CN115030946A - Bolt type quick-release expansion device - Google Patents
Bolt type quick-release expansion device Download PDFInfo
- Publication number
- CN115030946A CN115030946A CN202210803920.1A CN202210803920A CN115030946A CN 115030946 A CN115030946 A CN 115030946A CN 202210803920 A CN202210803920 A CN 202210803920A CN 115030946 A CN115030946 A CN 115030946A
- Authority
- CN
- China
- Prior art keywords
- guide rod
- sleeve
- taper sleeve
- taper
- type quick
- 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
- 125000006850 spacer group Chemical group 0.000 claims description 29
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
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
- F16B13/06—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 combined with expanding sleeve
- F16B13/063—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 combined with expanding sleeve by the use of an expander
-
- 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
- F16B13/06—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 combined with expanding sleeve
- F16B13/063—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 combined with expanding sleeve by the use of an expander
- F16B13/066—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 combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
A plug pin type quick-release expansion device comprises a guide rod, a cam handle, a limiting piece and an expansion assembly, wherein the guide rod is in a long shaft shape; the cam handle is rotationally connected to one end of the guide rod; the limiting piece is sleeved on the guide rod and is adjacent to the cam handle; the expansion assembly is sleeved on the guide rod, one end of the expansion assembly is abutted to the limiting piece, one end of the expansion assembly is limited by the guide rod, and the expansion assembly can be extruded to expand outwards and contract inwards to tightly hold the guide rod. The bolt type quick-release expansion device transmits force to the expansion assembly through the limiting piece by rotating the cam handle, so that the outer taper sleeve is elastically deformed and expanded to form interference fit with the mounting hole, and the inner taper sleeve is elastically deformed and reduced to tightly hold the guide rod, so that the device and the connecting piece form rigid connection to ensure strength. The bolt type quick-release expansion device can finish locking and unlocking operations on one side, does not need tools for dismounting, has the operating force within the manpower range, has very simple operation, and can ensure the response speed.
Description
[ technical field ] A
The invention relates to the field of machinery, in particular to a plug pin type quick-release expansion device.
[ background of the invention ]
With the rapid development of aerospace industry, large military equipment tends to be modularized and modularized in order to ensure production efficiency and maintenance efficiency; in order to meet different requirements, under the same-platform airplane, more and more specific models are developed, and the specific differences are mainly different in mounting equipment. This presents new challenges and requirements for the interface and its connection device. The connecting device is different from common bolt and nut connection, and on the premise of meeting the strength, the operating performance of the connecting device needs to meet the indexes of quick response and reusability. In structural connection of modern airplanes, aiming at the condition that blind hole connection and operation space are limited by unilateral operation, the existing bolts and rivets can not meet the use requirements, the former has high requirement on precision of assembly holes, and is complex to assemble and long in time, and the latter can only aim at connection with smaller interlayer thickness, and when large-scale external equipment such as an external bullet box and an external oil tank is limited in operation space, the existing bolts and rivets can not meet the strength requirement and the time requirement for quick operation at the same time.
[ summary of the invention ]
The present invention is directed to solving the above problems, and provides a plug-type quick release expansion device which is suitable for single-side operation and can satisfy the strength requirement and perform quick operation.
In order to solve the problems, the invention provides a bolt type quick-release expansion device which is characterized by comprising a guide rod, a cam handle, a stopper and an expansion assembly, wherein the guide rod is in a long shaft shape; the cam handle is rotationally connected to one end of the guide rod; the limiting piece is sleeved on the guide rod and is adjacent to the cam handle; the expansion assembly is sleeved on the guide rod, one end of the expansion assembly is abutted to the limiting piece, the other end of the expansion assembly is limited by the guide rod, and the expansion assembly can be extruded to expand outwards and contract inwards to hold the guide rod tightly.
Further, the guide rod comprises a first rod body part and a second rod body part, the diameter of the first rod body part is smaller than that of the second rod body part, and the first rod body part and the second rod body part are connected through a conical part.
Further, the expansion assembly comprises an end taper sleeve, a plurality of outer taper sleeves, at least one inner taper sleeve and a spacer sleeve, the end taper sleeve is movably sleeved on the first rod body part and can deform along the radial direction, and the end taper sleeve is adjacent to the stopper; the outer taper sleeve is movably sleeved on the first rod body part and can deform along the radial direction, and the outer taper sleeve and the end taper sleeve can be matched through a taper surface; the inner taper sleeve is movably sleeved on the first rod body part and can deform along the radial direction, and the inner taper sleeve and the outer taper sleeve can be matched through a tapered surface; the spacer sleeve is movably sleeved on the first rod body part and can deform along the radial direction, one end of the spacer sleeve is matched with the inner taper sleeve through a taper surface, and the other end of the spacer sleeve is matched with the taper part through a taper surface; when the cam handle rotates around the guide rod to extrude the limiting part, the end taper sleeve, the outer taper sleeve, the inner taper sleeve and the spacer sleeve are mutually extruded to enable the end taper sleeve and the inner taper sleeve to be inwardly contracted to tightly hold the guide rod, and the outer taper sleeve is enabled to be outwardly expanded.
Furthermore, the inner taper sleeve and the outer taper sleeve are arranged at intervals.
Furthermore, a first opening which extends along the axial direction and penetrates through two ends of the end taper sleeve is arranged on the end taper sleeve; the outer wall of the end taper sleeve is provided with a first taper surface, and the first taper surface is formed by narrowing the end of the end taper sleeve close to the stopper to the end far away from the stopper.
Furthermore, the outer taper sleeve is provided with a second opening which extends along the axial direction and penetrates through two ends of the outer taper sleeve, two second taper surfaces are respectively arranged on the inner walls of the two ends of the outer taper sleeve, and the second taper surfaces are formed by inwards inclining the inner walls of the end parts of the outer taper sleeve.
Furthermore, the inner cone sleeve is provided with a third opening which extends along the axial direction and runs through two ends of the inner cone sleeve, the outer walls of the two ends of the inner cone sleeve are respectively provided with a third conical surface, and the third conical surface is formed by outwards inclining the outer wall of the end part of the inner cone sleeve.
Further, the stopper has a transverse dimension greater than an expanded radial dimension of the expansion assembly.
The present invention advantageously contributes to effectively solving the above-mentioned problems. The bolt type quick-release expansion device of the invention transmits force to the expansion assembly through the limiting part by rotating the cam handle, so that the outer taper sleeve is elastically deformed and expanded to form interference fit with the mounting hole, and the inner taper sleeve is elastically deformed and contracted to tightly hold the guide rod, thereby the device and the connecting piece form rigid connection to ensure strength and achieve a locking state. In addition, the operation space of the bolt type quick-release expansion device is arranged at the insertion end, the cam handle is rotated, the locking and unlocking operation can be completed on one side, tools are not needed in the dismounting and the mounting, the operation force is in the manual range, the operation is very simple, and the response speed can be ensured. The bolt type quick-release expansion device can be designed into structures with different taper sleeve numbers and diameters according to different interlayer thicknesses, so that the size limitation of a bolt connecting pair does not exist, the interlayer thickness limitation of a rivet does not exist, and the bolt type quick-release expansion device has stronger universality and practicability compared with the existing bolt and rivet connecting structures.
[ description of the drawings ]
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a schematic structural view of an end cone sleeve.
Fig. 4 is a schematic structural view of the outer cone sleeve.
FIG. 5 is a schematic view of the inner taper sleeve configuration.
Fig. 6 is a schematic view of the structure of the spacer.
FIG. 7 is another schematic view of the spacer.
The attached drawings are as follows: the guide rod 10, the first rod body part 11, the tapered part 12, the second rod body part 13, the oblate rod part 14, the cam handle 20, the cam part 21, the handle part 22, the stopper 30, the expansion assembly 40, the end cone 41, the first opening 411, the first tapered surface 412, the outer cone 42, the second opening 421, the second tapered surface 422, the inner cone 43, the third opening 431, the third tapered surface 432, the spacer 44, the fourth opening 441, the fourth tapered surface 442 and the fifth tapered surface 443.
[ detailed description ] embodiments
The following examples are further illustrative and supplementary to the present invention and do not limit the present invention in any way.
As shown in fig. 1 to 7, the disassembled quick-release expansion device of the invention comprises a guide rod 10, a cam handle 20, a stopper 30 and an expansion assembly 40. The cam handle 20 is rotatably connected to one end of the guide rod 10, and the stopper 30 is sleeved on the guide rod 10 and is adjacent to the cam handle 20; the expansion component 40 is sleeved on the guide rod 10; when the cam handle 20 is rotated, the force is transmitted to the expansion unit 40 through the stopper 30, and the expansion unit 40 is pressed to be expanded outwardly to form an interference fit with the mounting hole and to be contracted inwardly to grip the guide bar 10, thereby forming a stable connection. The expansion assembly 40 can be driven to deform by rotating the cam handle 20, so that the rapid disassembly and the assembly are realized, and the operation is very simple.
Specifically, as shown in fig. 1 and 2, the guide rod 10 is installed in a long shaft, and one end of the guide rod is provided with a rotating shaft hole arranged along the radial direction, and the rotating shaft hole is used for rotatably connecting the cam handle 20. The guide bar 10 includes a first bar portion 11, a tapered portion 12, and a second bar portion 13, which are integrally formed. The first shaft portion 11 is a round shaft and is used for sleeving the expansion element 40. The diameter of the second shaft portion 13 is larger than the diameter of the first shaft portion 11. The tapered portion 12 is connected between the first rod portion 11 and the second rod portion 13, and is configured to engage with the expansion element 40 and limit the expansion element 40. In this embodiment, an oblate rod portion 14 is further provided at the other end of the first rod portion 11 opposite to the second rod portion 13, the oblate rod portion 14 is located at the end surface of the first rod portion 11, a part of the surface of the oblate rod portion 14 is smoothly connected with the surface of the first rod portion 11, and the other part of the surface of the oblate rod portion is planar to form a step with the first rod portion 11. One end of the oblate rod part 14 is provided with the rotating shaft hole.
As shown in fig. 1 and fig. 2, the stopper 30 is sleeved on the guide rod 10, and in this embodiment, the stopper 30 is sleeved on the oblate rod portion 14, which is adjacent to the cam handle 20. The stopper 30 is restricted by the first lever portion 11 to be movable only on the oblate lever portion 14. The stopper 30 is in the shape of a round block, and the central hole thereof can be set as required, and can be sleeved on the oblate rod portion 14 and can not pass through the first rod portion 11.
In this embodiment, the stopper 30 has a transverse dimension greater than an expanded dimension of the expansion assembly 40.
As shown in fig. 1 and 2, the expansion assembly 40 is movably sleeved on the guide rod 10, specifically, movably sleeved on the first rod body 11, and has one end abutting against the stopper 30 and one end engaged with the tapered portion 12 for being limited. The expansion assembly 40 is compressible to expand outwardly into an interference fit with the mounting hole and to contract inwardly to grip the guide pole 10.
As shown in fig. 1 and 2, the expansion assembly 40 includes an end cone 41, a plurality of outer cones 42, at least one inner cone 43, and a spacer 44.
As shown in fig. 1 and 2, the end cone sleeve 41 is movably sleeved on the guide rod 10 and can be deformed in the radial direction. Specifically, the end cone sleeve 41 is sleeved on the first rod body portion 11 and adjacent to the stopper 30. As shown in fig. 3, the end cone 41 is provided with a first opening 411 which can extend in the axial direction and penetrate through both ends thereof, so that the end cone 41 can be deformed in the radial direction to expand or contract. A first tapered surface 412 is provided on the outer wall of the end cone 41, and the first tapered surface 412 is formed by the end of the end cone 41 close to the stopper 30 being narrowed toward the end far from the stopper 30. When the first conical surface 412 is pressed, the end cone 41 is deformed to contract inward.
As shown in fig. 1 and 2, the outer taper sleeve 42 is movably sleeved on the guide rod 10 and can be deformed in the radial direction. Specifically, the outer taper sleeve 42 is sleeved on the first rod body portion 11. The outer taper sleeve 42 and the end taper sleeve 41 and the inner taper sleeve 43 can be pressed by the matching of the taper surfaces to realize expansion or contraction. In this embodiment, as shown in fig. 4, the outer cone 42 is provided with a second opening 421 extending in the axial direction and penetrating both ends thereof, so that the outer cone 42 can be deformed in the radial direction to expand outward. And second taper surfaces 422 are respectively arranged on the inner walls of the two ends of the outer taper sleeve 42. The second tapered surface 422 is formed by the inner wall of the end of the outer cone 42 being inclined inwardly. When the second tapered surface 422 is compressed, the outer cone 42 may deform and expand outwardly.
As shown in fig. 1 and 2, the inner taper sleeve 43 is movably sleeved on the guide rod 10 and is radially deformable. Specifically, the inner taper sleeve 43 is sleeved on the first rod portion 11. The inner taper sleeve 43 and the outer taper sleeve 42 are arranged at intervals, namely, an inner taper sleeve 43 is arranged beside one outer taper sleeve 42. The inner conical sleeve 43 in the end position is adjacent to the spacer sleeve 44. The inner taper sleeve 43 can be pressed with the outer taper sleeve 42 and the spacer 44 through the conical surface matching to realize expansion or contraction. In this embodiment, as shown in fig. 5, the inner collar 43 is provided with third openings 431 extending in the axial direction and penetrating both ends thereof, so that the inner collar 43 can be deformed in the radial direction to be expanded outward. The outer walls of the two ends of the inner taper sleeve 43 are respectively provided with a third taper surface 432, and the third taper surface 432 is formed by inclining the outer wall of the end of the inner taper sleeve 43 outwards. When the third tapered surface 432 is pressed, the inner taper sleeve 43 is deformed to contract inwardly.
As shown in fig. 1 and fig. 2, the spacer 44 is movably sleeved on the guide rod 10. Specifically, the spacer 44 is sleeved on the first body portion 11, and has one end engaged with the inner taper sleeve 43 and one end engaged with the tapered portion 12. A fourth tapered surface 442 and a fifth tapered surface 443 are provided on the inner wall of the spacer 44. The fourth tapered surface 442 is formed by an inner wall of an end portion of the spacer 44 near the inner taper sleeve 43 being inclined inward, and is adapted to be engaged with the inner taper sleeve 43. The fifth tapered surface 443 is formed by an inner wall of an end portion of the spacer 44 near the tapered portion 12 being inclined inward, and is adapted to cooperate with the tapered surface. In some embodiments, as shown in fig. 6, the spacer 44 is radially deformable, and a fourth opening 441 is provided in the spacer 44 to extend axially and through both ends thereof, so that the spacer 44 is radially deformable. When the spacer 44 is compressed, the spacer 44 expands outwardly. In this embodiment, the spacer 33 is not radially deformable, and the fourth opening 441 (shown in fig. 7) is not formed thereon.
As shown in fig. 1 and 2, the end cone 41 is engaged with the second taper surface 422 of the outer cone 42 through the first taper surface 412;
as shown in fig. 1 and 2, the outer taper sleeve 42 is provided with a plurality of outer taper sleeves 42 near the end taper sleeve 41, and the outer taper sleeves 42 are matched with the first taper surface 412 of the end taper sleeve 41 through the second taper surface 422. The outer cone 42 adjacent the inner cone 43 is engaged with the third cone 432 of the inner cone 43 by the second cone 422.
As shown in fig. 1 and 2, the inner tapered sleeve 43 is provided with at least one inner tapered sleeve 43 adjacent to the outer tapered sleeve 42, and is engaged with the second tapered surface 422 of the outer tapered sleeve 42 through a third tapered surface 432. The inner tapered sleeve 43 adjacent the spacer 44 is engaged by the third tapered surface 432 with the fourth tapered surface 442 of the spacer 44.
As shown in fig. 1 and 2, one end of the spacer 44 is engaged with the inner taper sleeve 43 through the fourth taper surface 442, and the other end is engaged with the taper portion 12 of the guide bar 10 through the fifth taper surface 443.
As shown in fig. 1 and 2, the cam handle 20 includes a cam portion 21 and a handle portion 22. The cam portion 21 is integrally formed with or fixedly connected to the handle portion 22. In the present embodiment, the cam portion 21 is integrally formed with the handle portion 22. The cam part 21 is connected with the guide rod 10 in a rotating way through a rotating shaft.
When the cam handle 20 is rotated, the cam handle 20 can squeeze the stopper 30, the stopper 30 transmits force to the expansion assembly 40, and the expansion assembly 40 is squeezed to deform: the end taper sleeve 41 and the inner taper sleeve 43 contract inwards to hold the guide rod 10 tightly, and the outer taper sleeve 42 expands outwards to form interference fit with the mounting hole, so that the stable connection effect is achieved. When the plug type quick-release expansion device needs to be disassembled, the cam handle 20 is rotated, the cam handle 20 does not squeeze the stopper 30 any more, the expansion assembly 40 can automatically relax after being squeezed by external force, and therefore the interference fit between the outer taper sleeve 42 and the mounting hole is not formed any more, and the plug type quick-release expansion device can be pulled out from the mounting hole.
While the invention has been described with reference to the above embodiments, the scope of the invention is not limited thereto, and the above components may be replaced with similar or equivalent elements known to those skilled in the art without departing from the spirit of the invention.
Claims (8)
1. A plug-pin quick release expansion device, comprising:
a guide rod (10) in a long shaft shape;
a cam handle (20) rotatably connected to one end of the guide bar (10);
the limiting piece (30) is sleeved on the guide rod (10) and is adjacent to the cam handle (20);
the expansion assembly (40) is sleeved on the guide rod (10), one end of the expansion assembly is abutted to the stopper (30), the other end of the expansion assembly is limited by the guide rod (10), and the expansion assembly (40) can be extruded to expand outwards and contract inwards to clasp the guide rod (10).
2. A plug-type quick release expansion device according to claim 1, characterized in that the guide rod (10) comprises a first rod body portion (11) and a second rod body portion (13), the diameter of the first rod body portion (11) is smaller than that of the second rod body portion (13), and the first rod body portion (11) and the second rod body portion (13) are connected through a tapered portion (12).
3. The latch-type quick release expansion device according to claim 2, wherein the expansion assembly (40) comprises:
the end taper sleeve (41) is movably sleeved on the first rod body part (11) and can deform along the radial direction, and the end taper sleeve (41) is adjacent to the stopper (30);
the outer taper sleeves (42) are movably sleeved on the first rod body part (11) and can deform along the radial direction, and the outer taper sleeves (42) can be matched with the end taper sleeves (41) through tapered surfaces;
at least one inner taper sleeve (43) movably sleeved on the first rod body part (11) and capable of deforming along the radial direction, wherein the inner taper sleeve (43) and the outer taper sleeve (42) can be matched through a taper surface;
the spacer bush (44) is movably sleeved on the first rod body part (11), one end of the spacer bush (44) is matched with the inner conical bush (43) through a conical surface, and the other end of the spacer bush (44) is matched with the conical part (12) through a conical surface;
when the cam handle (20) rotates around the guide rod (10) to press the limiting part (30), the end cone sleeve (41), the outer cone sleeve (42), the inner cone sleeve (43) and the spacer sleeve (44) are mutually pressed, so that the end cone sleeve (41) and the inner cone sleeve (43) are inwards contracted to hold the guide rod (10), and the outer cone sleeve (42) is outwards expanded.
4. A plug-type quick release expansion device according to claim 3, characterized in that the inner taper sleeve (43) and the outer taper sleeve (42) are arranged at intervals.
5. The plug-type quick release expansion device of claim 3,
the end taper sleeve (41) is provided with a first opening (411) which extends along the axial direction and penetrates through two ends of the end taper sleeve; the outer wall of the end taper sleeve (41) is provided with a first conical surface (412), and the first conical surface (412) is formed by narrowing the end, close to the stopper (30), of the end taper sleeve (41) towards the end far away from the stopper (30).
6. A plug type quick release expansion device according to claim 3, characterized in that the outer taper sleeve (42) is provided with a second opening (421) which extends along the axial direction and penetrates through two ends of the outer taper sleeve, two second taper surfaces (422) are respectively arranged on the inner walls of the two ends of the outer taper sleeve (42), and the second taper surfaces (422) are formed by inwards inclining the inner walls of the ends of the outer taper sleeve (42).
7. A plug-type quick release expansion device according to claim 3, wherein the inner collar (43) is provided with a third opening (431) extending axially and penetrating through both ends thereof, and third tapered surfaces (432) are respectively provided on outer walls of both ends of the inner collar (43), and the third tapered surfaces (432) are formed by inclining outwards from outer walls of the ends of the inner collar (43).
8. The plug-type quick release expansion device according to claim 1, characterized in that the stopper (30) has a transverse dimension greater than the radial dimension of the expansion assembly (40) after expansion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210803920.1A CN115030946A (en) | 2022-07-07 | 2022-07-07 | Bolt type quick-release expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210803920.1A CN115030946A (en) | 2022-07-07 | 2022-07-07 | Bolt type quick-release expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115030946A true CN115030946A (en) | 2022-09-09 |
Family
ID=83128453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210803920.1A Pending CN115030946A (en) | 2022-07-07 | 2022-07-07 | Bolt type quick-release expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115030946A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203655819U (en) * | 2013-12-02 | 2014-06-18 | 江西昌河航空工业有限公司 | Quick-detachment locating pressing pin |
| CN105020226A (en) * | 2015-08-12 | 2015-11-04 | 深圳亚太航空技术有限公司 | Tightening bolt assembly |
| CN107939799A (en) * | 2017-05-22 | 2018-04-20 | 深圳亚太航空技术有限公司 | Quick-detachable attachment device |
| CN211259310U (en) * | 2019-12-05 | 2020-08-14 | 中国直升机设计研究所 | Quick-release diameter-adjustable bolt capable of bearing pull shear |
| CN111577730A (en) * | 2020-05-26 | 2020-08-25 | 深圳亚太航空技术有限公司 | Quick-release expansion device |
| CN111594521A (en) * | 2020-05-26 | 2020-08-28 | 深圳亚太航空技术有限公司 | Quick-release expansion connecting device |
| CN212297191U (en) * | 2020-05-26 | 2021-01-05 | 深圳亚太航空技术有限公司 | Quick-release expansion connecting device |
| CN213017161U (en) * | 2020-05-26 | 2021-04-20 | 深圳亚太航空技术有限公司 | Quick-release expansion device |
-
2022
- 2022-07-07 CN CN202210803920.1A patent/CN115030946A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203655819U (en) * | 2013-12-02 | 2014-06-18 | 江西昌河航空工业有限公司 | Quick-detachment locating pressing pin |
| CN105020226A (en) * | 2015-08-12 | 2015-11-04 | 深圳亚太航空技术有限公司 | Tightening bolt assembly |
| CN107939799A (en) * | 2017-05-22 | 2018-04-20 | 深圳亚太航空技术有限公司 | Quick-detachable attachment device |
| CN211259310U (en) * | 2019-12-05 | 2020-08-14 | 中国直升机设计研究所 | Quick-release diameter-adjustable bolt capable of bearing pull shear |
| CN111577730A (en) * | 2020-05-26 | 2020-08-25 | 深圳亚太航空技术有限公司 | Quick-release expansion device |
| CN111594521A (en) * | 2020-05-26 | 2020-08-28 | 深圳亚太航空技术有限公司 | Quick-release expansion connecting device |
| CN212297191U (en) * | 2020-05-26 | 2021-01-05 | 深圳亚太航空技术有限公司 | Quick-release expansion connecting device |
| CN213017161U (en) * | 2020-05-26 | 2021-04-20 | 深圳亚太航空技术有限公司 | Quick-release expansion device |
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