CN-224197991-U - Quick detach oar presss from both sides mechanism of unmanned aerial vehicle screw

Abstract

The utility model provides a quick detach oar presss from both sides mechanism of unmanned aerial vehicle screw, unmanned aerial vehicle includes screw, screw motor, is provided with first installation screw, second installation screw on this screw, the screw motor respectively, the oar presss from both sides the mechanism and includes elastic lock piece, the base, rotatory latch, spacing connecting piece, the lid, first reset spring, second reset spring, screw motor and unmanned aerial vehicle horn pre-installation are fixed, screw and lid pre-installation are fixed, but through the axial spacing cooperation of the insertible shaft part of lid and rotatory latch, accomplish axial interlocking when lid inserts shaft part and rotatory latch, this axial interlocking has further ensured the gomphosis of synchronization groove and synchronous lug and keep again for with the coaxial rotatory base of screw motor, spacing connecting piece can drive lid, screw and carry out synchronous rotation.

Inventors

• WU PEIGANG

Assignees

• 温州飞越航空科技有限公司

Dates

Publication Date

20260505

Application Date

20250520

Claims (7)

1. 1. The quick-dismantling propeller clamping mechanism of the unmanned aerial vehicle propeller is characterized in that the unmanned aerial vehicle comprises a propeller and a propeller motor, wherein a first installation screw hole and a second installation screw hole are respectively formed in the propeller and the propeller motor, and the propeller clamping mechanism comprises an elastic locking piece, a base, a rotary locking piece, a limiting connecting piece, a cover piece, a first reset spring and a second reset spring; The base is fixed with a second mounting screw hole of the propeller motor by a screw and coaxially and synchronously rotates, a plurality of fourth mounting screw holes are formed in the base, the rotary lock piece is coaxially and rotatably matched with the base, the rotary lock piece comprises an upper locking work position rotating direction and an unlocking work position rotating direction, an axle center hole is formed in the rotary lock piece in a penetrating mode along the axial direction, a plurality of arc-shaped through grooves are formed in the rotary lock piece in a penetrating mode at equal intervals around the circle center, the limiting connecting piece comprises a circular ring portion, the circular ring portion is located between the circumferential positions of the rotary lock piece and the shaft piece, sliding fit is conducted between the circular ring portion and the axial end face of the rotary lock piece, the inner diameter of the circular ring portion is larger than the diameter of the axle center hole, inserting columns extending through the arc-shaped through grooves are formed in the circular ring portion, and each inserting needle is respectively fixed with the fourth mounting screw holes by screws; One end of the cover member is screwed with a first mounting screw hole of the propeller and is coaxially arranged with the propeller, an inserting shaft part which is inserted into the axial limiting groove and a plurality of synchronous grooves which are arranged around the inserting shaft part are arranged at the axial center position of the other end of the cover member, and a plurality of synchronous protruding blocks which are embedded with the circular ring part are arranged at the positions and the shapes corresponding to the synchronous grooves; The second reset spring is arranged in the rotary lock piece and drives the rotary lock piece to continuously rotate in the upward locking work position rotating direction, the elastic lock piece and the first reset spring are arranged at the axle center hole, and the first reset spring drives the elastic lock piece and the inserting shaft part to perform separable axial interlocking, so that the synchronous groove and the synchronous lug are kept embedded; The screw motor drives the base and the limiting connecting piece to synchronously rotate, the cover piece and the screw are driven by the synchronous lug to synchronously rotate, and the cover piece and the rotating locking piece are axially assembled in a detachable mode.
2. 2. The quick release propeller clamping mechanism of an unmanned aerial vehicle propeller according to claim 1, wherein the elastic lock piece comprises a central shaft part, a spring hole is arranged at the axis of one end of the central shaft part, and a lug part is arranged at the peripheral surface of the central shaft part along the radial direction; The base comprises a first end face adjacent to the second installation screw hole and a second end face at the other end, a third installation counter bore penetrating through the first end face and the second end face and aligned with the second installation screw hole is formed in the base, an upper locking groove matched with the cross section of the elastic locking piece in shape is formed in the center of the second end face, the axial depth of the upper locking groove is matched with the axial thickness of the lug part, the lug part of the elastic locking piece is inserted into the upper locking groove, and the first return spring is compressed and arranged between the spring hole and the bottom surface of the upper locking groove to drive the lug part to axially overflow the upper locking groove; The rotary lock piece comprises a third end face adjacent to the second end face and a fourth end face at the other end, an unlocking groove is formed in the center of the third end face, the shape of the unlocking groove is consistent with that of the upper locking groove, the depth of the unlocking groove is smaller than the thickness of the lug part, the radial angle of the unlocking groove is staggered with that of the upper locking groove, an axle center hole penetrating to the fourth end face is formed in the center of the unlocking groove, and the central shaft part of the elastic lock piece extends into the axle center hole; An axial limiting groove communicated with the axial center hole is formed in the center of the fourth end face, a plurality of first radial extending convex blocks are arranged at the notch of the axial limiting groove at equal intervals around the center of the circle, and insertion gaps are formed among the plurality of first radial extending convex blocks; the fourth end face is provided with a plurality of arc-shaped through grooves penetrating through the third end face at equal intervals around the circle center, the diameters of the arc-shaped through grooves are larger than those of the axial limiting grooves, the arc-shaped through grooves comprise locking end parts and unlocking end parts, and the numerical value of the included angle between the locking end parts and the unlocking end parts is consistent with the numerical value of the radial angle staggered between the unlocking grooves and the locking grooves; The limiting connecting piece comprises a circular ring part, the circular ring part comprises a fifth end face adjacent to the fourth end face and a sixth end face at the other end, the fifth end face is provided with a plurality of inserting posts at equal intervals around the circle center, the inserting posts extend into the arc-shaped through grooves respectively, a second reset spring is arranged in each arc-shaped through groove and is positioned between the inserting post and the unlocking end part, and the second reset spring continuously drives the rotary locking piece to rotate towards the direction of the inserting post close to the locking end part; the sixth end face is provided with a plurality of synchronous lugs along the axial direction; The inserted column penetrates through the arc-shaped through groove to be adjacent to the second end face, the second end face and the inserted column are respectively provided with a fourth installation screw hole and a fifth installation screw hole in an aligned mode, and the inserted column is fixed to the second end face through screws; The cover piece comprises a seventh end face adjacent to the sixth end face and an eighth end face at the other end, the seventh end face is provided with an insertion shaft part which is inserted into the axial limiting groove, the diameter of the insertion shaft part is smaller than or equal to the outer diameter of the first radial extending convex block, the outer peripheral surface is radially and equally provided with a plurality of second radial extending convex blocks, the outer diameters of the second radial extending convex blocks are matched with the diameter of the axial limiting groove, and the second radial extending convex blocks enter the axial limiting groove through insertion gaps; The seventh end face is provided with a plurality of synchronous grooves which are respectively embedded in the synchronous convex blocks, the propeller motor drives the base and the limiting connecting piece to rotate, and the embedded synchronous convex blocks drive the cover piece and the propeller to rotate; the eighth end face is provided with a sixth installation screw hole aligned with the first installation screw hole of the screw propeller and is fixed with the screw propeller; the inserting shaft part of the cover part axially penetrates into the axial limiting groove, the pressing-down is carried out on the central shaft part, the driving lug part leaves the unlocking groove and enters the upper locking groove, the rotating lock part loses the limit of the lug part, the second reset spring drives the first radial extending lug to rotate to a path along which the second radial extending lug axially breaks away, and the blocking inserting shaft part is kept to break away from the axial limiting groove.
3. 3. The quick release propeller clip mechanism of an unmanned aerial vehicle propeller as set forth in claim 2, wherein the second radially extending projection of the insertion shaft portion comprises a peripheral surface portion and an arc-shaped top surface portion, the diameter of the peripheral surface portion is matched with the diameter of the axial limiting groove, the arc-shaped top surface portion faces one side of the propeller and comprises an arc-height point relatively close to the propeller and an arc-bottom point relatively far away from the propeller, the arc-bottom point faces the locking working position rotation direction of the first radially extending projection, and the first radially extending projection is guided to slide over the second radially extending projection along the arc-shaped top surface portion.
4. 4. The quick release propeller clamping mechanism of the unmanned aerial vehicle propeller of claim 3, wherein a guide shaft is arranged at the center of the circle of the eighth end face, the sixth installation screw hole is arranged around the guide shaft, and a guide hole is formed in the propeller corresponding to the position and the diameter of the guide post.
5. 5. The quick release propeller clamping mechanism of an unmanned aerial vehicle propeller of claim 4, wherein the insert pin is provided with a mounting groove which is embedded with the second return spring, and the radial width of the circular ring part covers the arc-shaped through groove notch.
6. 6. The quick release propeller clamping mechanism of an unmanned aerial vehicle propeller according to claim 5, wherein knurling or friction lines are formed on the outer peripheral surface of the rotary lock, a round table is arranged on the second end face of the base, and a splicing groove in insertion and rotation fit with the round table is formed on the third end face of the rotary lock.
7. 7. The quick release propeller clamping mechanism of an unmanned aerial vehicle propeller according to claim 6, wherein the locking work position of the rotary lock member has the same rotation direction as the flight rotation direction of the propeller motor and the propeller.

Description

Quick detach oar presss from both sides mechanism of unmanned aerial vehicle screw Technical Field The utility model relates to the technical field of unmanned aerial vehicles, in particular to a quick-dismantling propeller clamping mechanism of an unmanned aerial vehicle propeller. Background The screw of unmanned aerial vehicle is the wearing part of unmanned aerial vehicle flight in-process, can lead to damaging because of colliding with and need change. Moreover, the unmanned aerial vehicle is required to be replaced by propellers of different types according to factors such as flight task characteristics, environmental condition characteristics and the like in the face of different flight conditions. The prior art has the problems that in order to ensure stable operation of the propeller, the traditional propeller and a motor are fixed by adopting a plurality of fasteners such as screws, a specific tool is required to be carried when the propeller needs to be disassembled, the propeller can be disassembled and replaced after a certain time of operation, the efficiency is low, and the accident that the tool is lost exists. The unmanned aerial vehicle can not be adapted to the requirements of severe environment tasks, and the requirement of quickly replacing the propeller can be met. Moreover, when the unmanned aerial vehicle is stored, the storage space can be optimized by detaching the propeller, and the propeller is protected. Therefore, the connection structure design between the unmanned aerial vehicle propeller and the motor needs to be changed, so that the unmanned aerial vehicle propeller can be stably interlocked to operate at a high speed, and meanwhile, the interlocking structure design of quick unlocking and locking which is easy and convenient to operate is provided, and the dismounting efficiency of the propeller is improved. Disclosure of utility model The utility model provides a quick-dismantling propeller clamping mechanism of an unmanned aerial vehicle propeller, which aims to solve the defects of the technology. According to the technical scheme, the quick-dismantling propeller clamp mechanism of the unmanned aerial vehicle propeller comprises a propeller and a propeller motor, wherein a first installation screw hole and a second installation screw hole are respectively formed in the propeller and the propeller motor, and the propeller clamp mechanism comprises an elastic locking piece, a base, a rotary locking piece, a limiting connecting piece, a cover piece, a first reset spring and a second reset spring; The base is fixed with a second mounting screw hole of the propeller motor by a screw and coaxially and synchronously rotates, a plurality of fourth mounting screw holes are formed in the base, the rotary lock piece is coaxially and rotatably matched with the base, the rotary lock piece comprises an upper locking work position rotating direction and an unlocking work position rotating direction, an axle center hole is formed in the rotary lock piece in a penetrating mode along the axial direction, a plurality of arc-shaped through grooves are formed in the rotary lock piece in a penetrating mode at equal intervals around the circle center, the limiting connecting piece comprises a circular ring portion, the circular ring portion is located between the circumferential positions of the rotary lock piece and the shaft piece, sliding fit is conducted between the circular ring portion and the axial end face of the rotary lock piece, the inner diameter of the circular ring portion is larger than the diameter of the axle center hole, inserting columns extending through the arc-shaped through grooves are formed in the circular ring portion, and each inserting needle is respectively fixed with the fourth mounting screw holes by screws; One end of the cover member is screwed with a first mounting screw hole of the propeller and is coaxially arranged with the propeller, an inserting shaft part which is inserted into the axial limiting groove and a plurality of synchronous grooves which are arranged around the inserting shaft part are arranged at the axial center position of the other end of the cover member, and a plurality of synchronous protruding blocks which are embedded with the circular ring part are arranged at the positions and the shapes corresponding to the synchronous grooves; The second reset spring is arranged in the rotary lock piece and drives the rotary lock piece to continuously rotate in the upward locking work position rotating direction, the elastic lock piece and the first reset spring are arranged at the axle center hole, and the first reset spring drives the elastic lock piece and the inserting shaft part to perform separable axial interlocking, so that the synchronous groove and the synchronous lug are kept embedded; The screw motor drives the base and the limiting connecting piece to synchronously rotate, the cover piece and the screw are driven by the synchronous lu