in that: it is described to stir
The periphery wall taken turns between adjacent two open slots is formed with for avoiding the arc-shaped of follower periphery surface
Concave surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811643916.3A CN109582093B (en) | 2018-12-29 | 2018-12-29 | Intermittent wheel rotating mechanism of shell lifting heat dissipation hinge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811643916.3A CN109582093B (en) | 2018-12-29 | 2018-12-29 | Intermittent wheel rotating mechanism of shell lifting heat dissipation hinge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109582093A true CN109582093A (en) | 2019-04-05 |
| CN109582093B CN109582093B (en) | 2024-02-23 |
Family
ID=65932852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811643916.3A Active CN109582093B (en) | 2018-12-29 | 2018-12-29 | Intermittent wheel rotating mechanism of shell lifting heat dissipation hinge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109582093B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111857285A (en) * | 2019-04-25 | 2020-10-30 | 华为技术有限公司 | Lifting mechanism and electronic equipment |
| CN114546050A (en) * | 2022-03-01 | 2022-05-27 | 紫光计算机科技有限公司 | Notebook computer |
| CN114942669A (en) * | 2022-05-18 | 2022-08-26 | 紫光计算机科技有限公司 | Lifting structure of notebook foot pad |
| US11797060B2 (en) | 2020-05-29 | 2023-10-24 | Asustek Computer Inc. | Electronic device and pivot structure thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004287608A (en) * | 2003-03-19 | 2004-10-14 | Casio Comput Co Ltd | Lid opening device |
| TW201108702A (en) * | 2009-02-25 | 2011-03-01 | Laird Technologies Korea Yh | Pop-up stand assemblies for portable communications terminals |
| CN102200799A (en) * | 2010-03-22 | 2011-09-28 | 纬创资通股份有限公司 | Computer device with refractive foot pad |
| CN102426473A (en) * | 2011-11-07 | 2012-04-25 | 倪晓旺 | Notebook computer with liftable screen |
| CN103294114A (en) * | 2012-03-05 | 2013-09-11 | 富泰华工业（深圳）有限公司 | Notebook |
| TWM502868U (en) * | 2015-01-15 | 2015-06-11 | Sinher Technology Inc | Synchronous hinge composed of multiple pivoting branches |
| CN209281287U (en) * | 2018-12-29 | 2019-08-20 | 昆山刚毅精密电子科技有限公司 | The wheel intermittent rotary mechanism of casing jacking heat dissipation hinge |
-
2018
- 2018-12-29 CN CN201811643916.3A patent/CN109582093B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004287608A (en) * | 2003-03-19 | 2004-10-14 | Casio Comput Co Ltd | Lid opening device |
| TW201108702A (en) * | 2009-02-25 | 2011-03-01 | Laird Technologies Korea Yh | Pop-up stand assemblies for portable communications terminals |
| CN102200799A (en) * | 2010-03-22 | 2011-09-28 | 纬创资通股份有限公司 | Computer device with refractive foot pad |
| CN102426473A (en) * | 2011-11-07 | 2012-04-25 | 倪晓旺 | Notebook computer with liftable screen |
| CN103294114A (en) * | 2012-03-05 | 2013-09-11 | 富泰华工业（深圳）有限公司 | Notebook |
| TWM502868U (en) * | 2015-01-15 | 2015-06-11 | Sinher Technology Inc | Synchronous hinge composed of multiple pivoting branches |
| CN209281287U (en) * | 2018-12-29 | 2019-08-20 | 昆山刚毅精密电子科技有限公司 | The wheel intermittent rotary mechanism of casing jacking heat dissipation hinge |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111857285A (en) * | 2019-04-25 | 2020-10-30 | 华为技术有限公司 | Lifting mechanism and electronic equipment |
| CN111857285B (en) * | 2019-04-25 | 2022-05-10 | 华为技术有限公司 | Lifting mechanism and electronic equipment |
| US11797060B2 (en) | 2020-05-29 | 2023-10-24 | Asustek Computer Inc. | Electronic device and pivot structure thereof |
| CN114546050A (en) * | 2022-03-01 | 2022-05-27 | 紫光计算机科技有限公司 | Notebook computer |
| CN114942669A (en) * | 2022-05-18 | 2022-08-26 | 紫光计算机科技有限公司 | Lifting structure of notebook foot pad |
| CN114942669B (en) * | 2022-05-18 | 2023-08-29 | 紫光计算机科技有限公司 | Lifting structure of notebook foot pad |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109582093B (en) | 2024-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109582093A (en) | The wheel intermittent rotary mechanism of casing jacking heat dissipation hinge | |
| CN209281287U (en) | The wheel intermittent rotary mechanism of casing jacking heat dissipation hinge | |
| JP6879232B2 (en) | Rotor for tablet cassette and tablet cassette | |
| CN207309509U (en) | Numerical control machine tool changer | |
| CN109945051B (en) | Computer host convenient to remove | |
| CN110030472B (en) | Rotary guide table for outpatient service | |
| CN207334156U (en) | Scalable column is locked mechanism | |
| CN207136604U (en) | A kind of Multifunctional domestic cabinet | |
| JP2020175105A (en) | Figure display apparatus | |
| CN208021049U (en) | A kind of Art Design drawing board | |
| CN109826926A (en) | Automatic door operator and refrigerator with it | |
| CN208359755U (en) | A kind of dedicated efficient Categories Archive case of finance | |
| CN208281514U (en) | A kind of turnover type blind plate valve | |
| CN213128386U (en) | Multifunctional accommodating device for tablet personal computer | |
| CN203425497U (en) | Tile inlet door device for mahjong machine | |
| KR101875874B1 (en) | Container with auto lifting structure | |
| CN103446752B (en) | A kind of mahjong machine enters board door gear | |
| CN206621308U (en) | More bar linkage rotation towel racks | |
| CN213222285U (en) | Prevent centrifuging tube rack of empting | |
| CN205321662U (en) | Interlock mechanism and podium | |
| CN208962736U (en) | A kind of pencil sharpener chip dust slot structure | |
| CN219422453U (en) | Clothes cabinet | |
| EP4241629A1 (en) | Baby bottle warmer | |
| CN109812665A (en) | A kind of computer display multifunctional hoisting device | |
| CN209268957U (en) | A kind of archives and books management movable support frame |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |