CN106884836A - It is a kind of to expand formula expansion bolt certainly - Google Patents
It is a kind of to expand formula expansion bolt certainly Download PDFInfo
- Publication number
- CN106884836A CN106884836A CN201710249452.7A CN201710249452A CN106884836A CN 106884836 A CN106884836 A CN 106884836A CN 201710249452 A CN201710249452 A CN 201710249452A CN 106884836 A CN106884836 A CN 106884836A
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- China
- Prior art keywords
- expansion
- screw
- externally threaded
- expansion column
- push rod
- 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
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- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000005457 optimization Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 206010013911 Dysgeusia Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/045—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front having axially compressing parts allowing the clamping of an object tightly to the wall
Abstract
The present invention discloses a kind of from expansion formula expansion bolt, one end is provided with externally threaded screw rod, the screw rod include being provided with the axial direction the screw body of blind hole with screw body away from external screw thread one end multiple expansion columns being hinged and the push rod that blind hole size is matched, be arranged on the connecting rod that screw body is hinged with expansion column and push rod respectively away from externally threaded one end and expansion column quantity identical first through hole and through first through hole；The blind hole is additionally provided with the gripping mechanism for driving push rod movement near the externally threaded side of screw body.The present invention is provided with push rod, connecting rod and expansion column, by push rod, connecting rod and expansion column with the use of can effectively realize expansion, while after the completion of use, can take out and be reused；Being provided with return spring can be automatically obtained the return of push rod；Expansion column can be placed in the first groove by the first groove so that the design storage is simple；It is simple structure, practical.
Description
Technical field
It is a kind of expansion formula expansion bolt certainly specifically the present invention relates to expansion bolt technical field.
Background technology
At present, common expansion bolt is constructed by traction screw, expansion sleeve, pad, spring washer, the nut of cone-shaped end.
Expansion set is all filled in the circular hole of the go-no-go being drilled on wall in advance when using, and nut is constantly tightened when using so that
Screwing force is delivered to expansion set by packing ring, pad, and center bolt is pulled out against from expansion set, the center with circular conical surface design
The spreading of expansion set is made expansion bolt firmly be stuck in circular hole by screw end head.But after fixed position is discarded, due to expansion
Bolt expansion set has deformed and has been stuck in hole in fastening, simultaneously because expansion set puts forth effort position without external, it is impossible to which expansion set is taken out, from
And discarded expansion bolt cannot be taken out, so as to be exposed to matrix surface, influence matrix surface is attractive in appearance, while also resulting in matrix surface
Potential safety hazard, the single use of expansion bolt also result in ample resources waste.
The content of the invention
Can be reused from expansion formula expansion bolt it is an object of the invention to provide a kind of, simple structure is practical.
The present invention is achieved through the following technical solutions：It is a kind of from expanding formula expansion bolt, including one end be provided with it is externally threaded
Screw rod, the screw rod includes that the screw body and screw body that are provided with blind hole in the axial direction are hinged away from external screw thread one end
Multiple expansion columns and the push rod that blind hole size is matched, be arranged on screw body away from externally threaded one end and expansion column quantity
Identical first through hole and the connecting rod being hinged with expansion column and push rod respectively through first through hole；The blind hole is near screw rod
The externally threaded side of main body is additionally provided with the gripping mechanism for driving push rod movement.
Operation principle：In use, control push rod externally threaded away from screw body to blind hole by gripping mechanism
One side shifting, connecting rod will be made to externally threaded away from screw body in the case where push rod is moved with the connecting rod that push rod is hinged
One side shifting so that opened with the expansion column that connecting rod is hinged, after expansion column is opened, the free end of expansion column will connect with aperture wall
Touch so that screw body is contacted with aperture wall realizes that expansion bolt is firmly stuck in hole.
Further, in order to preferably realize the present invention, the blind hole is provided with internal thread institute near externally threaded one end
State screw rod；The gripping mechanism includes the regulating bolt used cooperatively with blind hole internal thread.
Further, in order to preferably realize the present invention, the blind hole is provided with spring near one end of expansion column.
Regulating bolt, near the externally threaded end thereof contacts of screw body, when forward direction tightens regulating bolt, is adjusted with push rod
Screw is to the lateral movement driving push rod of expansion column one to the lateral movement of expansion column one so that be not in card after expansion column and hole clamping
It is tight not in place.Set spring can realize when expansion bolt is taken out, during due to using, push rod to the side shifting of expansion column one,
So that push rod is compressed effect to spring near one end of expansion column, and during using completing to take out expansion bolt, regulating bolt side
To twisting, spring is returning to reset condition from impaction state so that push rod is to the side shifting away from expansion column；Push rod is moved
Expansion column will be driven to move downward so that expansion column and hole no longer clamping, so that expansion bolt takes out from hole.
Further, in order to preferably realize the present invention, the spring is return spring.Aftertaste spring morning thrust removal
Afterwards, joint element is made to return to the spring of position.
Further, in order to preferably realize the present invention, the expansion column is provided with second near the side of first through hole
Groove, the connecting rod is column articulated with expansion through the second groove.Second groove enables connecting rod near one end of expansion column
Enough it is placed in the second groove.
Further, in order to preferably realize the present invention, the screw body is additionally provided with chi away from externally threaded side
The first groove that very little, position matches with expansion column, the expansion column is installed in the first groove and is hinged with screw body.Set the
One groove enables that expansion column is perfectly put into the first groove, when not in use so that expansion bolt storage is convenient.
A kind of that expansion formula expansion bolt, including one end are provided with externally threaded screw rod, the screw rod is included in the axial direction
It is provided with multiple expansion columns that the screw body and screw body of blind hole be hinged away from external screw thread one end and blind hole is used cooperatively
And near expansion column one end and side be provided with toroidal cavity push rod, be arranged on screw body away from externally threaded one end with expand
Post quantity identical first through hole and connecting rod, the connecting rod through first through hole one end it is column articulated with expansion, away from
The connecting rod that one end of expansion column is slidably connected with toroidal cavity.
In use, push rod is tightened by square so that push rod works as pushrod movement to a side shifting of expansion column
During to first through hole, connecting rod will be dropped into toroidal cavity, when connecting rod is contacted with toroidal cavity, because push rod will
Carry out to the side shifting of expansion column one so that connecting rod will be moved up, while the expansion column being hinged with connecting rod will be moved up,
The free end of expansion column with hole will contact and clamping.After finishing, by reversely twisting push rod, push rod will to away from
One side shifting of expansion column, connecting rod will drive expansion column to move down so that expansion column does not lie in hole clamping, can be effective
By expansion bolt from hole take out.
Further, in order to preferably realize the present invention, the blind hole is provided with internal thread near externally threaded one end, institute
State push rod and the first external screw thread used cooperatively with blind hole internal thread is set near externally threaded one end.
Further, in order to preferably realize the present invention, the expansion column is provided with second near the side of first through hole
Groove, the connecting rod is column articulated with expansion through the second groove.Second groove enables connecting rod near one end of expansion column
Enough it is placed in the second groove.
Further, in order to preferably realize the present invention, the screw body is additionally provided with chi away from externally threaded side
The first groove that very little, position matches with expansion column, the expansion column is installed in the first groove and is hinged with screw body.Set the
One groove enables that expansion column is perfectly put into the first groove, when not in use so that expansion bolt storage is convenient.
The present invention compared with prior art, with advantages below and beneficial effect：
（1）The present invention is provided with push rod, connecting rod and expansion column, by push rod, connecting rod and expansion column with the use of can
It is effective to realize expansion, while after the completion of use, can take out and be reused.
（2）The present invention is provided with aftertaste spring and can be automatically obtained the return of push rod.
（3）The present invention is provided with the first groove, and expansion column can be placed in the first groove by the first groove so that
The design storage is simple.
（4）It is simple structure of the present invention, practical.
Brief description of the drawings
Fig. 1 is the structural representation under use state of the present invention；
Fig. 2 is the structural representation for being provided with regulating bolt and push rod in the present invention in blind hole；
Fig. 3 is the structural representation for being provided only with push rod in the present invention in blind hole；
Fig. 4 is the structural representation under unused state of the present invention
Wherein 1- blind holes, 2- screw bodies, 21- first through hole, the grooves of 22- first, 3- connecting rods, 4- expansion columns, 41- second is recessed
Groove, 5- regulating bolts, 6- push rods, 61- toroidal cavities, 7- springs.
Specific embodiment
The present invention is described in further detail with reference to embodiment, but embodiments of the present invention not limited to this.
Embodiment 1：
The present embodiment does further optimization on the basis of above-described embodiment, as shown in Figure 1, Figure 2, Figure 4 shows, a kind of from expansion formula expansion
Bolt, including one end is provided with externally threaded screw rod, the screw rod include being provided with the axial direction the screw body 2 of blind hole 1,
The push rod 6 that is matched with the size of blind hole 1 away from multiple expansion columns 4 that external screw thread one end is hinged with screw body 2, it is arranged on screw rod
Main body 2 away from externally threaded one end and the quantity identical first through hole 21 of expansion column 4 and through first through hole 21 respectively with expansion
Open the connecting rod 3 that post 4 and push rod 6 are hinged；The blind hole 1 is additionally provided with for driving near the externally threaded side of screw body 2
The gripping mechanism of the movement of push rod 6.
In use, push rod 6 is tightened by square so that a side shifting from push rod 6 to expansion column 4, when push rod 6
When moving to first through hole 21, connecting rod 3 will be dropped into toroidal cavity 61, when connecting rod 3 is contacted with toroidal cavity 61
When, because push rod 6 will be carried out to the side shifting of expansion column 4 one so that connecting rod 3 will be moved up, while being hinged with connecting rod 3
Expansion column 4 will be moved up, and the free end of expansion column 4 with hole will contact and clamping.After finishing, by reversely twisting
Turn push rod 6, by the side shifting away from expansion column 4, connecting rod 3 will drive expansion column 4 to move down to push rod 6 so that expansion
Post 4 does not lie in hole clamping, effectively expansion bolt can be taken out from hole.
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 2：
The present embodiment does further optimization on the basis of above-described embodiment, as shown in Figure 1 and Figure 2, further, in order to more preferable
The realization present invention, the blind hole 1 sets female screw rod near externally threaded one end；The gripping mechanism include with it is blind
The regulating bolt 5 that the screw-internal thread fit of hole 1 is used.The blind hole 1 is provided with spring 7 near one end of expansion column 4.The spring 7
It is return spring 7.
The gripping mechanism can also be that setting is used and externally threaded catch bar, catch bar and push rod with screw-internal thread fit
6 are contacted near externally threaded one end.
The spring 7 can freely be placed in blind hole 1, or push rod 6 is connected.
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 3：
It is a kind of that expansion formula expansion bolt, including one end are provided with externally threaded screw rod, the screw rod as shown in Fig. 1, Fig. 3, Fig. 4
Including multiple expansions that the screw body 2 and screw body 2 that are provided with blind hole 1 in the axial direction are hinged away from external screw thread one end
Post 4 and blind hole 1 use cooperatively and are provided with the push rod 6 of toroidal cavity 61, are arranged on screw rod near the one end of expansion column 4 and side
Main body 2 runs through away from externally threaded one end and the quantity identical first through hole 21 of expansion column 4 and connecting rod 3, the connecting rod 3
The one end of first through hole 21 and the connecting rod 3 that expansion column 4 is hinged, the one end away from expansion column 4 and toroidal cavity 61 are slidably connected.
It should be noted that by above-mentioned improvement, in use, push rod 6 is tightened by square so that push rod 6
To a side shifting of expansion column 4, when push rod 6 moves to first through hole 21, connecting rod 3 will be dropped into toroidal cavity 61,
When connecting rod 3 is contacted with toroidal cavity 61, because push rod 6 will be carried out to the side shifting of expansion column 4 one so that connecting rod 3 will
Move up, while the expansion column 4 being hinged with connecting rod 3 will be moved up, the free end of expansion column 4 will be contacted with hole
And clamping.After finishing, by reversely twisting push rod 6, by the side shifting away from expansion column 4, connecting rod 3 will for push rod 6
Drive expansion column 4 to move down so that expansion column 4 does not lie in hole clamping, effectively expansion bolt can be taken out from hole.
The toroidal cavity 61 is circular arc near one end of expansion column 4, when expansion bolt is taken out, connecting rod
The 3 face smoothing processes for passing through circular arc.
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 4：
The present embodiment does further optimization on the basis of above-described embodiment, and as shown in Figure 3, Figure 4, the blind hole 1 is near outer spiral shell
One end of line is provided with internal thread, and the push rod 6 sets first used with the screw-internal thread fit of blind hole 1 near externally threaded one end
External screw thread.
It should be noted that by above-mentioned improvement, internal thread is externally threaded with first to be used cooperatively, and realizes that push rod 6 can
It is fixedly installed in blind hole 1, realizes long-time clamping of the expansion column 4 to aperture wall.
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 5：
The present embodiment does further optimization, as shown in Figure 1, Figure 2, Figure 3, Figure 4, the expansion column on the basis of above-described embodiment
4 are provided with the second groove 41 near the side of first through hole 21, and the connecting rod 3 is hinged through the second groove 41 with expansion column 4.
It should be noted that by above-mentioned improvement,
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 6：
The present embodiment does further optimization, as shown in Figure 1, Figure 2, Figure 3, Figure 4, the screw rod master on the basis of above-described embodiment
The first groove 22 that body 2 is additionally provided with size away from externally threaded side, position matches with expansion column 4, the expansion column 4 is installed
It is hinged in first groove 22 and with screw body 2.
It should be noted that by above-mentioned improvement,
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 7：
The present embodiment does further optimization on the basis of above-described embodiment, as shown in Figure 1, Figure 2, Figure 4 shows, a kind of from expansion formula expansion
Bolt, including one end is provided with externally threaded screw rod, the screw rod include being provided with the axial direction the screw body 2 of blind hole 1,
The push rod 6 that is matched with the size of blind hole 1 away from multiple expansion columns 4 that external screw thread one end is hinged with screw body 2, it is arranged on screw rod
Main body 2 away from externally threaded one end and the quantity identical first through hole 21 of expansion column 4 and through first through hole 21 respectively with expansion
Open the connecting rod 3 that post 4 and push rod 6 are hinged；The blind hole 1 is additionally provided with for driving near the externally threaded side of screw body 2
The gripping mechanism of the movement of push rod 6.
Further, in order to preferably realize the present invention, the blind hole 1 sets female near externally threaded one end
Screw rod；The gripping mechanism includes the regulating bolt 5 used with the screw-internal thread fit of blind hole 1.
Further, in order to preferably realize the present invention, the spring 7 is return spring 7.
Further, in order to preferably realize the present invention, the blind hole 1 is provided with internal thread near externally threaded one end,
The push rod 6 sets the first external screw thread used with the screw-internal thread fit of blind hole 1 near externally threaded one end.
Further, in order to preferably realize the present invention, the expansion column 4 is provided with the near the side of first through hole 21
Two grooves, the connecting rod 3 is hinged through the second groove with expansion column 4.
Further, in order to preferably realize the present invention, the screw body 2 is additionally provided with chi away from externally threaded side
The first groove 22 that very little, position matches with expansion column 4, the expansion column 4 is installed in the first groove 22 and cut with scissors with screw body 2
Connect.
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 8：
The present embodiment does further optimization on the basis of above-described embodiment, a kind of from expansion formula expansion as shown in Fig. 1, Fig. 3, Fig. 4
Bolt, including one end is provided with externally threaded screw rod, the screw rod include being provided with the axial direction the screw body 2 of blind hole 1,
The multiple expansion columns 4 and blind hole 1 being hinged away from external screw thread one end with screw body 2 use cooperatively and near the one end of expansion column 4 and
Side is provided with the push rod 6 of toroidal cavity 61, to be arranged on screw body 2 identical with the quantity of expansion column 4 away from externally threaded one end
First through hole 21 and connecting rod 3, the connecting rod 3 is hinged through the one end of first through hole 21 and expansion column 4, away from expansion column
The connecting rod 3 that 4 one end is slidably connected with toroidal cavity 61.
Further, in order to preferably realize the present invention, the blind hole 1 is provided with internal thread near externally threaded one end,
The push rod 6 sets the first external screw thread used with the screw-internal thread fit of blind hole 1 near externally threaded one end.
Further, in order to preferably realize the present invention, the expansion column 4 is provided with the near the side of first through hole 21
Two grooves, the connecting rod 3 is hinged through the second groove with expansion column 4.
Further, in order to preferably realize the present invention, the screw body 2 is additionally provided with chi away from externally threaded side
The first groove 22 that very little, position matches with expansion column 4, the expansion column 4 is installed in the first groove 22 and cut with scissors with screw body 2
Connect.
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
The above, is only presently preferred embodiments of the present invention, not does any formal limitation to the present invention, it is every according to
Any simple modification, the equivalent variations made to above example according to technical spirit of the invention, each fall within protection of the invention
Within the scope of.
Claims (10)
- It is 1. a kind of that expansion formula expansion bolt, including one end are provided with externally threaded screw rod, it is characterised in that：The screw rod includes edge Axis direction is provided with blind hole（1）Screw body（2）With screw body（2）Away from multiple expansions that external screw thread one end is hinged Post（4）With blind hole（1）The push rod of size matching（6）, be arranged on screw body（2）Away from externally threaded one end and expansion column（4） Quantity identical first through hole（21）And through first through hole（21）Respectively with expansion column（4）And push rod（6）The connection being hinged Bar（3）, the blind hole（1）Near screw body（2）Externally threaded side is additionally provided with for driving push rod（6）Mobile clamping Device.
- 2. a kind of from expansion formula expansion bolt according to claim 1, it is characterised in that：The blind hole（1）Near externally threaded One end is provided with internal thread；The gripping mechanism includes and blind hole（1）The regulating bolt that screw-internal thread fit is used（5）.
- 3. a kind of from expansion formula expansion bolt according to claim 1, it is characterised in that：The blind hole（1）Near expansion column（4） One end spring is installed（7）.
- 4. a kind of from expansion formula expansion bolt according to claim 3, it is characterised in that：The spring（7）It is return spring （7）.
- 5. a kind of from expansion formula expansion bolt according to claim any one of 1-4, it is characterised in that：The expansion column（4）Lean on Nearly first through hole（21）Side be provided with the second groove（41）, the connecting rod（3）Through the second groove（41）With expansion column （4）It is hinged.
- 6. a kind of from expansion formula expansion bolt according to claim any one of 1-4, it is characterised in that：The screw body（2） Size, position and expansion column are additionally provided with away from externally threaded side（4）First groove of matching（22）, the expansion column（4） First groove is installed（41）（22）Interior and and screw body（2）It is hinged.
- It is 7. a kind of that expansion formula expansion bolt, including one end are provided with externally threaded screw rod, it is characterised in that：The screw rod includes edge Axis direction is provided with blind hole（1）Screw body（2）With screw body（2）Away from multiple expansions that external screw thread one end is hinged Post（4）With blind hole（1）With the use of and near expansion column（4）One end and side is provided with toroidal cavity（61）Push rod（6）、 It is arranged on screw body（2）Away from externally threaded one end and expansion column（4）Quantity identical first through hole（21）And connecting rod （3）, the connecting rod（3）Through first through hole（21）One end and expansion column（4）Be hinged, away from expansion column（4）One end and circle Annular groove（61）The connecting rod being slidably connected（3）.
- 8. a kind of from expansion formula expansion bolt according to claim 4, it is characterised in that：The blind hole（1）Near externally threaded One end is provided with internal thread, the push rod（6）Set near externally threaded one end and blind hole（1）Screw-internal thread fit use first External screw thread.
- 9. a kind of from expansion formula expansion bolt according to claim any one of 7-8, it is characterised in that：The expansion column（4）Lean on Nearly first through hole（21）Side be provided with the second groove（41）, the connecting rod（3）Through the second groove（41）With expansion column （4）It is hinged.
- 10. a kind of from expansion formula expansion bolt according to claim any one of 7-8, it is characterised in that：The screw body（2） Size, position and expansion column are additionally provided with away from externally threaded side（4）First groove of matching（22）, the expansion column（4） First groove is installed（41）（22）Interior and and screw body（2）It is hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710249452.7A CN106884836A (en) | 2017-04-17 | 2017-04-17 | It is a kind of to expand formula expansion bolt certainly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710249452.7A CN106884836A (en) | 2017-04-17 | 2017-04-17 | It is a kind of to expand formula expansion bolt certainly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106884836A true CN106884836A (en) | 2017-06-23 |
Family
ID=59183469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710249452.7A Pending CN106884836A (en) | 2017-04-17 | 2017-04-17 | It is a kind of to expand formula expansion bolt certainly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106884836A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194473A (en) * | 2017-12-29 | 2018-06-22 | 徐森良 | Reusable four-jaw type swell fixture |
| CN108613140A (en) * | 2018-05-25 | 2018-10-02 | 温州海邦警用装备有限公司 | A kind of warning lamp module |
| CN109185304A (en) * | 2018-09-14 | 2019-01-11 | 北京驰马特图像技术有限公司 | The foot-operated lock uint of orifice plate running equipment |
| CN109403668A (en) * | 2018-12-07 | 2019-03-01 | 长安大学 | A kind of multi-form exhibition booth build truss and its building method |
| WO2019041616A1 (en) * | 2017-08-31 | 2019-03-07 | 邓晓明 | Expansion screw |
| CN110848223A (en) * | 2019-11-22 | 2020-02-28 | 国唐汽车有限公司 | Locking device |
| CN114012627A (en) * | 2021-11-24 | 2022-02-08 | 重庆交通大学绿色航空技术研究院 | Reusable pull rod type quick locking device |
| CN114263671A (en) * | 2021-12-29 | 2022-04-01 | 重庆交通大学绿色航空技术研究院 | Connection locking mechanism convenient to dismantle |
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| CN109185304A (en) * | 2018-09-14 | 2019-01-11 | 北京驰马特图像技术有限公司 | The foot-operated lock uint of orifice plate running equipment |
| CN109403668A (en) * | 2018-12-07 | 2019-03-01 | 长安大学 | A kind of multi-form exhibition booth build truss and its building method |
| CN109403668B (en) * | 2018-12-07 | 2024-02-23 | 长安大学 | Truss and method for constructing multi-form exhibition stand |
| CN110848223A (en) * | 2019-11-22 | 2020-02-28 | 国唐汽车有限公司 | Locking device |
| CN114012627A (en) * | 2021-11-24 | 2022-02-08 | 重庆交通大学绿色航空技术研究院 | Reusable pull rod type quick locking device |
| CN114263671A (en) * | 2021-12-29 | 2022-04-01 | 重庆交通大学绿色航空技术研究院 | Connection locking mechanism convenient to dismantle |
| CN114263671B (en) * | 2021-12-29 | 2024-01-19 | 重庆交通大学绿色航空技术研究院 | Connection locking mechanism convenient to dismantle |
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Application publication date: 20170623 |
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