CN107939799A - Quick-detachable attachment device - Google Patents
Quick-detachable attachment device Download PDFInfo
- Publication number
- CN107939799A CN107939799A CN201710361192.2A CN201710361192A CN107939799A CN 107939799 A CN107939799 A CN 107939799A CN 201710361192 A CN201710361192 A CN 201710361192A CN 107939799 A CN107939799 A CN 107939799A
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- Prior art keywords
- connector
- quick
- hole
- ball
- mandrel
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- 230000000694 effects Effects 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/06—Releasable fastening devices with snap-action
- F16B21/08—Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part
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- 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
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/02—Releasable fastening devices locking by rotation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
A kind of quick-detachable attachment device, it is characterized in that, it includes the first connector, the second connector and mandrel, first connector is in elongated rod shape, and the second connector is equipped with axial through hole, it can be sheathed on first connector, quick-release link slot is equipped with the outer wall of the first connector, location division is equipped with the inner wall of the second connector, location division can be embedded in quick-release link slot, and along the carry out activity of quick-release link slot the first connector and the second connector can be made to link together.The present invention makes the first connector and the second connector link together by location division with quick-release link slot, and the ball for ensureing connection reliability is provided between the first connector and the second connector, so that its linking together of can consolidating, and can realize quick assembling and dismounting.The present invention is not attached using screw thread, its assembly or disassembly is simpler, and its fit precision is high, it can be achieved that being dismounted for multiple times use, beneficial to repair demolition and reduces cost.
Description
【Technical field】
The present invention relates to connector, more particularly to a kind of quick-detachable attachment device.
【Background technology】
In aerospace vehicle Element Design, need to as far as possible reduce threaded connection pair radial clearance with realize bolt product with
Matrix transition coordinates or interference fit, and requires the surface of bolt and matrix to have certain lubrication and requirement for anticorrosion at the same time.But
It is that existing regular screw threads auxiliary connection product surface anti-corrosion effect is not ideal enough, and it can only be intended for single use, after once mounting only
Energy damage type dismounting, cannot re-use after dismounting, overlong time be mounted and dismounted, so as to cause substantial amounts of material resources
Waste, and its using trouble, use cost are high.
【The content of the invention】
Present invention seek to address that the above problem, and one kind is provided and does not use screw thread to be attached, it is convenient for disassembly and assembly and repeatable
The quick-detachable attachment device used.
To achieve the above object, the present invention provides a kind of quick-detachable attachment device, it is characterised in that it is wrapped
The first connector and the second connector are included, first connector is in elongated rod shape, and second connector is equipped with axial lead to
Hole, it can be sheathed on first connector, set on the outer wall of first connector or on the inner wall of the second connector
There are one or more quick-release link slots, the quick-release link slot is constructed in having latch functions, in second connector
Inner wall on or the outer wall of the first connector be equipped with one or more location divisions, the location division can be embedded in the quick-release and connect
In access slot, and along the quick-release link slot carry out activity the first connector and the second connector can be made to link together.
The location division is equipped with the inner wall of the through hole, is equipped with the outer wall of first connector described fast
Unload link slot.
The quick-release link slot includes guide groove and position-arresting groove, and the guide groove is penetrated through with the position-arresting groove, the guiding
Groove is extended by the end of first connector and is formed along its length, the position-arresting groove by the guide groove end
Extend along the circumferencial direction of the first connector and formed.
Blind hole is equipped with one end end equipped with quick-release link slot of first connector, in the described first connection
The side wall of part is equipped with the first pin hole, and first pin hole is penetrated through with the blind hole.
It further includes mandrel, spring and pin, the second pin hole equipped with transverse direction on the mandrel, and the one of the mandrel
End is plugged in the blind hole, its other end is extended to outside blind hole, and the spring is arranged in the blind hole, its one end and blind hole
Bottom abuts against, and the end of its other end and the mandrel abuts against, and the pin is plugged in first pin hole and the second pin
It may be such that mandrel links together with the first connector in hole.
The first ball hole is equipped with side wall on first connector, is set on the side wall of second connector
There is the second ball hole, ball grooves are equipped with the side wall of the mandrel, when the location division activity of second connector is to described
During the endpoint location of position-arresting groove, first ball hole is corresponding with the second ball hole site；Pressed when along spring direction
During the mandrel, the position of the ball grooves is corresponding with the position of first ball hole.
The ball grooves are constructed in the guide surface that can slide into and out ball.
Ball is being equipped with the ball grooves, is causing the ball grooves when pressing the mandrel along spring direction
When position is corresponding with the position of first ball hole, the ball can enter first ball hole and the second ball hole
First connector and the second connector described in interior and locking.
It is arranged with the tapered sleeve unit and limited block that can be extruded on first connector, the one of the tapered sleeve unit
End is abutted with second connector, its other end is abutted with the limited block.
The 3rd pin hole is equipped with one end of the close limited block of first connector.
The favorable attributes of the present invention are that it efficiently solves the above problem.The present invention by set the first connector,
Second connector and mandrel, make the first connector link together with the second connector by location division and quick-release link slot, and
The first connector is linked together with mandrel by pin, and be provided with and protect between the first connector and the second connector
The ball of connection reliability is demonstrate,proved, so that linking together of can consolidating of three, and can realize quick assembling and dismounting.
It is not attached between the first connector and the second connector of the present invention using screw thread, because without destroying surface structure.This
For the quick-detachable attachment device of invention compared with existing threaded connection ancillary equipment, assembly or disassembly of the present invention is simpler
It is single, and its fit precision is high, it can be achieved that being dismounted for multiple times use, beneficial to repair demolition and reduces cost.The present invention has very strong
Practicality, is preferably widelyd popularize.
【Brief description of the drawings】
Fig. 1 is the sectional arrangement drawing of the present invention.
Fig. 2 is the structural decomposition diagram of the present invention.
Fig. 3 is the structure diagram of the first connector of the present invention.
Fig. 4 is the structure diagram of the second connector of the present invention.
Fig. 5 is the structure diagram of the mandrel of the present invention.
Wherein, the first connector 1, quick-release link slot 11, guide groove 111, position-arresting groove 112, blind hole 12, the first pin hole 13,
First ball hole 14, the 3rd pin hole 15, the second connector 2, through hole 21, location division 22, the second ball hole 23, boss 24, mandrel
3rd, the second pin hole 31, ball grooves 32, guide surface 33, spring 4, pin 5, ball 6, tapered sleeve unit 7, inner conical drogue 71, external conical sleeve
72nd, limited block 8, handle 9, spring leaf 10.
【Embodiment】
The following example is being explained further and supplementing to the present invention, and the present invention is not limited in any way.
The broad outlines of the quick-detachable attachment device of the present invention are that its is convenient for disassembly and assembly, are not required to install additionally
Installation tool, and its is reusable.The quick-detachable attachment device of the present invention is applicable to armed helicopter weapon extension
Liang Shang, the cabin door structure shaft for being equally applicable to aircraft are medium.
Specifically, as shown in Fig. 1~Fig. 5, quick-detachable attachment device of the invention includes the first connector 1, the
Two connectors 2, mandrel 3, spring 4, ball 6, tapered sleeve unit 7 and limited block 8.
As shown in figure 3, first connector 1 is in elongated rod shape, in the present embodiment, it is in cylinder.Connect described first
One end end of fitting 1 is equipped with blind hole 12, it is used to install the mandrel 3.Set on the side wall of first connector 1
There is the first pin hole 13, it is used to install pin 5 and make the first connector 1 link together with mandrel 3.First pin hole 13
The diameter of first connector 1 is extended transversely through, and is penetrated through with the blind hole 12.For convenience of quick despatch, connect described first
The outer wall of fitting 1 is equipped with quick-release link slot 11, it is arranged on one end equipped with blind hole 12 of first connector 1.It is described
It is in have latch functions that quick-release link slot 11, which is constructed, and in the present embodiment, the quick-release link slot 11 includes 111 He of guide groove
Position-arresting groove 112.The guide groove 111 is extended by the end of first connector 1 and is formed along its length, described to stop
Position groove 112 is extended by the circumferencial direction of end along the first connector 1 of the guide groove 111 and is formed.The guide groove 111
It is straight-line groove with the position-arresting groove 112, wherein, the guide groove 111 both can be parallel to the axis of first connector 1
Line, can also be not parallel to the axis of first connector 1；The position-arresting groove 112 both can perpendicular to the guide groove 111,
The guide groove 111 can be not orthogonal to.In the present embodiment, preferably described guide groove 111 parallel to the first connector 1 axis,
It is preferred that the position-arresting groove 112 perpendicular to the guide groove 111, so as to be beneficial to load the second connector 2, and strengthens connection reliably
Property.The quantity of the quick-release link slot 11 can be set as desired, in the present embodiment, in the outer of first connector 1
Three quick-release link slots 11 are interval with wall.In addition, to strengthen connection reliability, on the side wall of first connector 1
Be additionally provided with the first ball hole 14, its be used to being embedded in ball 6 and make the first connector 1 and the second connector 2 can not relative motion,
So as to lift the reliability of both connections.The quantity of first ball hole 14 can be set as desired, in the present embodiment,
Three the first ball holes 14 are interval with the side wall of first connector 1.The position of first ball hole 14 can root
Set according to needs, in the present embodiment, first ball hole 14 be located at the endpoint location of the position-arresting groove 112 just under
Side.In other embodiment, first ball hole 14 can be also arranged at other positions.First connector 1 with equipped with
The opposite other end of blind hole 12 is equipped with the 3rd pin hole 15, it is used for connection and treats connector, such as handle 9.It is described for convenience of connection
The end structure equipped with the 3rd pin hole 15 of first connector 1 is in double flat-shaped.
As shown in figure 4, second connector 2 is used to quickly connect and fast quick-detach, it is in shell-like, be which is provided with logical
Hole 21, it is used to be sheathed on first connector 1.The size of the through hole 21 is greater than or equal to first connector 1
Outer diameter.To make the second connector 2 link together with first connector 1, set on the inner wall of the through hole 21
There is location division 22.The quantity of the location division 22 and the quantity of the quick-release link slot 11 match, in the present embodiment, in institute
State and three location divisions 22 are interval with the inner wall of through hole 21.The shape of the location division 22 is with the guide groove 111 and only
The shape of cross section of position groove 112 matches, it can be caught in the guide groove 111 and position-arresting groove 112, and can be along the guide groove
111 and position-arresting groove 112 move.In the present embodiment, the location division 22 is formed at the top of the through hole 21, it protrudes from logical
The inner wall in hole 21, its cross section are square.To strengthen the reliability that the first connector 1 is connected with the second connector 2, described
Second connector 2 is equipped with the second ball hole 23.The position of second ball hole 23 according to the quick-release link slot 11 and
The locations of structures of first ball hole 14 and set, when second connector 2 is inserted in first connector 1, and its location division
22 activity to the position-arresting groove 112 endpoint location when, second ball hole 23 should be with the position of first ball hole 14
It is corresponding.In the present embodiment, first ball hole 14 is arranged on the underface of the endpoint location of the position-arresting groove 112, then described
Second ball hole 23 is located at the underface of the location division 22, its distance being spaced with location division 22, with first ball
Hole 14 is equal with the distance that the position-arresting groove 112 is spaced.For convenience of tapered sleeve unit 7 is abutted, at the end of second connector 2
Portion is equipped with radially outwardly extending boss 24, the boss 24 are connected positioned at described second respectively with the location division 22
The opposite both ends of part 2.The shape of second connector 2 can be set as desired, and in the present embodiment, it is constructed in class
Like the shape of hex nut.
As shown in figure 5, the mandrel 3 is in round bar shape, it is used to be sleeved in first connector 1, and connects with first
Fitting 1 forms connection.The second pin hole 31 for extending transversely through 3 diameter of mandrel, second pin hole 31 are equipped with the mandrel 3
Size be more than pin 5 to be connected size so that it is with displacement space, available for adjustment assembly precision.To add
Strong ties reliability, and easy disassembly, are equipped with ball grooves 32 on the side wall of the mandrel 3.The quantity of the ball grooves 32 and
Position is set according to the quantity and position of first ball hole 14.In the present embodiment, on the side wall of the mandrel 3 between
Every equipped with three ball grooves 32.When pressing down on mandrel 3 and mandrel 3 is compressed spring 4, the position of the ball grooves 32 should
It is corresponding with the position of first ball hole 14, so as to enter the rolling of the first connector 1 and the second connector 2 beneficial to ball 6
In the hole of bead.Slid into and out for convenience of ball 6, the ball grooves 32 are constructed in having guide surface 33, and the guide surface 33 is in oblique
Planar.
As shown in Figure 1 and Figure 2, the tapered sleeve unit 7 includes inner conical drogue 71 and external conical sleeve 72.The inner conical drogue 71 and outer cone
Known tapered sleeve can be selected in set 72, it is cylindrical in shape, its outer surface is constructed in two conical surfaces with relative tilt, and phase
Together with adjacent inner conical drogue 71 can be matched with the conical surface of external conical sleeve 72, and cause inner conical drogue 71 and external conical sleeve 72 is adjacent is embedded.When
When extruding the tapered sleeve unit 7 along the end of tapered sleeve unit 7, the conical surface of the inner conical drogue 71 and external conical sleeve 72 can move in opposite directions
It is dynamic, so that 71 tensioner of inner conical drogue, external conical sleeve 72 swell.
As shown in Figure 1 and Figure 2, the limited block 8 can be sheathed on first connector 1, it is used to limit the cone
Unit 7 is covered, and bears applied external force.
In use, as shown in Figure 1 and Figure 2, the location division 22 of the second connector 2 is directed at the guide groove 111, Ran Houyan
111 the second connector of slide downward 2 of guide groove, when sliding into the endpoint location of guide groove 111, along 112 turns of the position-arresting groove
Second connector 2 is moved, the location division 22 of the second connector 2 is slid at the endpoint location of position-arresting groove 112.Thereafter exist
Ball 6 is put into the ball grooves 32 of mandrel 3, is then put into spring 4 and mandrel 3 in the blind hole 12 of first connector 1,
One end of spring 4 is set to be contacted with 12 bottom of blind hole, its other end is contacted with mandrel 3.Thereafter connecting component, such as handle 9 will be treated
The spring leaf 10 of the other end is sleeved on mandrel 3, then by mandrel 3, the first connector 1 and treats that connecting component connects using pin 5
Together so that treat that connecting component can not deviate from along mandrel 3.When mandrel 3 loads first connector 1, along 4 side of spring
To the mandrel 3 is pressed, so that 6 synchronizing moving of ball.When mandrel 3 is displaced downwardly to certain position, its ball grooves 32 with
First ball hole, 14 position is opposite, and the ball 6 in ball grooves 32 slips into the first ball hole 14 and the second ball hole 23 at this time
It is interior.When unclamping the mandrel 3, the mandrel 3 moves backward under the elastic force effect of spring 4, so that ball grooves 32
Position and the position of first ball hole 14 stagger, and then ensure that the ball 6 is stuck in first connector 1 and the
It can not deviate between two connectors 2, avoid 2 Joint failure of the first connector 1 and the second connector.When disassembly is desired,
Press down on the mandrel 3 so that the position of its ball grooves 32 is corresponding with the position of first ball hole 14, Ran Houyan
The direction of position-arresting groove 112 rotates second connector 2, at this time, the ball 6 in the first ball hole 14 and the second ball hole 23
Can stress and extrude to the ball grooves 32, then unclamp the mandrel 3, the ball 6 is just skidded off with mandrel 3, and
Two connectors 2 also conveniently can deviate from first connector 1 by the guide groove 111, so as to complete disassembly process.Work as core
When axis 3, the first connector 1 and the second connector 2 link together, also installation can be confirmed by rotating second connector 2
Whether in place：When second connector 2 can not be rotated, illustrate that the ball 6 is stuck in the first connector 1 and the second connection
Between part 2, connection is reliable between it；If second connector 2 can be rotated, illustrate that ball 6 is not caught in first connection
Between 1 and second connector 2 of part, installation does not need to re-start installation in place.In addition, the second pin hole 31 of the mandrel 3
Size is more than the size of pin 5, and tapered sleeve unit 7 and limited block 8 are arranged with outside the first connector 1, therefore it can also pass through
The cam of 9 end of handle acts on limited block 8 and adjusts assembly precision and self-locking effect.Use can quickly tearing open for the present invention
The attachment device unloaded, it is not only beneficial to installation and removal, but also its connection is reliable, and fit precision is high, and dismantled and assembled repetition makes
With beneficial to cost is reduced, it has very strong practicality, preferably widelys popularize.
Although being disclosed by above example to the present invention, the scope of the invention is not limited to this,
Under conditions of present inventive concept, each component of the above can use the similar or equivalent element that technical field personnel understand
To replace, for example, the location division 22 can be arranged on the outer wall of first connector 1, and by the quick-release link slot
11 are arranged on the inner wall of second connector.
Claims (10)
- A kind of 1. quick-detachable attachment device, it is characterised in that it includes the first connector (1) and the second connector (2), First connector (1) is in elongated rod shape, and second connector (2) is equipped with axial through hole (21), it can be sheathed on described On first connector (1), on the outer wall of first connector (1) or on the inner wall of the second connector (2) be equipped with one or Multiple quick-release link slots (11), the quick-release link slot (11) are constructed in having latch functions, in second connector (2) Inner wall on or the outer wall of the first connector (1) be equipped with one or more location divisions (22), the location division (22) can be embedded in In the quick-release link slot (11), and the first connector (1) and second can be made along quick-release link slot (11) the carry out activity Connector (2) links together.
- 2. quick-detachable attachment device as claimed in claim 1, it is characterised in that on the inner wall of the through hole (21) Equipped with the location division (22), the quick-release link slot (11) is equipped with the outer wall of first connector (1).
- 3. quick-detachable attachment device as claimed in claim 2, it is characterised in that the quick-release link slot (11) includes Guide groove (111) and position-arresting groove (112), the guide groove (111) penetrate through with the position-arresting groove (112), the guide groove (111) Extended along its length by the end of first connector (1) and formed, the position-arresting groove (112) is by the guide groove (111) circumferencial direction of end along the first connector (1) extends and is formed.
- 4. quick-detachable attachment device as claimed in claim 2, it is characterised in that in first connector (1) One end end equipped with quick-release link slot (11) is equipped with blind hole (12), and the is equipped with the side wall of first connector (1) One pin hole (13), first pin hole (13) penetrate through with the blind hole (12).
- 5. quick-detachable attachment device as claimed in claim 4, it is characterised in that it further includes mandrel (3), spring (4) and pin (5) horizontal the second pin hole (31), is equipped with the mandrel (3), one end of the mandrel (3) is plugged in institute State in blind hole (12), its other end extends to blind hole (12) outside, and the spring (4) is arranged in the blind hole (12), its one end with Blind hole (12) bottom abuts against, its other end and the end of the mandrel (3) abut against, and the pin (5) is plugged in described It may be such that mandrel (3) in one pin hole (13) and the second pin hole (31) and link together with the first connector (1).
- 6. quick-detachable attachment device as claimed in claim 5, it is characterised in that on first connector (1) Side wall be equipped with the first ball hole (14), the second ball hole (23) is equipped with the side wall of second connector (2), in institute The side wall for stating mandrel (3) is equipped with ball grooves (32), when the location division (22) of second connector (2) is movable to the stop bit During the endpoint location of groove (112), first ball hole (14) is corresponding with the second ball hole (23) position；When along spring (4) when direction presses mandrel (3), the position of the ball grooves (32) is opposite with the position of first ball hole (14) Should.
- 7. quick-detachable attachment device as claimed in claim 6, it is characterised in that the ball grooves (32), which are constructed, is in With the guide surface (33) that can slide into and out ball (6).
- 8. quick-detachable attachment device as claimed in claim 6, it is characterised in that set in the ball grooves (32) There is ball (6), when along spring (4) direction pressing mandrel (3) and so that the position and described first of the ball grooves (32) When the position of ball hole (14) is corresponding, the ball (6) can enter first ball hole (14) and the second ball hole (23) First connector (1) and the second connector (2) described in interior and locking.
- 9. quick-detachable attachment device as claimed in claim 1, it is characterised in that on first connector (1) It is arranged with the tapered sleeve unit (7) and limited block (8) that can be extruded, one end and second connector of the tapered sleeve unit (7) (2) abut, its other end is abutted with the limited block (8).
- 10. quick-detachable attachment device as claimed in claim 9, it is characterised in that in first connector (1) The 3rd pin hole (15) is equipped with close to one end of the limited block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710361192.2A CN107939799A (en) | 2017-05-22 | 2017-05-22 | Quick-detachable attachment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710361192.2A CN107939799A (en) | 2017-05-22 | 2017-05-22 | Quick-detachable attachment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107939799A true CN107939799A (en) | 2018-04-20 |
Family
ID=61929051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710361192.2A Pending CN107939799A (en) | 2017-05-22 | 2017-05-22 | Quick-detachable attachment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107939799A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109649669A (en) * | 2018-12-26 | 2019-04-19 | 成都优艾维智能科技有限责任公司 | A kind of rotary self-locking probe connection structure for unmanned plane |
| CN111577730A (en) * | 2020-05-26 | 2020-08-25 | 深圳亚太航空技术有限公司 | Quick-release expansion device |
| CN114992228A (en) * | 2022-07-07 | 2022-09-02 | 深圳亚太航空技术股份有限公司 | Quick-release connecting device |
| CN115030946A (en) * | 2022-07-07 | 2022-09-09 | 深圳亚太航空技术股份有限公司 | Bolt type quick-release expansion device |
| RU2813808C1 (en) * | 2023-10-12 | 2024-02-19 | Акционерное общество "ГАРУДА АЭРО" (АО "ГАРУДА АЭРО") | Quick release bolt for attaching helicopter blades |
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| CN103410835A (en) * | 2013-07-05 | 2013-11-27 | 贵州航天精工制造有限公司 | Heavy-load type self-positioning threaded connection assembly and application method thereof |
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| CN111577730A (en) * | 2020-05-26 | 2020-08-25 | 深圳亚太航空技术有限公司 | Quick-release expansion device |
| CN114992228A (en) * | 2022-07-07 | 2022-09-02 | 深圳亚太航空技术股份有限公司 | Quick-release connecting device |
| CN115030946A (en) * | 2022-07-07 | 2022-09-09 | 深圳亚太航空技术股份有限公司 | Bolt type quick-release expansion device |
| CN114992228B (en) * | 2022-07-07 | 2023-02-17 | 深圳亚太航空技术股份有限公司 | Quick-release connecting device |
| US11885362B2 (en) | 2022-07-07 | 2024-01-30 | Shenzhen Asia Pacific Aviation Technology Co., Ltd | Quick-release connection device |
| RU2813808C1 (en) * | 2023-10-12 | 2024-02-19 | Акционерное общество "ГАРУДА АЭРО" (АО "ГАРУДА АЭРО") | Quick release bolt for attaching helicopter blades |
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