CN107414734A - It is a kind of to switch the method and device for tightening two kinds of bolt collars - Google Patents
It is a kind of to switch the method and device for tightening two kinds of bolt collars Download PDFInfo
- Publication number
- CN107414734A CN107414734A CN201710267979.2A CN201710267979A CN107414734A CN 107414734 A CN107414734 A CN 107414734A CN 201710267979 A CN201710267979 A CN 201710267979A CN 107414734 A CN107414734 A CN 107414734A
- Authority
- CN
- China
- Prior art keywords
- hexagonal
- bolt
- chieftain
- sliding blocks
- sleeve
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
Abstract
The invention discloses the method and device that two kinds of bolt collars are tightened in a kind of switching, the device includes external hexagonal sleeve chieftain, external hexagonal sleeve chieftain is internally provided with spring and double interior hexagonal heart sliding blocks, the head sections and middle part of double interior hexagonal heart sliding blocks are interior hexagonal structure, the end segment of double interior hexagonal heart sliding blocks is fixedly connected with one end of the spring, the other end of spring is fixedly connected with torsion rifle connector, penetrability groove type through hole is also provided with double interior hexagonal heart sliding blocks, latch is studded with penetrability groove type through hole.The present invention, which is used in, tightens different bolt models（Hexagon socket head cap screw and outer-hexagonal bolt）When traditional manual switching bolt collar can be avoided according to different bolt quick automatic switchings, not only bringing convenience to operator also effectively raises production efficiency.
Description
Technical field
The present invention relates to one kind switching to tighten two kinds of bolt collar systems, is that two kinds of bolts are tightened in a kind of quick and convenient switching
The method and device of sleeve, the bolt applied to mechanical combination part tighten assembling industry.
Background technology
Need to assemble a variety of valve parts on automobile engine cylinder head casing, for detecting the operation feelings of part in cylinder head cover
Condition.But these valve assembling process need to fix by the subsidiary fixing bolt of valve, prevent valve from using by bolting on
Cheng Songdong comes off.The bolt of valve institute band is divided into two kinds, and one kind is that interior hexagonal type bolt another kind is outer-hexagonal type bolt.
Usual employee's rundown process is manually to switch two kinds of sleeve chieftains to realize that two kinds of bolts are tightened.Needed during employee's normal operation
Toggle and tighten chieftain, This move is very cumbersome.It is unfavorable for improving production production capacity.The action of frequent switching causes employee
Rundown process inconvenience also has a strong impact on production efficiency.
Based on so specific valve body assembly problem, it is necessary to which can be explored in terms of other pass through device and handoff technique
The problem of chieftain's switching is cumbersome is tightened to eliminate, reaches the effect for improving production efficiency and facilitating employee to operate.
The content of the invention
Goal of the invention：The invention aims to solve deficiency of the prior art, there is provided a kind of according to different spiral shells
Bolt quick automatic switching, traditional manual switching bolt collar is avoided, it is also effective not only to bring convenience to operator
Improve the method and device of production efficiency.
Technical scheme：The device of two kinds of bolt collars, including external hexagonal sleeve head are tightened in a kind of switching of the present invention
Son（2）, the external hexagonal sleeve chieftain（2）It is internally provided with spring（3）With double interior hexagonal heart sliding blocks（6）, described double interior six
Angle heart sliding block（6）Head sections and middle part be interior hexagonal structure, it is described it is double in hexagonal heart sliding blocks end segment and institute
State spring（3）One end be fixedly connected, the spring（3）The other end be fixedly connected with torsion rifle connector（1）, it is described double interior
Hexagonal heart sliding block（6）On be also provided with penetrability groove type through hole（5）, the penetrability groove type through hole（5）Inside stud with latch
（4）.
Further, the torsion rifle connector（1）It extend into external hexagonal sleeve chieftain（2）It is interior and be secured to connect.
Further, double interior hexagonal heart sliding blocks（6）Middle part and the external hexagonal sleeve chieftain（2）Inwall
Close fitting connects.
Further, double interior hexagonal heart sliding blocks（6）Middle part diameter be more than head sections, the diameter of end segment.
The invention also discloses a kind of above-mentioned switching application method for switching the device for tightening two kinds of bolt collars, including twist
Method and method when tightening outer-hexagonal bolt during tight hexagon socket head cap screw：
Method when tightening hexagon socket head cap screw：When assemble bolt be hexagon socket head cap screw when movement torsion rifle connector to bolt just on
Just, by external hexagonal sleeve chieftain close to hexagon socket head cap screw after position aligns, until interior hexagonal is withstood on external hexagonal sleeve chieftain head
Bolt end face, there will be two kinds of situations for now double interior hexagonal heart sliding blocks：
Situation one：The process that double interior hexagonal heart sliding blocks withstand hexagon socket head cap screw end face in outer hexagon sleeve head subheader portion is smoothly inserted
Enter the interior hexagonal inner chamber of hexagon socket head cap screw, at this moment start torsion rifle, torsion rifle passes to torsion by torsion rifle connector outer
Torsion is passed to hexagonal heart sliding block in double by Hexagonal jacket chieftain, external hexagonal sleeve chieftain again, double interior hexagonal heart sliding blocks
It is qualified that hexagon socket head cap screw is tightened in interior hexagonal part, tightens and twisting for external hexagonal sleeve chieftain completion hexagon socket head cap screw is lifted after terminating
Tight work；
Situation two：The process that double interior hexagonal heart sliding blocks withstand hexagon socket head cap screw end face in outer hexagon sleeve head subheader portion is not inserted
Enter the interior hexagonal inner chamber of hexagon socket head cap screw, double interior hexagonal heart sliding blocks are withstood at hexagon socket head cap screw chamfering, and spring is compressed；
At this moment torsion rifle is started, torsion rifle can carry out just rotation slow-speed of revolution operation at that quarter of startup, and at this moment double interior hexagonal heart sliding blocks exist
The interior hexagonal inner chamber of hexagon socket head cap screw is smoothly inserted in the presence of springback power, treats that torsion rifle just rotates slow-speed of revolution end of run
And torsion rifle stops operating after hexagon socket head cap screw is screwed into specified torque, external hexagonal sleeve chieftain completion is lifted after tightening end
Hexagon socket head cap screw tightens work；
Method when tightening outer-hexagonal bolt：When assemble bolt be outer-hexagonal bolt when movement torsion rifle connector to bolt just on
Just, by external hexagonal sleeve chieftain close to outer-hexagonal bolt after position aligns, until outer-hexagonal bolt will double interior hexagonal heart sliding blocks
Head into external hexagonal sleeve chieftain, spring is compressed；External hexagonal sleeve chieftain starts torsion rifle when entangling outer-hexagonal bolt completely,
Outer-hexagonal bolt lifts external hexagonal sleeve chieftain after being tightened by torsion rifle, when external hexagonal sleeve chieftain is away from outer-hexagonal bolt
When, double interior hexagonal heart sliding block auto-extending external hexagonal sleeve chieftains under the bounce of spring, double interior hexagonal heart sliding blocks are stretched
Going out process drives penetrability groove type through hole to slide, when penetrability groove type through hole slides into the position of latch, double interior hexagonals
Heart sliding block stops stretching out, and outer-hexagonal bolt tightens work completion.
Beneficial effect：The present invention, which is used in, tightens different bolt models（Hexagon socket head cap screw and outer-hexagonal bolt）When can basis
Different bolt quick automatic switchings, traditional manual switching bolt collar is avoided, not only brings convenience to operator
Also production efficiency is effectively raised.It is convenient and swift when Combined socket chieftain carries out two kinds of bolt tightening operations, it is automatic fast
Bolt model is tightened in speed switching.Reduce the job content of operator, allow to tighten two kinds of bolt operations easier to be quick.
Brief description of the drawings
Fig. 1 is the structural representation when present invention tightens hexagon socket head cap screw；
Fig. 2 is the structural representation when present invention tightens outer-hexagonal bolt.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the present invention is described in detail.
The device of two kinds of bolt collars, including external hexagonal sleeve chieftain 2 are tightened in a kind of switching as shown in Figure 1, described outer
Hexagonal jacket chieftain 2 is internally provided with spring 3 and double interior hexagonal heart sliding blocks 6, the head sections of double interior hexagonal heart sliding blocks 6
It is interior hexagonal structure with middle part, the end segment of double interior hexagonal heart sliding blocks is fixedly connected with one end of the spring 3,
The other end of the spring 3 is fixedly connected with torsion rifle connector 1, and penetrability is also provided with double interior hexagonal heart sliding blocks 6
Groove type through hole 5, latch 4 is studded with the penetrability groove type through hole 5.
Further optimization as above-mentioned technical proposal：
The torsion rifle connector 1 extend into external hexagonal sleeve chieftain 2 and is secured to connect, and ensures effective biography of torsion
Pass.
The middle part of double interior hexagonal heart sliding blocks 6 is connected with the inwall close fitting of the external hexagonal sleeve chieftain 2.
The middle part diameter of double interior hexagonal heart sliding blocks 6 is more than head sections, the diameter of end segment.
Fig. 1 is moved also to tighten schematic device during hexagon socket head cap screw when assembling bolt and being hexagon socket head cap screw 7 simultaneously
Torsion rifle connector 1 to directly over bolt, position align after by external hexagonal sleeve chieftain 2 close to hexagon socket head cap screw 7, until outer six
Angle sleeve chieftain 2 withstands the end face of hexagon socket head cap screw 7 in head.There will be two kinds of situations for now double interior hexagonal heart sliding blocks 6.
Situation one：Double interior hexagonal heart sliding blocks 6 withstand the mistake of the end face of hexagon socket head cap screw 7 on the outer head of Hexagonal jacket chieftain 2
Cheng Shunli inserts the interior hexagonal inner chamber of hexagon socket head cap screw 7.At this moment torsion rifle is started, torsion is passed through torsion rifle connector by torsion rifle
1 passes to external hexagonal sleeve chieftain 2, and torsion is passed to hexagonal heart sliding blocks 6 in double by external hexagonal sleeve chieftain 2 again, it is double in six
It is qualified that hexagon socket head cap screw 7 is tightened in the interior hexagonal part of angle heart sliding block 6.Tighten after end that to lift external hexagonal sleeve chieftain 2 complete
Work is tightened into hexagon socket head cap screw 7.
Situation one：Double interior hexagonal heart sliding blocks 6 withstand the mistake of the end face of hexagon socket head cap screw 7 on the outer head of Hexagonal jacket chieftain 2
Journey is not inserted into the interior hexagonal inner chamber of hexagon socket head cap screw 7.Double interior hexagonal heart sliding blocks 6 are withstood at the chamfering of hexagon socket head cap screw 7,
Spring 3 is compressed.At this moment torsion rifle is started, torsion rifle can carry out just rotating slow-speed of revolution operation at that quarter of startup, and at this moment double interior six
Angle heart sliding block 6 smoothly inserts the interior hexagonal inner chamber of hexagon socket head cap screw 7 in the presence of the bounce of spring 3.Treat that torsion rifle just revolves
Torsion rifle stops operating after turning slow-speed of revolution end of run and hexagon socket head cap screw 7 being screwed into specified torque.Lifted after tightening end
The completion hexagon socket head cap screw 7 of external hexagonal sleeve chieftain 2 tightens work.
Fig. 2 is schematic device when tightening outer-hexagonal bolt, and torsion rifle is moved when assembling bolt and being outer-hexagonal bolt 8
Connector 1 to directly over bolt, position align after by external hexagonal sleeve chieftain 2 close to outer-hexagonal bolt 8, until outer-hexagonal bolt
8 head into double interior hexagonal heart sliding blocks 6 in external hexagonal sleeve chieftain 2, and spring 3 is compressed.External hexagonal sleeve chieftain 2 entangles completely
Start torsion rifle during outer-hexagonal bolt 8, outer-hexagonal bolt 8 lifts external hexagonal sleeve chieftain 2 after being tightened by torsion rifle, when outer six
When angle sleeve chieftain 2 is away from outer-hexagonal bolt 8, double interior auto-extending outer-hexagonals under the bounce of spring 3 of hexagonal heart sliding block 6
Sleeve chieftain 2, double interior stretching processes of hexagonal heart sliding block 6 drive penetrability groove type through hole 5 to slide, when penetrability groove type leads to
When hole 5 slides into the position of latch 4, double interior hexagonal heart sliding blocks 6 stop stretching out.Outer-hexagonal bolt 8 tightens work completion.
The present invention, which is used in, tightens different bolt models（Hexagon socket head cap screw and outer-hexagonal bolt）When can be according to different spiral shells
Bolt quick automatic switching, traditional manual switching bolt collar is avoided, it is also effective not only to bring convenience to operator
Improve production efficiency.It is convenient and swift when Combined socket chieftain carries out two kinds of bolt tightening operations, it is switched fast automatically stubborn
Tight bolt model.Reduce the job content of operator, allow to tighten two kinds of bolt operations easier to be quick.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit according to the present invention
Any simple modification, equivalent change and modification made to above example, in the range of still falling within technical solution of the present invention.
Claims (5)
1. a kind of switch the device for tightening two kinds of bolt collars, it is characterised in that：Including external hexagonal sleeve chieftain（2）, it is described outer
Hexagonal jacket chieftain（2）It is internally provided with spring（3）With double interior hexagonal heart sliding blocks（6）, double interior hexagonal heart sliding blocks（6）
Head sections and middle part be interior hexagonal structure, it is described it is double in hexagonal heart sliding blocks end segment and the spring（3）One
End is fixedly connected, the spring（3）The other end be fixedly connected with torsion rifle connector（1）, double interior hexagonal heart sliding blocks
（6）On be also provided with penetrability groove type through hole（5）, the penetrability groove type through hole（5）Inside stud with latch（4）.
2. the device of two kinds of bolt collars is tightened in a kind of switching according to claim 1, it is characterised in that：The torsion rifle
Connector（1）It extend into external hexagonal sleeve chieftain（2）It is interior and be secured to connect.
3. the device of two kinds of bolt collars is tightened in a kind of switching according to claim 1, it is characterised in that：Described double interior six
Angle heart sliding block（6）Middle part and the external hexagonal sleeve chieftain（2）Inwall close fitting connection.
4. the device of two kinds of bolt collars is tightened in a kind of switching according to claim 1, it is characterised in that：Described double interior six
Angle heart sliding block（6）Middle part diameter be more than head sections, the diameter of end segment.
5. the switching user of the device of two kinds of bolt collars is tightened in a kind of switching according to claim 1-4 any one
Method, it is characterised in that：Method and method when tightening outer-hexagonal bolt during including tightening hexagon socket head cap screw：
Method when tightening hexagon socket head cap screw：When assemble bolt be hexagon socket head cap screw when movement torsion rifle connector to bolt just on
Just, by external hexagonal sleeve chieftain close to hexagon socket head cap screw after position aligns, until interior hexagonal is withstood on external hexagonal sleeve chieftain head
Bolt end face, there will be two kinds of situations for now double interior hexagonal heart sliding blocks：
Situation one：The process that double interior hexagonal heart sliding blocks withstand hexagon socket head cap screw end face in outer hexagon sleeve head subheader portion is smoothly inserted
Enter the interior hexagonal inner chamber of hexagon socket head cap screw, at this moment start torsion rifle, torsion rifle passes to torsion by torsion rifle connector outer
Torsion is passed to hexagonal heart sliding block in double by Hexagonal jacket chieftain, external hexagonal sleeve chieftain again, double interior hexagonal heart sliding blocks
It is qualified that hexagon socket head cap screw is tightened in interior hexagonal part, tightens and twisting for external hexagonal sleeve chieftain completion hexagon socket head cap screw is lifted after terminating
Tight work；
Situation two：The process that double interior hexagonal heart sliding blocks withstand hexagon socket head cap screw end face in outer hexagon sleeve head subheader portion is not inserted
Enter the interior hexagonal inner chamber of hexagon socket head cap screw, double interior hexagonal heart sliding blocks are withstood at hexagon socket head cap screw chamfering, and spring is compressed；
At this moment torsion rifle is started, torsion rifle can carry out just rotation slow-speed of revolution operation at that quarter of startup, and at this moment double interior hexagonal heart sliding blocks exist
The interior hexagonal inner chamber of hexagon socket head cap screw is smoothly inserted in the presence of springback power, treats that torsion rifle just rotates slow-speed of revolution end of run
And torsion rifle stops operating after hexagon socket head cap screw is screwed into specified torque, external hexagonal sleeve chieftain completion is lifted after tightening end
Hexagon socket head cap screw tightens work；
Method when tightening outer-hexagonal bolt：When assemble bolt be outer-hexagonal bolt when movement torsion rifle connector to bolt just on
Just, by external hexagonal sleeve chieftain close to outer-hexagonal bolt after position aligns, until outer-hexagonal bolt will double interior hexagonal heart sliding blocks
Head into external hexagonal sleeve chieftain, spring is compressed；External hexagonal sleeve chieftain starts torsion rifle when entangling outer-hexagonal bolt completely,
Outer-hexagonal bolt lifts external hexagonal sleeve chieftain after being tightened by torsion rifle, when external hexagonal sleeve chieftain is away from outer-hexagonal bolt
When, double interior hexagonal heart sliding block auto-extending external hexagonal sleeve chieftains under the bounce of spring, double interior hexagonal heart sliding blocks are stretched
Going out process drives penetrability groove type through hole to slide, when penetrability groove type through hole slides into the position of latch, double interior hexagonals
Heart sliding block stops stretching out, and outer-hexagonal bolt tightens work completion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267979.2A CN107414734A (en) | 2017-04-22 | 2017-04-22 | It is a kind of to switch the method and device for tightening two kinds of bolt collars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267979.2A CN107414734A (en) | 2017-04-22 | 2017-04-22 | It is a kind of to switch the method and device for tightening two kinds of bolt collars |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107414734A true CN107414734A (en) | 2017-12-01 |
Family
ID=60423279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710267979.2A Pending CN107414734A (en) | 2017-04-22 | 2017-04-22 | It is a kind of to switch the method and device for tightening two kinds of bolt collars |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107414734A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108634A (en) * | 2018-09-27 | 2019-01-01 | 合肥巨智能装备有限公司 | A kind of workpiece tightens omnipotent rotation preventive mechanism and master subtracts gear rotation stop tightening mechanism |
| CN109654103A (en) * | 2019-01-04 | 2019-04-19 | 浙江万向系统有限公司 | A kind of M6 and M10 bolt quick switching joint |
| CN110124946A (en) * | 2019-06-19 | 2019-08-16 | 广州信邦智能装备股份有限公司 | A kind of automatic glue spreading device |
| CN110253478A (en) * | 2019-06-21 | 2019-09-20 | 长春涵智科技有限公司 | The compound sleeve of self-floating |
| CN110576629A (en) * | 2019-09-17 | 2019-12-17 | 巨轮智能装备股份有限公司 | Automatic quick assembly disassembly mould mechanism of vulcanizer |
| CN113483001A (en) * | 2021-06-28 | 2021-10-08 | 成都飞机工业（集团）有限责任公司 | Quick positioning bolt locking device |
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| FR2438528A1 (en) * | 1978-10-09 | 1980-05-09 | Cahen Gilbert | Auto-disengaging key for lathe chuck - has tommy bar with allen key tip sliding in sleeve and coil spring to hold key retracted in sleeve |
| CN86201506U (en) * | 1986-03-27 | 1987-02-04 | 刘世雄 | Universal sleeve spanner |
| JPH06198570A (en) * | 1993-01-06 | 1994-07-19 | Fujikura Ltd | Box wrench and bolt exclusively used therefor |
| CN2225938Y (en) * | 1995-05-19 | 1996-05-01 | 黄旭纲 | Combined wrench |
| CN2486279Y (en) * | 2001-05-15 | 2002-04-17 | 刘红军 | Multifunction spanner |
| CN2803633Y (en) * | 2005-06-18 | 2006-08-09 | 比亚迪股份有限公司 | Fastener for bolt |
| CN203510032U (en) * | 2013-09-20 | 2014-04-02 | 林群富 | Integrated inner and outer hexagonal sleeve wrench |
-
2017
- 2017-04-22 CN CN201710267979.2A patent/CN107414734A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2438528A1 (en) * | 1978-10-09 | 1980-05-09 | Cahen Gilbert | Auto-disengaging key for lathe chuck - has tommy bar with allen key tip sliding in sleeve and coil spring to hold key retracted in sleeve |
| CN86201506U (en) * | 1986-03-27 | 1987-02-04 | 刘世雄 | Universal sleeve spanner |
| JPH06198570A (en) * | 1993-01-06 | 1994-07-19 | Fujikura Ltd | Box wrench and bolt exclusively used therefor |
| CN2225938Y (en) * | 1995-05-19 | 1996-05-01 | 黄旭纲 | Combined wrench |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108634A (en) * | 2018-09-27 | 2019-01-01 | 合肥巨智能装备有限公司 | A kind of workpiece tightens omnipotent rotation preventive mechanism and master subtracts gear rotation stop tightening mechanism |
| CN109654103A (en) * | 2019-01-04 | 2019-04-19 | 浙江万向系统有限公司 | A kind of M6 and M10 bolt quick switching joint |
| CN109654103B (en) * | 2019-01-04 | 2023-09-15 | 浙江万向系统有限公司 | M6 and M10 bolt quick-operation joint |
| CN110124946A (en) * | 2019-06-19 | 2019-08-16 | 广州信邦智能装备股份有限公司 | A kind of automatic glue spreading device |
| CN110253478A (en) * | 2019-06-21 | 2019-09-20 | 长春涵智科技有限公司 | The compound sleeve of self-floating |
| CN110253478B (en) * | 2019-06-21 | 2024-01-23 | 长春涵智科技有限公司 | Self-floating duplex sleeve |
| CN110576629A (en) * | 2019-09-17 | 2019-12-17 | 巨轮智能装备股份有限公司 | Automatic quick assembly disassembly mould mechanism of vulcanizer |
| CN113483001A (en) * | 2021-06-28 | 2021-10-08 | 成都飞机工业（集团）有限责任公司 | Quick positioning bolt locking device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |
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| RJ01 | Rejection of invention patent application after publication |