CN103456316A - Tool set with magnetic head separation supporting frame and for disassembly and transplantation of 2.5-cun mechanical hard disk magnetic head assembly and use method thereof - Google Patents
Tool set with magnetic head separation supporting frame and for disassembly and transplantation of 2.5-cun mechanical hard disk magnetic head assembly and use method thereof Download PDFInfo
- Publication number
- CN103456316A CN103456316A CN2013103888439A CN201310388843A CN103456316A CN 103456316 A CN103456316 A CN 103456316A CN 2013103888439 A CN2013103888439 A CN 2013103888439A CN 201310388843 A CN201310388843 A CN 201310388843A CN 103456316 A CN103456316 A CN 103456316A
- Authority
- CN
- China
- Prior art keywords
- head
- magnetic head
- stack
- support
- head stack
- 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
Images
Abstract
The invention discloses a tool set with a magnetic head separation supporting frame and for disassembly and transplantation of a 2.5-cun mechanical hard disk magnetic head assembly and a use method of the tool set and relates to disassembly and transplantation of the 2.5-cun mechanical hard disk magnetic head assembly. The tool set with the magnetic head separation supporting frame and for disassembly and transplantation of the 2.5-cun mechanical hard disk magnetic head assembly solves the problems that due to the fact that an existing tool is not provided with a device and an instrument which are used for holding the magnetic head assembly, a magnetic head support deforms due to scraping and collision or adhesion of a magnetic head occurs and solves the problem that due to the fact that a use method of the existing tool is complicated and difficult, and the work efficiency is low. One end of a handle of the magnetic head separation supporting frame is fixed to the bottom of a separation assembly of the magnetic head support. A magnetic head assembly holding platform comprises a platform base, a magnetic head assembly fixing rod, a magnetic head assembly tray and two front-end drive circuit brackets, wherein the magnetic separation supporting frame is arranged in a groove of the platform base. The magnetic head separation supporting frame is used for disassembly of the magnetic head assembly, and the disassembled magnetic head assembly is placed on the magnetic head assembly holding platform. The tool set is suitable for disassembly and transplantation of the 2.5-cun mechanical hard disk magnetic head assembly.
Description
Technical field
The present invention relates to dismounting and the transplanting of 2.5 cun mechanical type hard disk head components.
Background technology
At present, 2.5 cun mechanical type hard disks occupy considerable status on market, and for most notebook computers, portable hard drive etc., this hard disk is all used in its inside.Along with the development of 2.5 cun mechanical type seagates, relevant supporting data management system and technical merit development at present is suitable perfect.This hard-disc storage amount is large, and read or write speed is very fast, and information recording is stable, has advantages of that the other types storage medium is difficult to alternative, therefore is widely applied.Exactly because it is on the portable sets such as notebook computer, portable hard drive that 2.5 cun mechanical type hard disks are mainly applied, in the routine use process this type of mobile memory medium there will be unavoidably fall, collide with, the situation such as voltage instability.2.5 very little mechanical type hard disk, in when work, only has the distance of 1 micron of less than between the disc of magnetic head and High Rotation Speed, therefore in the hard disk power down, shake, the situation such as equipment voltage instability, very likely can cause the damage of hard disk.
When disk, when there was a mechanical failure, the part situation need to, by transplanting the method for magnetic head or disc, be carried out the data recovery to hard disk.At head stack dismounting, temporarily putting and during whole process is installed, the new magnetic head of changing can not be in contact with one another with other any article, new replacing magnetic head and head suspension can not have any deformation, and in the process of changing, guarantee head suspension front end, opening quotation instrument, and operating personnel's finger can not scratch disc.At present, be all to adopt manual mode, head stack and disc transplanting are dismantled and transplanted, operate successful probability low, and too depend on operator's skills involved in the labour.For the normally used 3.5 cun hard disks of desktop computer, in disk body, space is relatively large, and a plurality of magnetic head distances between the magnetic head group are relatively far away, operate easily.Yet, for 2.5 cun hard disks, its inner space is very narrow, between head stack and disc, distance is too tight.Even the operator is skilled in technique, moves careful, also be difficult to guarantee success ratio.If for 2.5 cun hard disks that a plurality of video discs are arranged, substantially can not adopt the method dismounting of general artificial opening quotation and transplant magnetic head.In the head stack migration process, also there is no at present suitable interim accommodation device and equipment, usually occur to deposit head suspension scratching in process temporarily and deformation occurs, or occurring that magnetic head adhesion, magnetic head are by situations such as contamination by dusts, greatly reducing the probability that data are successfully recovered.
Summary of the invention
The present invention is in order to solve existing hard disk head component dismounting and transplanting tool due to the device and the equipment that there is no suitable placement head stack, cause the head suspension scratching and deformation occur or the situation of magnetic head adhesion occurs, using method due to existing instrument is too complicated and difficult simultaneously, cause ineffective problem, proposed to separate with magnetic head Tool Box and the using method thereof for 2.5 cun mechanical type hard disk head component dismountings and transplanting of support.
Magnetic head separates support, comprises head suspension separating component and handle, and a side of head suspension separating component is equiped with M and locates wedge, and M equals 1 or 2, handle be shaped as sheet, an end of handle and the bottom of head suspension separating component are fixed.
The Tool Box for 2.5 cun mechanical type hard disk head component dismountings and transplanting that separates support with magnetic head, it also comprises the head stack placement platform, described head stack placement platform comprises platform base, the head stack fixed bar, head stack pallet and two front-end driven circuit carriages, the head stack fixed bar is vertically fixed on the upper surface of platform base by connecting link and buckle, head stack fixed bar and connecting link are right cylinder, and the diameter of connecting link is greater than the diameter of head stack fixed bar, the diameter of head stack pallet is greater than the diameter of connecting link, the center of head stack pallet has through hole, and the equal diameters of the diameter of this through hole and head stack fixed bar, the head stack fixed bar is fixed through through hole and the connecting link at head stack pallet center, each front-end driven circuit carriage includes front-end driven circuit tray and P front-end driven circuit fixing rod of bracket, P is positive integer, the front-end driven circuit tray is vertically fixed on the upper surface of platform base by P front-end driven circuit fixing rod of bracket and buckle, two front-end driven circuit carriages are about place, the axis plane symmetry of head stack fixed bar, two front-end driven circuit trays all form angle with the plane, place, axis of head stack fixed bar, the distance of the perigee distance platform base of two front-end driven circuit trays equates with the distance of the upper surface of head stack pallet apart from platform base, described platform base has groove, magnetic head separates support and is accommodated in described groove.
A kind of using method of the Tool Box for 2.5 cun mechanical type hard disk head component dismountings and transplanting is realized by following steps:
Step 1, the hard disk model that basis is to be opened the set, the magnetic head that selection is complementary with hard disk model to be opened the set separates support, head arm with the left hand Fixed disk, the right hand pinches the handle that magnetic head separates support, and the location wedge that magnetic head is separated to the head suspension separating component of support aligns with the middle position of the head suspension of 2.5 cun mechanical type hard disc magnetic head rear ends;
Step 2, to keep magnetic head to separate support motionless, stir the head arm of hard disk, the head suspension that makes the head arm front end from undercarriage slip into magnetic head separate support the head suspension separating component the location wedge both sides and continue to slide into magnetic head and separate the handle of support and the connecting portion of head suspension separating component;
Step 3, to keep magnetic head to separate support motionless, and the hand of fixed head arm is removed from head arm, then uses tweezers that head arm is clamped, and two hands are upwards mentioned along vertical direction simultaneously, thereby realize the dismantlement work of head stack;
Step 4, keep the relative position of two hands constant, by head stack move to the head stack placement platform directly over, then move down, the front-end driven circuit of head stack is placed on the driving circuit pallet of head stack placement platform, by the shaft hole sleeve of head stack on the head stack fixed bar of head stack placement platform, and continue to move down, until whole head stack is placed on the head stack pallet, maintenance magnetic head separation support contacts with head stack, magnetic head is separated to support to be put in the middle of two spaces between the front-end driven circuit tray, thereby realize the placement work of head stack,
Beneficial effect: magnetic head separation support and head stack placement platform that the present invention proposes are simple in structure, easy operating, and simultaneously, using method of the present invention is simple, easy, and single dismounting and the transplanting that just can complete magnetic head, improved work efficiency, simultaneously by the head stack fixed bar of head stack placement platform, the position relationship of head stack pallet and two front-end driven circuit carriages, can guarantee stable being placed on the head stack placement platform of head stack, simultaneously head suspension can not occur because scratching produces the situation that adhesion appears in deformation and magnetic head, can also make circuit on magnetic head and head arm avoid damaging, utilize two formed angles of front-end driven circuit tray, and leave ventilation voids between two front-end driven circuit trays, can make head stack be subject to the impact of dust to reduce more than one times.
The accompanying drawing explanation
Fig. 1 is the structural representation that magnetic head separates support;
The right view that Fig. 2 is Fig. 1;
The front elevation that Fig. 3 is Fig. 1;
The structural representation that Fig. 4 is the head stack placement platform;
The right view that Fig. 5 is Fig. 4;
The vertical view that Fig. 6 is Fig. 4.
Embodiment
Embodiment one, in conjunction with Fig. 1, this embodiment is described, magnetic head separates support, it comprises that magnetic head separates support, described magnetic head separates support and comprises head suspension separating component 2 and handle 1, a side of head suspension separating component 2 is equiped with M location wedge 3, M equals 1 or 2, handle 1 be shaped as sheet, an end of handle 1 and the bottom of head suspension separating component 2 are fixed.
In present embodiment, it is a plurality of according to the type design of disk that magnetic head separates support, according to the model of disk, selects the magnetic head be complementary with it to separate support and is dismantled.
In present embodiment, magnetic head separation strut configuration is simple, easy operating, handle 1 is flat sheet, and handle 1 is offset to the right, meets the custom of right-hand operated, and can not blocked operator's sight line, add slip-resistant texture, hommization more at handle 1 simultaneously.
In present embodiment, the surface of wedge is smooth, can make like this head suspension successfully slip over the connecting portion that wedge arrives handle 1 and head suspension separating component 2.
Embodiment two, present embodiment be with the difference that the described magnetic head of embodiment one separates support, and the material that magnetic head separates support is PE.
Embodiment three, present embodiment be with the difference that the described magnetic head of embodiment one separates support, and it is 1.4mm-1.5mm that M equals 2, two distances between the wedges 3 of location.
Embodiment four, in conjunction with Fig. 4, this embodiment is described, the Tool Box for 2.5 cun mechanical type hard disk head component dismountings and transplanting that separates support with the described magnetic head of embodiment one, it also comprises the head stack placement platform, described head stack placement platform comprises platform base 7, head stack fixed bar 4, head stack pallet 5 and two front-end driven circuit carriages, head stack fixed bar 4 is vertically fixed on the upper surface of platform base 7 by connecting link 6 and buckle, head stack fixed bar 4 and connecting link 6 are right cylinder, and the diameter of connecting link 6 is greater than the diameter of head stack fixed bar 4, the diameter of head stack pallet 5 is greater than the diameter of connecting link 6, the center of head stack pallet 5 has through hole, and the equal diameters of the diameter of this through hole and head stack fixed bar 4, head stack fixed bar 4 is fixing through through hole and the connecting link 6 at head stack pallet 5 centers, each front-end driven circuit carriage includes front-end driven circuit tray 9 and P front-end driven circuit fixing rod of bracket 8, P is positive integer, front-end driven circuit tray 9 is vertically fixed on the upper surface of platform base 7 by P front-end driven circuit fixing rod of bracket 8 and buckle, two front-end driven circuit carriages are about place, the axis plane symmetry of head stack fixed bar 4, two front-end driven circuit trays 9 all form angle with the plane, place, axis of head stack fixed bar 4, the distance of the perigee distance platform base 7 of two front-end driven circuit trays 9 equates with the distance of the upper surface of head stack pallet 5 apart from platform base 7, described platform base 7 has groove, magnetic head separates support and is accommodated in described groove.
In present embodiment, two front-end driven circuit trays 9 all form angle with the plane, place, axis of head stack fixed bar 4, and the ventilation voids left between two front-end driven circuit trays 9, while making pure air blow over from the top down, the dust adhered on head stack can be blown away, the impact that head stack is subject to dust can be reduced.
The described difference for 2.5 cun mechanical type hard disk head components dismountings and the Tool Box transplanted that separates support with magnetic head of embodiment five, this embodiment and embodiment four is, platform base 7 adopts stainless steel materials.
The described difference for 2.5 cun mechanical type hard disk head components dismountings and the Tool Box transplanted that separates support with magnetic head of embodiment six, this embodiment and embodiment four is, the material of head stack fixed bar 4, head stack pallet 5 and front-end driven circuit carriage is PE.
The described difference for 2.5 cun mechanical type hard disk head components dismountings and the Tool Box transplanted that separates support with magnetic head of embodiment seven, this embodiment and embodiment four is, the angle that the plane, place, axis of two front-end driven circuit trays 9 and head stack fixed bar 4 forms angle is 60 °-75 °.
Scratching, can not occur while making head stack be placed on front-end driven circuit tray 9 in the smooth surface of two front-end driven circuit trays 9 described in present embodiment, makes dust can't rest on front-end driven circuit tray 9 simultaneously.
The described difference that separates the using method for 2.5 cun mechanical type hard disk head components dismountings and the Tool Box transplanted of support with magnetic head of embodiment eight, this embodiment and embodiment four to seven any one is, it is realized by following steps:
Step 1, the hard disk model that basis is to be opened the set, the magnetic head that selection is complementary with hard disk model to be opened the set separates support, head arm with the left hand Fixed disk, the right hand pinches the handle 1 that magnetic head separates support, and the location wedge 3 that magnetic head is separated to the head suspension separating component 2 of support aligns with the middle position of the head suspension of 2.5 cun mechanical type hard disc magnetic head rear ends;
Step 2, to keep magnetic head to separate support motionless, stir the head arm of hard disk, the head suspension that makes the head arm front end from undercarriage slip into magnetic head separate support head suspension separating component 2 location wedge 3 both sides and continue to slide into magnetic head and separate the handle 1 of support and the connecting portion of head suspension separating component 2;
Step 3, to keep magnetic head to separate support motionless, and the hand of fixed head arm is removed from head arm, then uses tweezers that head arm is clamped, and two hands are upwards mentioned along vertical direction simultaneously, thereby realize the dismantlement work of head stack;
Step 4, keep the relative position of two hands constant, by head stack move to the head stack placement platform directly over, then move down, the front-end driven circuit of head stack is placed on the driving circuit pallet of head stack placement platform, by the shaft hole sleeve of head stack on the head stack fixed bar 4 of head stack placement platform, and continue to move down, until whole head stack is placed on head stack pallet 5, maintenance magnetic head separation support contacts with head stack, magnetic head is separated to support to be put in the middle of two spaces between front-end driven circuit tray 9, thereby realize the placement work of head stack,
Claims (8)
1. magnetic head separates support, it is characterized in that, it comprises head suspension separating component (2) and handle (1), a side of head suspension separating component (2) is equiped with M location wedge (3), M equals 1 or 2, handle (1) be shaped as sheet, the bottom of an end of handle (1) and head suspension separating component (2) is fixed.
2. magnetic head according to claim 1 separates support, it is characterized in that, the material that magnetic head separates support is PE.
3. magnetic head according to claim 1 separates support, it is characterized in that, the distance that M equals between 2, two location wedges (3) is 1.4mm-1.5mm.
4. separate the Tool Box for 2.5 cun mechanical type hard disk head component dismountings and transplanting of support with magnetic head claimed in claim 1, it is characterized in that, it also comprises the head stack placement platform, described head stack placement platform comprises platform base (7), head stack fixed bar (4), head stack pallet (5) and two front-end driven circuit carriages, head stack fixed bar (4) is vertically fixed on the upper surface of platform base (7) by connecting link (6) and buckle, head stack fixed bar (4) and connecting link (6) are right cylinder, and the diameter of connecting link (6) is greater than the diameter of head stack fixed bar (4), the diameter of head stack pallet (5) is greater than the diameter of connecting link (6), the center of head stack pallet (5) has through hole, and the equal diameters of the diameter of this through hole and head stack fixed bar (4), head stack fixed bar (4) is fixing through through hole and the connecting link (6) at head stack pallet (5) center, each front-end driven circuit carriage includes front-end driven circuit tray (9) and P front-end driven circuit fixing rod of bracket (8), P is positive integer, front-end driven circuit tray (9) is vertically fixed on the upper surface of platform base (7) by P front-end driven circuit fixing rod of bracket (8) and buckle, two front-end driven circuit carriages are about place, the axis plane symmetry of head stack fixed bar (4), two front-end driven circuit trays (9) all form angle with the plane, place, axis of head stack fixed bar (4), the distance of the perigee distance platform base (7) of two front-end driven circuit trays (9) equates with the distance of the upper surface of head stack pallet (5) apart from platform base (7), described platform base (7) has groove, magnetic head separates support and is accommodated in described groove.
5. the Tool Box for 2.5 cun mechanical type hard disk head component dismountings and transplanting that separates support with magnetic head according to claim 4, is characterized in that, platform base (7) adopts stainless steel material.
According to claim 4 with magnetic head separate support for 2.5 cun mechanical type hard disk head components dismountings and the Tool Box transplanted, it is characterized in that, the material of head stack fixed bar (4), head stack pallet (5) and front-end driven circuit carriage is PE.
According to claim 4 with magnetic head separate support for 2.5 cun mechanical type hard disk head components dismountings and the Tool Box transplanted, it is characterized in that, two front-end driven circuit trays (9) are 60 °-75 ° with the angle of plane, place, the axis formation angle of head stack fixed bar (4).
8. according to the described using method of separating the Tool Box for 2.5 cun mechanical type hard disk head component dismountings and transplanting of support with magnetic head of claim 4-7 any one, it is characterized in that, it is realized by following steps:
Step 1, the hard disk model that basis is to be opened the set, the magnetic head that selection is complementary with hard disk model to be opened the set separates support, head arm with the left hand Fixed disk, the right hand pinches the handle (1) that magnetic head separates support, and the location wedge (3) that magnetic head is separated to the head suspension separating component (2) of support aligns with the middle position of the head suspension of 2.5 cun mechanical type hard disc magnetic head rear ends;
Step 2, to keep magnetic head to separate support motionless, stir the head arm of hard disk, the head suspension that makes the head arm front end from undercarriage slip into magnetic head separate support head suspension separating component (2) location wedge (3) both sides and continue to slide into magnetic head and separate the handle (1) of support and the connecting portion of head suspension separating component (2);
Step 3, to keep magnetic head to separate support motionless, and the hand of fixed head arm is removed from head arm, then uses tweezers that head arm is clamped, and two hands are upwards mentioned along vertical direction simultaneously, thereby realize the dismantlement work of head stack;
Step 4, keep the relative position of two hands constant, by head stack move to the head stack placement platform directly over, then move down, the front-end driven circuit of head stack is placed on the driving circuit pallet of head stack placement platform, by the shaft hole sleeve of head stack on the head stack fixed bar (4) of head stack placement platform, and continue to move down, until whole head stack is placed on head stack pallet (5), maintenance magnetic head separation support contacts with head stack, magnetic head is separated to support to be put in the middle of the space between two front-end driven circuit trays (9), thereby realize the placement work of head stack,
Step 5, with the right hand, pinch the handle (1) that magnetic head separates support, left hand is clamped head arm by tweezers, keep the relative position of two hands constant, head stack removed from the head stack placement platform, and by the shaft hole sleeve of head stack on the reference column of disk to be transplanted;
Step 6, voice coil loudspeaker voice coil is removed and buttressed to tweezers from head arm, the head suspension separating component (2) that magnetic head is separated to support aligns with the undercarriage of magnetic head;
Step 7, to keep magnetic head to separate support motionless, swings voice coil loudspeaker voice coil, and the handle (1) that makes head suspension separate support from magnetic head slides into undercarriage, completes the transplanting of head stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310388843.9A CN103456316B (en) | 2013-08-30 | 2013-08-30 | The Tool Box dismantled for 2.5 cun of mechanical type hard disk head components and transplant and using method thereof with magnetic head separation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310388843.9A CN103456316B (en) | 2013-08-30 | 2013-08-30 | The Tool Box dismantled for 2.5 cun of mechanical type hard disk head components and transplant and using method thereof with magnetic head separation support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103456316A true CN103456316A (en) | 2013-12-18 |
| CN103456316B CN103456316B (en) | 2016-08-10 |
Family
ID=49738611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310388843.9A Active CN103456316B (en) | 2013-08-30 | 2013-08-30 | The Tool Box dismantled for 2.5 cun of mechanical type hard disk head components and transplant and using method thereof with magnetic head separation support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103456316B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761978A (en) * | 2014-02-11 | 2014-04-30 | 韩松峰 | Hard disc magnetic head separator |
| CN109048775A (en) * | 2018-10-24 | 2018-12-21 | 中国人民解放军61660部队 | Mechanical hard disk magnet safety mechanical driver-extractor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110249359A1 (en) * | 2010-04-08 | 2011-10-13 | Masafumi Mochizuki | Magnetic head having an asymmetrical shape and systems thereof |
| CN103223657A (en) * | 2013-04-07 | 2013-07-31 | 福建伊时代信息科技股份有限公司 | Magnetic head assembling and disassembling tool |
| CN203480830U (en) * | 2013-08-30 | 2014-03-12 | 国家电网公司 | Magnetic head separation rack and tool set with same |
-
2013
- 2013-08-30 CN CN201310388843.9A patent/CN103456316B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110249359A1 (en) * | 2010-04-08 | 2011-10-13 | Masafumi Mochizuki | Magnetic head having an asymmetrical shape and systems thereof |
| CN103223657A (en) * | 2013-04-07 | 2013-07-31 | 福建伊时代信息科技股份有限公司 | Magnetic head assembling and disassembling tool |
| CN203480830U (en) * | 2013-08-30 | 2014-03-12 | 国家电网公司 | Magnetic head separation rack and tool set with same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761978A (en) * | 2014-02-11 | 2014-04-30 | 韩松峰 | Hard disc magnetic head separator |
| CN109048775A (en) * | 2018-10-24 | 2018-12-21 | 中国人民解放军61660部队 | Mechanical hard disk magnet safety mechanical driver-extractor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103456316B (en) | 2016-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1215474C (en) | Disk device | |
| CN104793708A (en) | Servo device | |
| CN103456316A (en) | Tool set with magnetic head separation supporting frame and for disassembly and transplantation of 2.5-cun mechanical hard disk magnetic head assembly and use method thereof | |
| CN212046589U (en) | A convertible blackboard for sports teaching | |
| CN203480830U (en) | Magnetic head separation rack and tool set with same | |
| CN103193201B (en) | Device and method for flexibly transferring micro-level particles | |
| JP2007044280A5 (en) | ||
| CN203418494U (en) | Detaching and transplanting tool for Winchester hard-disk magnetic heads | |
| CN103406870B (en) | Disassembly and migration tool for Winchester hard disc magnetic head and use method thereof | |
| CN108724226B (en) | Screw type information storage entity piece clamping manipulator and method | |
| CN203624506U (en) | Turnover device for glass substrate | |
| CN104015155B (en) | A kind of for the dismounting of Winchester disk disc, the instrument installed and put and using method thereof | |
| CN203875831U (en) | Tool for demounting, mounting and placing Winchester hard disk chips | |
| CN210701485U (en) | Cleaning tool for Winchester hard disk | |
| CN206544282U (en) | Taking-up and flush mounting for injecting products | |
| CN215882587U (en) | Back adhesive sticking device for mobile phone display screen | |
| CN104015163B (en) | A kind of for the dismounting of mechanical type hard disc, the instrument installed and put and using method thereof | |
| CN214275096U (en) | Multimedia lifting demonstration equipment | |
| CN216133525U (en) | Chinese teaching presentation device | |
| CN202161336U (en) | B-type ultrasonography probe carriage | |
| CN216277008U (en) | BIM-based adjustable support for building construction | |
| CN214315589U (en) | Damping device of English pronunciation public address equipment | |
| CN212456050U (en) | Achievements display device for digital media convenient to use | |
| CN1307640C (en) | Optical disk holder and optical disk box | |
| CN212399078U (en) | Cylindrical mirror substrate polishing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shang Fang Inventor after: Zhang Tong Inventor after: Wang Xiaoyu Inventor after: Liu Sheng Inventor after: Zhong Zhichen Inventor after: Song Hangxuan Inventor before: Shang Fang Inventor before: Zhang Tong Inventor before: Wang Xiaoyu Inventor before: Liu Sheng Inventor before: Zhong Zhichen Inventor before: Song Hangxuan |
|
| COR | Change of bibliographic data |