CN221049969U - Arm joint locking and loosening stopping structure - Google Patents
Arm joint locking and loosening stopping structure Download PDFInfo
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- CN221049969U CN221049969U CN202322825113.2U CN202322825113U CN221049969U CN 221049969 U CN221049969 U CN 221049969U CN 202322825113 U CN202322825113 U CN 202322825113U CN 221049969 U CN221049969 U CN 221049969U
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Abstract
The utility model belongs to the technical field of unmanned aerial vehicles, and discloses a horn joint locking and loosening stopping structure. According to the utility model, the thread sleeve is tightly connected with the central disc inner part in a threaded manner, so that the thread sleeve presses the horn inner part, the horn assembly and the central disc cantilever assembly are firmly connected, meanwhile, the flange edge of the thread sleeve is pressed by the loosening-stopping limiting support of the cam pressing part, even if the thread sleeve has a tendency of loosening outwards, the pressing force of the loosening-stopping limiting support can be increased, and the loosening of the thread sleeve caused by vibration can be effectively prevented, so that the flight safety and reliability of the unmanned aerial vehicle are improved.
Description
Technical Field
The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to an unmanned aerial vehicle arm joint locking and loosening stopping structure.
Background
Unmanned aerial vehicles have obtained wide application in various fields such as entertainment consumption, agriculture and forestry plant protection, inspection and mapping, security protection, emergency rescue, material transportation, etc. The horn joint connection spare is the core component of unmanned aerial vehicle horn connection center dish, and its design is reliable and the dismouting of being convenient for accomodate, has historically been unmanned aerial vehicle structural design's difficult point and pain point. The traditional thread bush assembly mode connection structure can enable the connection between the horn and the center plate to be stable, but is difficult to prevent loosening.
Therefore, the design of the structure which can be firmly connected and can effectively prevent the unmanned aerial vehicle from vibrating to loosen the joint part of the arm is very necessary.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a horn joint locking and loosening-preventing structure which can be used for stably installing and connecting and preventing a horn joint part of an unmanned aerial vehicle from loosening.
In order to solve the problems, the utility model provides a horn joint locking and loosening prevention structure, which comprises a center disc assembly, a horn assembly and a thread sleeve, wherein the center disc assembly comprises a center disc cantilever, a center disc inner part, a cam pressing part and a rotating shaft pin; the central disc inner part consists of a central disc inner part bonding surface, an lug structure, a cam compression groove, an external thread structure and a limiting boss; the center plate cantilever is adhered to the center plate inner piece adhesive surface; the cam pressing piece comprises a pressing piece boss, a rotating shaft pin through hole, a loosening stopping limiting bracket and a cam handle, and the rotating shaft pin penetrates through the rotating shaft pin through hole to install the cam pressing piece on the lug structure; and the limiting boss is provided with a transverse limiting boss and a vertical limiting boss.
Further, the horn assembly comprises a horn trim and a horn; the horn internals include horn internals flange, spacing groove structure and horn internals bonding face, the horn bonds on the horn internals bonding face, spacing groove structure includes horizontal spacing face and vertical spacing groove.
Further, the thread kit comprises a thread kit flange and an internal thread structure; the inner thread structure is in screwing fit with the outer thread structure to compress the flange of the inner part of the horn, so that the inner part of the center plate, the inner part of the horn and the thread suite are mutually locked.
Further, the central disc inner piece is matched with the transverse limiting surface through the transverse limiting boss; to limit the mutual lateral movement of the central disc trim and the horn trim; the central disc inner piece is matched with the vertical limiting groove through the vertical limiting boss; to limit the mutual vertical movement of the central disc trim and the horn trim.
Further, a vertical surface for bonding and positioning the inner part of the central disc and the cantilever of the central disc is arranged on the transverse limiting boss; the transverse limiting surface is used for bonding and positioning the inner part of the horn and the horn.
Further, when the cam pressing piece is in a free state, the angle between the connecting line of the arc center of the cam handle and the center of the rotating shaft pin and the horizontal line is theta 1; when the cam pressing piece is just contacted with the cam pressing groove, the angle between the connecting line of the arc center of the cam handle and the center of the rotating shaft pin and the horizontal line is theta 2; when the cam pressing piece is in interference fit with the cam pressing groove, the angle between the connecting line of the arc center of the cam handle and the center of the rotating shaft pin and the horizontal line is theta 3, wherein theta 1＞θ2＞θ3 is the same, the loosening-stopping limiting support presses the flange of the thread sleeve, and when the thread sleeve is loosened outwards, the pressing force of the loosening-stopping limiting support can be increased.
According to the utility model, the threaded sleeve is in threaded connection and close fit with the central disc inner part, and the threaded sleeve presses the horn inner part, so that the horn assembly and the central disc assembly are firmly connected; the flange edge of the thread sleeve is tightly pressed by the loosening-stopping limiting support of the cam pressing piece, and when the thread sleeve has a tendency of loosening outwards, the pressing force of the loosening-stopping limiting support is increased, so that loosening of the thread sleeve caused by vibration can be effectively prevented, and further the flight safety and reliability of the unmanned aerial vehicle are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an overall assembly of an embodiment of the present utility model;
FIG. 2 is an expanded schematic view of the overall components of an embodiment of the present utility model;
FIG. 3 is a schematic overall cross-sectional view of an embodiment of the present utility model;
FIG. 4 is a detailed illustration of the center plate trim, cam compression member, and horn trim of an embodiment of the present utility model;
fig. 5 is a schematic view of a cam pressing member pressing process according to an embodiment of the present utility model.
Reference numerals illustrate: 10 center plate assembly, 20 horn assembly, 30 screw thread external member, 11 center plate cantilever, 12 center plate internal member, 13 cam compressing member, 14 pivot pin, 121 center plate internal member bonding surface, 122 tab structure, 123 cam compressing groove, 124 external screw thread structure, 125 spacing boss, 1251 lateral spacing boss, 1252 vertical spacing boss, 131 compressing member boss, 132 pivot pin through hole, 133 loosening stopping spacing bracket, 134 cam handle, 21 horn internal member, 22 horn, 211 horn internal member flange, 212 spacing groove structure, 213 horn internal member bonding surface, 2121 lateral spacing surface, 2122 vertical spacing groove, 31 screw thread external member flange, 32 internal screw thread structure.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Referring to fig. 1-5, the present embodiment provides a locking and loosening stopping structure for a horn joint, which mainly aims at the problem that a conventional unmanned aerial vehicle horn joint connector adopts a threaded sleeve assembly type connecting structure, and the connection between a horn and a central disc is loosened due to the vibration of the unmanned aerial vehicle.
As shown in fig. 1, the arm joint locking and loosening stopping structure of the present embodiment includes a central disc assembly 10, an arm assembly 20 and a thread sleeve 30, wherein the central disc assembly 10 is connected with the arm assembly 20 through the thread sleeve 30.
As shown in fig. 2 and 3, the center plate assembly 10 of the present embodiment includes a center plate cantilever 11, a center plate inner 12, a cam pressing member 13, and a roller pin 14; the horn assembly 20 includes a horn inner 21 and a horn 22; the thread set 30 comprises a thread set flange 31 and an internal thread structure 32.
As shown in fig. 4, in this embodiment, the inner core 12 is formed by a bonding surface 121 of the inner core, a tab structure 122, a cam pressing groove 123, an external thread structure 124, and a limiting boss 125, where a lateral limiting boss 1251 and a vertical limiting boss 1252 are provided on the limiting boss 125.
The cam pressing member 13 includes a pressing member boss 131, a rotation shaft pin through hole 132, a loosening prevention limit bracket 133, and a cam handle 134.
The horn inner 21 comprises a horn inner flange 211, a limiting groove structure 212 and a horn inner bonding surface 213, the horn 22 is bonded on the horn inner bonding surface 213, and the limiting groove structure 212 comprises a transverse limiting surface 2121 and a vertical limiting groove 2122.
The internal thread structure 32 and the external thread structure 124 are screwed and matched mutually, so that the flange 211 of the inner part of the horn is pressed tightly, and the inner part 12 of the central disc, the inner part 21 of the horn and the thread sleeve 30 are mutually locked.
The center plate cantilever 11 is adhered to the center plate inner member adhesion surface 121; the roller pin 14 passes through the roller pin hole 132 to mount the cam compression member 13 to the tab structure 122.
Specifically, the central disc inner part 12 is matched with the transverse limiting surface 2121 of the limiting groove structure 212 of the horn inner part 21 through the transverse limiting boss 1251 of the limiting boss 125 to prevent the central disc inner part 12 and the horn inner part 21 from moving transversely; simultaneously, the vertical limit boss 1252 arranged on the limit boss 125 of the central disc inner part 12 is matched with the vertical limit groove 2122 arranged on the limit groove structure 212 arranged on the horn inner part 21, so that the central disc inner part 12 and the horn inner part 21 are prevented from mutually generating vertical movement, the central disc inner part 12 is matched with the limit groove structure 212 arranged on the horn inner part 21 through the limit boss 125, and the central disc inner part 12 and the horn inner part 21 are also prevented from mutually generating rotation.
The vertical surface of the transverse limiting boss 1251 arranged on the limiting boss 125 is used for vertically positioning the inner part 12 of the central disc so as to facilitate the bonding positioning of the inner part 12 of the central disc and the cantilever 11 of the central disc; the transverse limiting surface 2121 of the limiting groove structure 212 of the inner part 21 of the arm is used for vertically positioning the inner part 21 of the arm so as to facilitate the bonding positioning of the inner part 21 of the arm and the arm 22.
In this embodiment, the internal thread structure 32 of the thread sleeve 30 and the external thread structure 124 of the central disc inner member 12 are screwed together, so as to compress the flange 211 of the inner member 21 of the inner member of the arm, so that the central disc inner member 12, the inner member 21 of the arm and the thread sleeve 30 are mutually locked.
In the embodiment, the thread sleeve is tightly connected with the central disc inner part in a threaded manner, and the thread sleeve presses the horn inner part, so that the horn assembly and the central disc assembly are firmly connected.
As shown in fig. 5, in the present embodiment, when the cam pressing member 13 is in a free state, the angle between the connecting line between the arc center of the cam handle 134 and the center of the rotation shaft pin 14 and the horizontal line is θ 1, when the cam pressing member 13 is just contacted with the cam pressing groove 123 provided in the inner member 12 of the center plate, the angle between the connecting line between the arc center of the cam handle 134 and the center of the rotation shaft pin 14 and the horizontal line is θ 2, and when the cam pressing member 13 is in interference fit with the cam pressing groove 123 provided in the inner member 12 of the center plate, the angle between the connecting line between the arc center of the cam handle 134 and the center of the rotation shaft pin 14 and the horizontal line is θ 3, wherein θ 1＞θ2＞θ3 is the loosening-stopping limiting bracket 133 provided in the cam pressing member 13 presses the flange 31 of the screw sleeve 30, and even if the screw sleeve 30 has a tendency to be loosened outwards, the pressing force of the loosening-stopping limiting bracket 133 is increased, so that the screw sleeve 30 can be effectively prevented from loosening due to vibration.
The loose-stopping limiting support of the cam pressing piece compresses tightly the flange edge of the thread sleeve piece, the thread sleeve piece has the tendency of outwards loosening even if the thread sleeve piece is subjected to the compression force of the loose-stopping limiting support, the loosening of the thread sleeve piece caused by vibration can be effectively prevented, and therefore the flight safety and reliability of the unmanned aerial vehicle are improved.
The embodiments of the utility model have been described in detail above, but they are merely examples, and the utility model is not limited to the embodiments described above. It will be apparent to those skilled in the art that any equivalent modifications or substitutions to this utility model are within the scope of the utility model, and therefore, all equivalent changes and modifications, improvements, etc. that do not depart from the spirit and scope of the principles of the utility model are intended to be covered by this utility model.
Claims (6)
1. The utility model provides a horn joint locking and locking structure that loosens, includes central disk subassembly (10), horn subassembly (20) and screw thread external member (30), its characterized in that: the center disc assembly (10) comprises a center disc cantilever (11), a center disc inner part (12), a cam pressing part (13) and a rotating shaft pin (14); the central disc inner part (12) consists of a central disc inner part bonding surface (121), an lug structure (122), a cam compression groove (123), an external thread structure (124) and a limiting boss (125); the center disc cantilever (11) is adhered to the center disc inner piece adhesion surface (121); the cam pressing piece (13) comprises a pressing piece boss (131), a rotating shaft pin through hole (132), a loosening stopping limiting bracket (133) and a cam handle (134), and the rotating shaft pin (14) penetrates through the rotating shaft pin through hole (132) to install the cam pressing piece (13) on the lug structure (122); and a transverse limiting boss (1251) and a vertical limiting boss (1252) are arranged on the limiting boss (125).
2. The horn joint locking and loosening prevention structure as claimed in claim 1, wherein: the horn assembly (20) comprises a horn inner part (21) and a horn (22); the horn internals (21) comprise a horn internals flange (211), a limiting groove structure (212) and a horn internals bonding surface (213), the horn (22) is bonded on the horn internals bonding surface (213), and the limiting groove structure (212) comprises a transverse limiting surface (2121) and a vertical limiting groove (2122).
3. The horn joint locking and loosening prevention structure as claimed in claim 2, wherein: the thread sleeve (30) comprises a thread sleeve flange (31) and an internal thread structure (32); the inner thread structure (32) is in screwing fit with the outer thread structure (124) to compress the horn inner part flange (211) so as to enable the center disc inner part (12), the horn inner part (21) and the thread sleeve member (30) to be mutually locked.
4. The horn joint locking and loosening prevention structure as claimed in claim 3, wherein: the central disc inner part (12) is matched with the transverse limiting surface (2121) through the transverse limiting boss (1251); to limit the mutual lateral movement of the central disc trim (12) and the horn trim (21); the central disc inner part (12) is matched with the vertical limit groove (2122) through the vertical limit boss (1252); to limit the mutual vertical movement of the central disc trim (12) and the horn trim (21).
5. The horn joint locking and loosening prevention structure as claimed in claim 4, wherein: a vertical surface for bonding and positioning the central disc inner part (12) and the central disc cantilever (11) is arranged on the transverse limiting boss (1251); the transverse limiting surface (2121) is used for bonding and positioning the horn inner part (21) and the horn (22).
6. The horn joint locking and loosening prevention structure as claimed in claim 5, wherein: when the cam pressing piece (13) is in a free state, the angle between the connecting line of the arc center of the cam handle (134) and the center of the rotating shaft pin (14) and the horizontal line is theta 1; when the cam pressing piece (13) is just contacted with the cam pressing groove (123), the angle between the connecting line of the arc center of the cam handle (134) and the center of the rotating shaft pin (14) and the horizontal line is theta 2; when the cam pressing piece (13) is in interference fit with the cam pressing groove (123), the angle between the connecting line of the arc center of the cam handle (134) and the center of the rotating shaft pin (14) and the horizontal line is theta 3, wherein theta 1＞θ2＞θ3 is the angle, at the moment, the loosening stopping limiting bracket (133) presses the thread sleeve flange (31), and when the thread sleeve (30) is loosened outwards, the pressing force of the loosening stopping limiting bracket (133) can be increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322825113.2U CN221049969U (en) | 2023-10-20 | 2023-10-20 | Arm joint locking and loosening stopping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322825113.2U CN221049969U (en) | 2023-10-20 | 2023-10-20 | Arm joint locking and loosening stopping structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221049969U true CN221049969U (en) | 2024-05-31 |
Family
ID=91223092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322825113.2U Active CN221049969U (en) | 2023-10-20 | 2023-10-20 | Arm joint locking and loosening stopping structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221049969U (en) |
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2023
- 2023-10-20 CN CN202322825113.2U patent/CN221049969U/en active Active
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