A fast folding anti-loosening joint mechanism

Abstract

The present invention discloses a fast-folding anti-loosening joint mechanism, comprising a center disk internal component assembly I, an arm internal component assembly II, and a threaded kit assembly III; the center disk internal component assembly I and the arm internal component assembly II are rotationally connected via a screw shaft, the threaded kit assembly III is sleeved on the arm internal component assembly II, and the arm internal component assembly II is threadedly connected to the center disk internal component assembly I; the threaded kit assembly III comprises a threaded kit, an anti-loosening rubber ring, a rubber ring pressing block, and a screw, and the threaded kit, the anti-loosening rubber ring, and the rubber ring pressing block are fixed together by screws. The fast-folding anti-loosening joint mechanism of the present invention has a simple structure and is easy to operate. It effectively prevents the connection between the arm and the fuselage of a multi-rotor drone from loosening easily in the working state and the vibration of the drone, thereby avoiding the instability of the multi-rotor drone and the fatal phenomenon of the explosion of the drone.

Description

Technical Field

[0001] The present invention relates to the technical field of folding anti-loosening mechanisms, in particular to a rapid folding anti-loosening joint mechanism. Background Art

[0002] A drone is an unmanned aircraft controlled by a radio remote control device and its own program control device, or operated completely or intermittently autonomously by an onboard computer. Due to its many advantages such as maneuverability, unmanned flight, quick response, simple and flexible operation, it is often used in the three major drone industry fields of scientific research, civil and military, to facilitate its use in various industries, specifically in transportation, photography, surveillance, exploration, delivery and other industries.

[0003] The current drones, and the more commonly used multi-rotor drones, include: multiple rotors (quad-rotor drones, hexacopter drones, octocopter drones or four-axis co-propeller octocopter drones, or more rotors), each arm connected to the central disk fuselage, a power system on each arm for driving the multi-rotor drone, and a landing gear installed on the lower part of the central disk fuselage or under each arm, as well as an operating control system for controlling the multi-rotor drone.

[0004] The connection between the fuselage and arms of multi-rotor drones is generally made using two common methods: plug-in and folding. Plug-in arms are more cumbersome, inconvenient to install and remove, and also inexpensive to transport. Folding arms, on the other hand, often use a snap-on or simple screw-on method. Both of these folding methods can easily cause the connection between the folding arms and the center disc to loosen while the drone is operating, causing the drone to vibrate, leading to uncontrollable and potentially fatal damage. Summary of the Invention

[0005] The purpose of the present invention is to provide a fast folding and anti-loosening joint mechanism to solve the problem of slow folding and easy loosening of drone arm joints in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rapid folding anti-loosening joint mechanism, comprising a center plate internal component assembly I, an arm internal component assembly II, and a threaded sleeve assembly III; the center plate internal component assembly I and the arm internal component assembly II are rotatably connected via a screw shaft, the threaded sleeve assembly III is sleeved on the arm internal component assembly II, and the arm internal component assembly II is threadedly connected to the center plate internal component assembly I;

[0007] The center disk inner component assembly I comprises a center disk adhesive body and a center disk inner component, wherein the center disk inner component is sleeved on the center disk adhesive body;

[0008] The arm internal component assembly II includes an arm internal component and an arm internal component bonding body, and the arm internal component is mounted on the arm internal component bonding body;

[0009] The threaded kit assembly III includes a threaded kit, an anti-loosening rubber ring, an rubber ring pressing block and screws. The threaded kit, the anti-loosening rubber ring and the rubber ring pressing block are fixed together by screws.

[0010] Preferably, the center disk inner part includes a center disk inner part bonding surface, a lower contact surface of the center disk inner part rotating shaft, a threaded hole, an upper contact surface of the center disk inner part and a fixed inner surface. The center disk outer thread is provided on the left side of the center disk inner part bonding surface, the fixed inner surface is arranged at the center of the center disk inner part cylinder, and the lower contact surface of the center disk inner part rotating shaft, the upper contact surface of the center disk inner part and the threaded hole are arranged on one side of the center disk inner part.

[0011] Preferably, the center disk bonding body includes an inner surface of the center disk bonding body, and the inner surface of the center disk bonding body is in contact with and bonded to the bonding surface of the center disk inner component.

[0012] Preferably, the arm internal component bonding body includes an arm bonding body outer surface and an arm bonding body inner surface.

[0013] Preferably, the arm internal component includes a lower contact surface of the arm internal component rotation shaft, a pressure contact surface of the arm internal component, a bonding surface of the arm internal component, a fixed outer surface, and an upper contact surface of the arm internal component. The lower contact surface of the arm internal component rotation shaft, the upper contact surface of the arm internal component, and the through hole constitute a rotation shaft mounting hole, and the rotation shaft mounting hole is provided on a side of the pressure contact surface of the arm internal component, and the bonding surface of the arm internal component is provided on the other side of the pressure contact surface of the arm internal component.

[0014] The bonding surface of the arm inner component contacts the inner surface of the arm bonding body and is bonded and fixed together.

[0015] Preferably, the lower contact surface of the arm inner part rotating shaft and the upper contact surface of the arm inner part are in tight contact with the lower contact surface of the center disk inner part rotating shaft and the upper contact surface of the center disk inner part on the center disk inner part respectively, and the center disk inner part and the arm inner part are connected as one by using a screw shaft through the through hole of the arm inner part and the threaded hole on the center disk inner part respectively.

[0016] Preferably, the threaded kit includes a threaded kit fixing column, a threaded kit pressing contact surface, a threaded kit internal thread and a fixing column thread, the threaded kit internal thread on the threaded kit and the center disk inner part external thread provided on the center disk inner part are threadedly connected to each other, and the threaded kit pressing contact surface on the threaded kit and the arm inner part pressing contact surface provided on the arm inner part are in tight pressure contact with each other.

[0017] Preferably, the anti-loosening rubber ring includes an anti-loosening rubber ring pressure contact surface, an anti-loosening rubber ring inner pressure contact surface, and an anti-loosening rubber ring fixing hole. The anti-loosening rubber ring fixing hole cooperates with a threaded sleeve fixing column provided on the threaded sleeve for installation. The anti-loosening rubber ring inner pressure contact surface has an interference fit with the outer surface of the arm bonding body provided on the arm internal component bonding body.

[0018] Preferably, the rubber ring pressing block includes a screw surface and an rubber ring pressing block contact surface, and the rubber ring pressing block contact surface on the rubber ring pressing block and the anti-loosening rubber ring pressure contact surface on the anti-loosening rubber ring are pressed and fitted with each other.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The quick-folding anti-loosening joint mechanism of the present invention has a simple structure and is easy to operate. It effectively prevents the connection between the arm and the multi-rotor drone body from loosening and the drone from vibrating in the working state, thereby avoiding the fatal phenomenon of instability and explosion of the multi-rotor drone. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 An exploded view of the present invention;

[0022] Figure 2 For the assembly of the present invention Figure 1 ;

[0023] Figure 3 An exploded view of the arm internal component assembly of the present invention;

[0024] Figure 4 An exploded view of the threaded kit assembly of the present invention;

[0025] Figure 5 This is an exploded view of the center disk inner component assembly of the present invention;

[0026] Figure 6 For the assembly of the present invention Figure 2 ;

[0027] Figure 7 is a cross-sectional view of the present invention;

[0028] Figure 8 This is a schematic diagram of the drone's deployment;

[0029] Figure 9 Instructions for folding the drone Figure 1 ;

[0030] Figure 10 Instructions for folding the drone Figure 2 .

[0031] Description of main component symbols:

[0032]

[0033] DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] See also Figure 1-3 The present invention provides a technical solution: a fast folding anti-loosening joint mechanism, comprising a center plate internal component assembly I, an arm internal component assembly II, and a threaded sleeve assembly III; the center plate internal component assembly I and the arm internal component assembly II are rotatably connected via a screw shaft O2, the threaded sleeve assembly III is sleeved on the arm internal component assembly II, and the arm internal component assembly II is threadedly connected to the center plate internal component assembly I;

[0036] The center disk inner component assembly I includes a center disk adhesive body 01 and a center disk inner component 03, wherein the center disk inner component 03 is sleeved on the center disk adhesive body 01;

[0037] The arm internal component assembly II includes an arm internal component 04 and an arm internal component bonding body 05, and the arm internal component 04 is mounted on the arm internal component bonding body 05;

[0038] The threaded kit assembly III includes a threaded kit 06 , an anti-loosening rubber ring 07 , an rubber ring pressing block 08 and a screw 09 . The threaded kit 06 , the anti-loosening rubber ring 07 and the rubber ring pressing block 08 are fixed together by the screw 09 .

[0039] The center disk inner part 03 includes a center disk inner part bonding surface 301, a center disk inner part rotation shaft lower contact surface 303, a threaded hole 304, a center disk inner part upper contact surface 305, and a fixed inner surface 306. The center disk outer thread 302 is provided on the left side of the center disk inner part bonding surface 301. The fixed inner surface 306 is arranged at the center of the center disk inner part 03 cylinder. The center disk inner part rotation shaft lower contact surface 303, the center disk inner part upper contact surface 305, and the threaded hole 304 are arranged on one side of the center disk inner part 03. The center disk adhesive body 01 includes a center disk adhesive inner surface 101, which is in contact with and fixed to the center disk inner part bonding surface 301.

[0040] The center disk body 01 and the center disk inner part 03 are bonded together to form a whole.

[0041] The arm internal component bonding body 05 includes an arm bonding outer surface 501 and an arm bonding inner surface 502; the arm internal component 04 includes an arm internal component rotation shaft lower contact surface 405, an arm internal component pressure contact surface 402, an arm internal component bonding surface 403, a fixed outer surface 404, and an arm internal component upper contact surface 401. The arm internal component rotation shaft lower contact surface 405, the arm internal component upper contact surface 401, and the through hole 406 constitute a rotation shaft mounting hole, and the rotation shaft mounting hole is provided on a side of the arm internal component pressure contact surface 402, and the arm internal component bonding surface 403 is provided on the other side of the arm internal component pressure contact surface 402;

[0042] The arm inner component bonding surface 403 contacts the arm bonding body inner surface 502 and is bonded and fixed together.

[0043] The lower contact surface 405 of the arm inner component shaft and the upper contact surface 401 of the arm inner component are in close contact with the lower contact surface 303 of the center disk inner component shaft and the upper contact surface 305 of the center disk inner component 03, respectively. The center disk inner component 03 and the arm inner component 04 are connected as one body by a screw shaft 02 passing through a through hole 406 of the arm inner component 04 and a threaded hole 304 on the center disk inner component 03, respectively. The center disk inner component 03 and the arm inner component 04 can be quickly installed by the screw shaft 02.

[0044] The threaded sleeve 06 includes a threaded sleeve fixing column 601, a threaded sleeve pressing contact surface 602, a threaded sleeve internal thread 603, and a fixing column thread 604. The threaded sleeve internal thread 603 on the threaded sleeve 06 is threadedly connected to the center disk internal component external thread 302 provided on the center disk internal component 03. The threaded sleeve pressing contact surface 602 on the threaded sleeve 06 is in tight contact with the arm internal component pressing contact surface 402 provided on the arm internal component 04, so that the arm internal component assembly II and the center disk internal component assembly I are quickly connected.

[0045] The anti-loosening rubber ring 07 comprises an anti-loosening rubber ring pressure contact surface 701, an anti-loosening rubber ring inner pressure contact surface 702 and an anti-loosening rubber ring fixing hole 703. The anti-loosening rubber ring fixing hole 703 on the anti-loosening rubber ring 07 is mutually matched and installed with a threaded set fixing column 601 provided on the threaded set 06. The anti-loosening rubber ring inner pressure contact surface (702) on the anti-loosening rubber ring (07) is mutually interference-fitted with an arm bonding outer surface (501) provided on the arm internal bonding body (05).

[0046] The rubber ring pressing block 08 includes a screw surface 801 and a rubber ring pressing block contact surface 802 . The rubber ring pressing block contact surface 802 on the rubber ring pressing block 08 cooperates with and contacts the anti-loosening rubber ring pressing contact surface 702 on the anti-loosening rubber ring 07 .

[0047] In this embodiment, the center disk internal component assembly I and the arm internal component assembly II are rotationally connected via a screw shaft 02.

[0048] See also Figure 5 The center disk inner component assembly I includes a center disk adhesive body 01 and a center disk inner component 03, and the center disk inner component 03 is sleeved on the center disk adhesive body 01; the center disk adhesive body 01 includes a center disk adhesive inner surface 101, and similarly, the center disk inner component 03 includes a center disk inner component bonding surface 301, and the center disk adhesive inner surface 101 is in contact with the center disk inner component bonding surface 301 and is bonded and fixed together.

[0049] See also Figure 3 The arm internal component assembly II includes an arm internal component 04 and an arm internal component adhesive body 05, wherein the arm internal component 04 is mounted on the arm internal component adhesive body 05; the arm internal component 04 includes an arm internal component adhesive surface 403, and similarly, the arm internal component adhesive body 05 includes an arm adhesive inner surface 502, wherein the arm internal component adhesive surface 403 contacts and is bonded to the arm adhesive inner surface 502 and fixed together.

[0050] In this embodiment, the threaded sleeve assembly III is sleeved on the arm internal component assembly II, and the arm internal component assembly II is threadedly connected to the center disk internal component assembly I;

[0051] See also Figure 4 The threaded kit 06 includes a threaded kit fixing column 601, a threaded kit pressing contact surface 602, a threaded kit internal thread 603 and a fixing column thread 604. The threaded kit internal thread 603 on the threaded kit 06 is threadedly connected to the center disk inner part external thread 302 provided on the center disk inner part 03. The threaded kit pressing contact surface 602 on the threaded kit 06 is in tight pressure contact with the arm inner part pressing contact surface 402 provided on the arm inner part 04.

[0052] Same reference Figure 4 The anti-loosening rubber ring 07 includes an anti-loosening rubber ring pressure contact surface 701, an anti-loosening rubber ring inner pressure contact surface 702 and an anti-loosening rubber ring fixing hole 703. The anti-loosening rubber ring fixing hole 703 on the anti-loosening rubber ring 07 is installed in cooperation with the threaded kit fixing column 601 provided on the threaded kit 06, and the anti-loosening rubber ring inner pressure contact surface 702 on the anti-loosening rubber ring 07 is tightly fitted with the outer surface 501 of the arm bonding body provided on the arm internal part bonding body 05.

[0053] Same reference Figure 4The rubber ring clamp 08 includes a screw surface 801 and a rubber ring clamp contact surface 802. The rubber ring clamp contact surface 802 on the rubber ring clamp 08 and the anti-loosening rubber ring pressure contact surface 701 on the anti-loosening rubber ring 07 are in tight contact with each other. Four screws 09 are secured to the screw surface 801 on the rubber ring clamp 08 and through the anti-loosening rubber ring fixing hole 703 on the anti-loosening rubber ring 07, securing the clamp to the fixing post thread 604 on the screw assembly 06, thereby forming the threaded assembly assembly III.

[0054] See also Figures 6-7 The quick-folding anti-loosening joint mechanism includes a center disk internal component assembly I, an arm internal component assembly II and a threaded kit assembly III; the center disk internal component assembly I and the arm internal component assembly II are rotatably connected by a screw shaft 02, so that the arm internal component assembly II can be folded and unfolded by the screw shaft 02, and the threaded kit assembly III is sleeved on the arm internal component assembly II, and the anti-loosening rubber ring inner pressure contact surface 702 on the threaded kit assembly III and the arm adhesive outer surface 501 on the arm internal component assembly II are interference-tightly fitted with each other. At the same time, when the arm internal component assembly II is threadedly connected to the center disk internal component assembly I, the threaded kit pressure contact surface 602 on the threaded kit 06 on the threaded kit assembly III and the arm internal component pressure contact surface 402 on the arm internal component on the arm internal component assembly II are screwed together under the threaded connection, realizing the dual protection structure design of anti-vibration and free loosening provided by the anti-loosening joint mechanism of the present invention. At the same time, this invention can be folded quickly and is convenient and quick to operate.

[0055] See also Figure 8 The present invention provides a technical solution: a schematic diagram illustrating the deployment of a fast-folding anti-loosening joint mechanism applied to a quad-rotor drone.

[0056] See also Figures 9-10 The present invention provides a technical solution: a quick folding and anti-loosening joint mechanism is applied to a quad-rotor UAV, and a folding schematic diagram is illustrated.

[0057] The present invention provides a technical solution: a fast folding anti-loosening joint mechanism only illustrates the schematic diagram of the unfolding and folding of the quadcopter drone, and other rotors (quadcopters, octocopters...) also have the same function.

[0058] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A quick-folding anti-loosening joint mechanism, comprising a center plate internal component assembly (I), an arm internal component assembly (II), and a threaded sleeve assembly (III); characterized in that: The central disk internal component assembly (I) and the machine arm internal component assembly (II) are rotatably connected via a screw shaft (02); the threaded sleeve assembly (III) is sleeved on the machine arm internal component assembly (II), and the machine arm internal component assembly (II) is threadedly connected to the central disk internal component assembly (I); The center disk inner component assembly (I) comprises a center disk adhesive body (01) and a center disk inner component (03), wherein the center disk inner component (03) is sleeved on the center disk adhesive body (01); the center disk inner component (03) comprises a center disk inner component adhesive surface (301), a center disk inner component rotation shaft lower contact surface (303), a threaded hole (304), a center disk inner component upper contact surface (305) and a fixed inner surface (306); a center disk outer thread (302) is provided on the left side of the center disk inner component adhesive surface (301), the fixed inner surface (306) is arranged at the center of the center disk inner component (03) cylinder, and the center disk inner component rotation shaft lower contact surface (303), the center disk inner component upper contact surface (305) and the threaded hole (304) are arranged on one side of the center disk inner component (03); The arm internal component assembly (II) comprises an arm internal component (04) and an arm internal component adhesive body (05), wherein the arm internal component (04) is mounted on the arm internal component adhesive body (05); the arm internal component (04) comprises an arm internal component rotation shaft lower contact surface (405), an arm internal component pressure contact surface (402), an arm internal component adhesive surface (403), a fixed outer surface (404) and an arm internal component upper contact surface (401); the arm internal component rotation shaft lower contact surface (405), the arm internal component upper contact surface (401) and the through hole (406) constitute a rotation shaft mounting hole, and the rotation shaft mounting hole is arranged on a side of the arm internal component pressure contact surface (402), and the arm internal component adhesive surface (403) is arranged on the other side of the arm internal component pressure contact surface (402); the arm internal component adhesive surface (403) contacts the arm internal component adhesive body inner surface (502) and is bonded and fixed together; The threaded kit assembly (III) comprises a threaded kit (06), an anti-loosening rubber ring (07), an rubber ring pressing block (08) and a screw (09); the threaded kit (06), the anti-loosening rubber ring (07) and the rubber ring pressing block (08) are fixed together by the screw (09).

2. A rapid folding anti-loosening joint mechanism according to claim 1, characterized in that: The center disk bonding body (01) comprises a center disk bonding inner surface (101), and the center disk bonding inner surface (101) contacts and is bonded and fixed with the center disk inner component bonding surface (301).

3. A rapid folding anti-loosening joint mechanism according to claim 2, characterized in that: The arm internal component bonding body (05) comprises an arm bonding outer surface (501) and an arm bonding inner surface (502).

4. A rapid folding anti-loosening joint mechanism according to claim 3, characterized in that: The lower contact surface (405) of the arm inner component shaft and the upper contact surface (401) of the arm inner component are in close contact with the lower contact surface (303) of the center disk inner component shaft and the upper contact surface (305) of the center disk inner component (03), respectively. The center disk inner component (03) and the arm inner component (04) are connected as one body by using a screw shaft (02) passing through a through hole (406) of the arm inner component (04) and a threaded hole (304) on the center disk inner component (03).

5. The rapid folding anti-loosening joint mechanism according to claim 4, characterized in that: The threaded sleeve (06) comprises a threaded sleeve fixing column (601), a threaded sleeve pressure contact surface (602), a threaded sleeve internal thread (603) and a fixing column thread (604); the threaded sleeve internal thread (603) on the threaded sleeve (06) and the center disk internal component external thread (302) provided on the center disk internal component (03) are threadedly connected to each other; the threaded sleeve pressure contact surface (602) on the threaded sleeve (06) and the arm internal component pressure contact surface (402) provided on the arm internal component (04) are in tight pressure contact with each other.

6. The rapid folding anti-loosening joint mechanism according to claim 5, characterized in that: The anti-loosening rubber ring (07) comprises an anti-loosening rubber ring pressure contact surface (701), an anti-loosening rubber ring inner pressure contact surface (702), and an anti-loosening rubber ring fixing hole (703). The anti-loosening rubber ring fixing hole (703) on the anti-loosening rubber ring (07) and a threaded set fixing column (601) provided on the threaded set (06) are mutually matched and installed, and the anti-loosening rubber ring inner pressure contact surface (702) on the anti-loosening rubber ring (07) and an arm bonding outer surface (501) provided on the arm internal bonding body (05) are mutually interference-tightly matched.

7. The rapid folding anti-loosening joint mechanism according to claim 6, characterized in that: The rubber ring pressing block (08) comprises a screw surface (801) and a rubber ring pressing block contact surface (802), and the rubber ring pressing block contact surface (802) on the rubber ring pressing block (08) and the anti-loosening rubber ring pressure contact surface (701) on the anti-loosening rubber ring (07) are in press-fit contact with each other.

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