CN221294171U - Self-locking spiral fixing device for horn - Google Patents
Self-locking spiral fixing device for horn Download PDFInfo
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- CN221294171U CN221294171U CN202323543577.0U CN202323543577U CN221294171U CN 221294171 U CN221294171 U CN 221294171U CN 202323543577 U CN202323543577 U CN 202323543577U CN 221294171 U CN221294171 U CN 221294171U
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- 125000004122 cyclic group Chemical group 0.000 description 1
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Abstract
The self-locking spiral fixing device for the mechanical arm comprises a main arm, a secondary arm and a connecting arm, wherein the connecting arm comprises a folding section and a fixing section, the folding section is fixedly connected with the main arm, and the fixing section is fixedly connected with the secondary arm; the folding section comprises a folding seat, a threaded ring, an extension arm and a mounting seat, one end of the folding seat is fixedly connected with the main arm, the other end of the folding seat is fixedly connected with the threaded ring, a notch is formed in the threaded ring, the extension arm is hinged to the folding seat and is positioned in the notch, the mounting seat is fixedly connected to the other end of the extension arm, and the fixing section is fixedly connected to the other end of the mounting seat; simple structure, and fixed effectual, connection main arm and minor arm that can be stable to through thread bush and spacing ring fastening connection, can not take place unexpected pine and take off, lead to the horn impaired.
Description
Technical Field
The utility model relates to the technical field of unmanned aerial vehicles, in particular to a self-locking spiral fixing device for a horn.
Background
Unmanned aerial vehicles ("UAVs") are unmanned aerial vehicles that are operated using radio remote control equipment and self-contained programmed control devices. Unmanned aerial vehicles are in fact a collective term for unmanned aerial vehicles, which from a technical point of view can be defined as: unmanned fixed wing aircraft, unmanned vertical takeoff and landing aircraft, unmanned airship, unmanned helicopter, unmanned multi-rotor aircraft, unmanned parachute wing aircraft, and the like. Compared with manned aircraft, it has the advantages of small size, low cost, convenient use, low requirement for battle environment, strong battlefield survivability, etc.
Among them, unmanned multi-rotor aircraft are most widely used in civil applications. Unmanned many rotor crafts have a plurality of horn and rotor of looks adaptation, but its shortcoming lies in the horn longer, and occupation space is bigger when parking, so all can adopt detachable horn basically, after unmanned aerial vehicle parks suitable position, dismantle the horn and put into the incubator and preserve.
This kind of mode also has certain defect, before unmanned aerial vehicle carried out the flight mission again, need again in proper order with unmanned aerial vehicle horn one-to-one installation back, waste time and energy, so still some unmanned aerial vehicle adopts folding horn mode, in operating condition, folding part needs to fix, adopts the thread bush to fix generally, but has the pine to take off the risk along with vibrations.
Disclosure of utility model
In order to solve the problems and overcome the defects in the prior art, the utility model provides a self-locking spiral fixing device for a horn, which comprises a main arm, a secondary arm and a connecting arm, wherein the connecting arm comprises a folding section and a fixing section, the folding section is fixedly connected with the main arm, and the fixing section is fixedly connected with the secondary arm;
The folding section comprises a folding seat, a threaded ring, an extension arm and a mounting seat, one end of the folding seat is fixedly connected with the main arm, the other end of the folding seat is fixedly connected with the threaded ring, a notch is formed in the threaded ring, the extension arm is hinged to the folding seat and is positioned in the notch, the mounting seat is fixedly connected to the other end of the extension arm, and the fixing section is fixedly connected to the other end of the mounting seat;
the outer part of the fixing section is sleeved with a thread bush which is meshed with the thread ring, and one end of the thread bush, which is far away from the folding section, is provided with a limit notch;
The outside of fixed section still overlaps and is equipped with the spacing ring, and the one end of spacing ring towards the thread bush is provided with spacing arch, spacing arch and spacing breach adaptation.
Further, the spacing ring is one section open-ended annular structure, and the opening part of spacing ring is provided with the bolt hole, and the inside bolt and the nut that are provided with of bolt hole can change the clearance distance of opening part through adjusting bolt and nut, and the minimum of clearance distance is greater than zero.
Further, the limit notch is provided with four limit notches, and the angle between every two adjacent limit notches is 90 degrees.
Further, the junction of fixed section and secondary arm still is provided with spacing limit, and the diameter of spacing limit is slightly greater than the diameter of spacing ring.
Further, the length of the thread bush is larger than that of the thread ring, and when the thread bush is screwed in place, namely one end of the thread ring is propped against the folding seat, the edge of the thread ring is positioned in the middle of the thread bush.
Further, the length of the extension arm is equal to that of the threaded ring, the outer side face of the extension arm is an arc face, and the radius of the arc face is equal to that of the arc of the root of the thread sleeve.
Further, the inside of screwed ring is provided with the recess, and the mount pad is provided with the mounting towards the one end of screwed ring, and the profile shape of mounting is the same with the profile shape of recess.
Further, the radius of the mounting seat is equal to the radius of the arc of the root of the thread ring.
Further, the inside through hole of thread bush is two segmentation structures, including screw hole and circular arc hole.
Further, the length of the threaded hole is equal to the sum of the lengths of the threaded sleeve and the mounting seat, and the threads on the inner surface of the threaded hole are meshed with the threaded ring;
The inner diameter of the circular arc hole is the same as the diameter of the connecting arm.
The beneficial effects of the utility model are as follows:
The self-locking spiral fixing device for the horn is simple in structure, good in fixing effect, capable of stably connecting the main arm and the secondary arm, and capable of being fixedly connected with the limiting ring through the threaded sleeve, and free of accidental loosening and damage to the horn.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a schematic view of the internal structure of the present utility model;
FIG. 4 is a schematic view of a folded state structure of the present utility model;
Drawings
1. The device comprises a main arm, 2, a secondary arm, 3, a connecting arm, 4, a limiting ring, 5, a limiting protrusion, 6, a threaded sleeve, 7, a limiting notch, 8, a folding seat, 41, bolt holes, 82, an extension arm, 83, a groove, 84, a fixing piece, 85, a mounting seat, 86, a threaded ring, 21, a limiting edge, 61 and anti-skid threads.
Detailed Description
In order to make the implementation purposes, technical solutions and advantages of the present utility model more clear, the present utility model will be described in more detail below with reference to fig. 1 to fig. 4 of the present utility model.
The utility model provides a self-locking spiral fixing device for a horn, which comprises a main arm 1, a secondary arm 2 and a connecting arm 3, wherein the connecting arm 3 comprises a folding section and a fixing section, the folding section is fixedly connected with the main arm 1, and the fixing section is fixedly connected with the secondary arm 2; the folding section comprises a folding seat 8, a threaded ring 86, an extension arm 82 and a mounting seat 85, one end of the folding seat 8 is fixedly connected with the main arm 1, the other end of the folding seat 8 is fixedly connected with the threaded ring 86, a notch is formed in the threaded ring 86, the extension arm 82 is hinged to the folding seat 8, the extension arm 82 is positioned in the notch, the other end of the extension arm 82 is fixedly connected with the mounting seat 85, and the other end of the mounting seat 85 is fixedly connected with a fixing section; the outer part of the fixed section is sleeved with a thread bush 6, the thread bush 6 is meshed with a thread ring 86, and one end of the thread bush 6 far away from the folding section is provided with a limit notch 7; a limiting ring 4 is sleeved outside the fixed section, a limiting bulge 5 is arranged at one end of the limiting ring 4 facing the thread bush 6, and the limiting bulge 5 is matched with the limiting notch 7; the limiting ring 4 is of an annular structure with one section of opening, a bolt hole is formed in the opening of the limiting ring 4, a bolt and a nut are arranged in the bolt hole, the gap distance at the opening can be changed through adjusting the bolt and the nut, and the minimum value of the gap distance is larger than zero; the limit gaps 7 are four in number, and the angles between the adjacent limit gaps 7 are 90 degrees; the connection part of the fixed section and the secondary arm 2 is also provided with a limit edge 21, and the diameter of the limit edge 21 is slightly larger than that of the limit ring 4; the length of the thread bush 6 is larger than that of the thread ring 86, and when the thread bush 6 is screwed in place, namely one end of the thread ring 86 abuts against the folding seat 8, the edge of the thread ring 86 is positioned in the middle of the thread bush 6; the length of the extension arm 82 is equal to the length of the thread ring 86, the outer side surface of the extension arm 82 is an arc surface, and the radius of the arc surface is equal to the radius of the arc of the root of the thread sleeve 6; the inside of the threaded ring 86 is provided with a groove 83, one end of the mounting seat 85 facing the threaded ring 86 is provided with a fixing piece 84, and the outline shape of the fixing piece 84 is the same as that of the groove 83; the radius of the mounting seat 85 is equal to the radius of the arc of the root of the thread ring 86; the internal through hole of the thread bush 6 is of a two-section structure and comprises a threaded hole and an arc hole; the length of the threaded hole is equal to the sum of the lengths of the threaded sleeve 6 and the mounting seat 85, and the threads on the inner surface of the threaded hole are meshed with the threaded ring 86; the inner diameter of the circular arc hole is the same as the diameter of the connecting arm 3.
An embodiment of the present utility model is as follows:
The arm self-locking spiral fixing device comprises a main arm 1, a secondary arm 2 and a connecting arm 3, wherein the connecting arm 3 comprises a folding section and a fixing section, the folding section is fixedly connected with the main arm 1, the fixing section is fixedly connected with the secondary arm 2, and folding can be realized through the folding section;
The folding section includes folding seat 8, folding seat 8's main part is cylindric structure for connect main arm 1, be provided with the screw thread on the outer facade of screwed ring 86, can mesh with thread bush 6, the inside through-hole of thread bush 6 is two segmentation structures, including screw hole and circular arc hole, the radius of mount pad 85 equals the root circular arc radius of screwed ring 86, mount pad 85 can form unified whole with screwed ring 86, the length of screw hole equals the sum of the length of thread bush 6 and mount pad 85, the screw thread of screw hole inner face meshes with screwed ring 86, after screwing up, the one end of screwed ring 6 supports on folding seat 8, the stage limit of screwed hole supports on mount pad 85, connect closely, can realize inseparable fixed connection, the stability of horn has been guaranteed.
One end of the folding seat 8 is fixedly connected with the main arm 1, the other end of the folding seat 8 is fixedly connected with the threaded ring 86, a notch is formed in the threaded ring 86, the folding seat 8 is hinged with the extension arm 82, the extension arm 82 is positioned in the notch, the other end of the extension arm 82 is fixedly connected with the mounting seat 85, and the other end of the mounting seat 85 is fixedly connected with the fixing section;
Extension arm 82 and mount pad 85 fixed connection, wherein the length of extension arm 82 equals the length of screwed ring 86, and the lateral surface of extension arm 82 is the cambered surface, and the radius of cambered surface equals the root circular arc radius of thread bush 6, when raising extension arm 82 folding to unanimous with the extension direction of horn, extension arm 82 laminating and embedding screwed ring 86 in the breach of screwed ring 86, can form complete cyclic annular whole, improved structural integrality and stability.
The inside of screwed ring 86 is provided with recess 83, and the one end of mount pad 85 towards screwed ring 86 is provided with mounting 84, and the contour shape of mounting 84 is the same with the contour shape of recess 83, when folding to main arm 1 and minor arm 2 be in on the same straight line, can imbed recess 83 by mounting 84, can form the structure of atress between the two, has improved structural strength.
The length of the thread bush 6 is greater than that of the thread ring 86, when the thread bush 6 is screwed in place, namely one end of the thread ring 86 abuts against the folding seat 8, the edge of the thread ring 86 is located in the middle of the thread bush 6, and the folding section and the fixing section are limited by the thread bush 6, so that the integrity of the thread bush is guaranteed.
The outer part of the fixed section is sleeved with a thread bush 6, the thread bush 6 is meshed with a thread ring 86, and one end of the thread bush 6 far away from the folding section is provided with a limit notch 7; the outside of fixed section still overlaps and is equipped with spacing ring 4, and spacing ring 4 is provided with spacing protruding 5 towards the one end of thread bush 6, spacing protruding 5 and spacing breach 7 adaptation, screw up thread bush 6 back in place, remove spacing ring 4 towards thread bush 6 to with spacing protruding 5 card income spacing breach 7, play spacing effect to thread bush 6.
The spacing ring 4 is one section open-ended annular structure, and the opening part of spacing ring 4 is provided with bolt hole 41, and the inside bolt and the nut that are provided with of bolt hole 41 can change the clearance distance of opening part through adjusting bolt and nut, and clearance distance's minimum is greater than zero, after spacing breach 7 is gone into with spacing protruding 5 card, screws up bolt and nut for the position relative fixation of spacing ring 4 and fixed section plays the effect of fixed thread bush 6.
In actual use, the threaded sleeve 6 is screwed in place, and due to vibration, the threaded sleeve 6 tends to loosen, and at this time, the threaded sleeve 6 generates two movement forms, including rotation and translation.
The movement trend of rotation is limited by the clamping of the limiting protrusion 5 and the limiting notch 7, and the movement trend of translation is limited by the screwed limiting ring 4, so that the fastening of the thread bush 6 is ensured.
The limiting notches 7 are four in number, and the angles between the adjacent limiting notches 7 are 90 degrees, so that the limiting ring 4 is more convenient to install.
The friction lines are arranged on the outer surface of the fixing section, so that the effect of improving the friction force between the limiting ring 4 and the fixing section can be achieved, and the stability is further guaranteed.
The junction of fixed section and secondary arm 2 still is provided with spacing limit 21, and the diameter of spacing limit 21 is slightly greater than the diameter of spacing ring 4, can make spacing ring 4 can not follow the fixed section pine and take off.
The inner diameter of the circular arc hole in the thread bush 6 is the same as the diameter of the connecting arm 3, so that the connection stability can be further improved.
The outer surface of the thread bush 6 is provided with anti-slip threads 61, which are more convenient when rotating.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a horn auto-lock spiral fixing device which characterized in that: the connecting arm comprises a folding section and a fixing section, wherein the folding section is fixedly connected with the main arm, and the fixing section is fixedly connected with the secondary arm;
the folding section comprises a folding seat, a threaded ring, an extension arm and a mounting seat, one end of the folding seat is fixedly connected with the main arm, the other end of the folding seat is fixedly connected with the threaded ring, a notch is formed in the threaded ring, the folding seat is hinged with the extension arm, the extension arm is positioned in the notch, the other end of the extension arm is fixedly connected with the mounting seat, and the other end of the mounting seat is fixedly connected with the fixing section;
The outer part of the fixing section is sleeved with a thread bush, the thread bush is meshed with the thread ring, and one end of the thread bush, which is far away from the folding section, is provided with a limiting notch;
the outside of fixed section still overlaps and is equipped with the spacing ring, the one end of spacing ring towards the thread bush is provided with spacing arch, spacing arch and spacing breach adaptation.
2. The horn self-locking screw fixture of claim 1, wherein: the limiting ring is of an annular structure with one section being open, a through hole is formed in the opening of the limiting ring, a bolt and a nut are arranged in the through hole, the gap distance of the opening can be changed through adjusting the bolt and the nut, and the minimum value of the gap distance is larger than zero.
3. The horn self-locking screw fixture of claim 1, wherein: the limiting notches are four in number, and the angles between the adjacent limiting notches are 90 degrees.
4. The horn self-locking screw fixture of claim 1, wherein: the fixed section still is provided with spacing limit with inferior arm junction, the diameter of spacing limit is slightly greater than the diameter of spacing ring.
5. The horn self-locking screw fixture of claim 1, wherein: the length of the thread sleeve is greater than that of the thread ring, and when the thread sleeve is screwed in place, namely one end of the thread ring is propped against the folding seat, the edge of the thread ring is positioned in the middle of the thread sleeve.
6. The horn self-locking screw fixture of claim 1, wherein: the length of the extension arm is equal to that of the threaded ring, the outer side face of the extension arm is an arc face, and the radius of the arc face is equal to that of the root arc of the threaded sleeve.
7. The horn self-locking screw fixture of claim 1, wherein: the inside of screwed ring is provided with the recess, the mount pad is provided with the mounting towards the one end of screwed ring, the contour shape of mounting is the same with the contour shape of recess.
8. The horn self-locking screw fixture of claim 1, wherein: the radius of the mounting seat is equal to the radius of the arc of the root of the thread ring.
9. The horn self-locking screw fixture of claim 1, wherein: the internal through hole of the thread bush is of a two-section structure and comprises a threaded hole and an arc hole.
10. The horn self-locking screw fixture of claim 9, wherein: the length of the threaded hole is equal to the sum of the lengths of the threaded sleeve and the mounting seat, and the threads on the inner surface of the threaded hole are meshed with the threaded ring;
the inner diameter of the circular arc hole is the same as the diameter of the connecting arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323543577.0U CN221294171U (en) | 2023-12-25 | 2023-12-25 | Self-locking spiral fixing device for horn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323543577.0U CN221294171U (en) | 2023-12-25 | 2023-12-25 | Self-locking spiral fixing device for horn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221294171U true CN221294171U (en) | 2024-07-09 |
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ID=91735020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323543577.0U Active CN221294171U (en) | 2023-12-25 | 2023-12-25 | Self-locking spiral fixing device for horn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221294171U (en) |
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2023
- 2023-12-25 CN CN202323543577.0U patent/CN221294171U/en active Active
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