Quick release lock catch for unmanned aerial vehicle arm
By using the quick-release latch design for the drone arm, and combining locking rods, stabilizing blocks, and fixing pins, the drone arm can be quickly installed and disassembled. This solves the problem of complex operation of traditional latch structures and improves installation efficiency and connection reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG FEITUO INTELLIGENT ELECTRONICS CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional drone arm locking structures require tools to tighten or loosen bolts one by one, which involves many steps and is inefficient when operating outdoors.
A quick-release latch for a drone arm was designed, which uses a locking engagement rod, a stabilizing block and a sliding groove to achieve quick installation and disassembly through manual operation. The locking engagement rod is quickly locked under the action of a connecting spring, the stabilizing block and the stabilizing groove enhance stability, the T-shaped plate and the T-shaped sleeve groove limit displacement, and the fixing pin provides additional fixation.
The arm can be quickly installed and disassembled without the need for tools, simplifying the operation steps, improving installation efficiency and connection stability, and saving time and labor costs.
Smart Images

Figure CN224256967U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a quick-release locking latch for UAV arms. Background Technology
[0002] As an unmanned aerial vehicle controlled by radio remote control equipment or its own program control device, drones have been widely used in many fields such as aerial surveying and mapping, agricultural plant protection, power line inspection, and logistics transportation.
[0003] In practical use, drones often require the transportation, maintenance, or replacement of arms of different specifications. However, traditional drone arm locking structures use multiple bolts or complex snap-fit designs. Installation requires tools to tighten each bolt individually, and disassembly requires loosening them one by one. This not only involves numerous steps but also, in outdoor operations, the inconvenience of carrying tools further reduces assembly and disassembly efficiency, impacting the drone's operational progress. Therefore, we have introduced a quick-release locking mechanism for drone arms. Utility Model Content
[0004] The main purpose of this utility model is to provide a quick-release lock for the arm of a drone, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A quick-release latch for a drone arm includes a fuselage mounting plate. Four fuselage mounting blocks are fixedly connected to the four sides of the fuselage mounting plate. Each of the four fuselage mounting blocks has a through-hole on its right side. A fixing structure is fixedly connected to the right side of the fuselage mounting plate. An installation structure is movably fitted inside the fixing structure. A fixing pin is threaded to the upper end of the fixing structure. A wing mounting plate is fixedly connected to the right side of the installation structure. Each of the four corners of the right side of the wing mounting plate has a through-hole.
[0007] Preferably, the mounting structure includes a boom body, a sleeve rod fixedly connected to the left end of the boom body, a second pin screw hole opened on the outer surface of the sleeve rod, T-shaped clamping plates fixedly connected to the upper left and lower left parts of the boom body, storage holes opened on the front left and rear left parts of the boom body, movable holes opened on the inner wall surfaces of the two storage holes, several stabilizing grooves opened on the inner wall surfaces of the two movable holes, connecting springs fixedly connected to adjacent ends of the two storage holes, movable blocks fixedly connected to the outer surfaces of the two connecting springs, several stabilizing blocks fixedly connected to the outer surfaces of the two movable blocks, and locking fitting rods fixedly connected to the outer surfaces of the two movable blocks.
[0008] By adopting the above technical solution, the locking and fitting rod can quickly lock under the action of the connecting spring, improving installation efficiency. At the same time, the cooperation between the stabilizing block and the stabilizing groove can enhance the stability of the moving block when it moves, ensuring the accurate movement of the locking and fitting rod.
[0009] Preferably, the two movable blocks are respectively movably fitted into the corresponding two movable holes, and the plurality of stabilizing blocks are respectively movably fitted into the corresponding plurality of stabilizing grooves.
[0010] By adopting the above technical solution: the movable block moves within the movable hole, providing a stable track for the movement of the locking rod. The cooperation between the stabilizing block and the stabilizing groove further restricts the movement direction of the movable block, preventing it from shaking and ensuring that the locking rod can accurately engage or disengage from the locking position.
[0011] Preferably, the fixing structure includes a fixing arm, with a sliding groove on the right side of the front inner wall and the right side of the rear inner wall of the fixing arm. A locking fitting hole is formed on the left side of each of the two sliding grooves at their opposite ends. A sleeve hole is formed on the left inner wall of the fixing arm. A first pin screw hole is formed at the upper end of the fixing arm, communicating with the sleeve hole. T-shaped sleeve grooves are formed on the right side of the upper inner wall and the right side of the lower inner wall of the fixing arm. The left end of the fixing arm is fixedly connected to the right end of the mounting plate of the machine body.
[0012] By adopting the above technical solution: the locking fitting hole can be fitted with the locking fitting rod to achieve locking, the sleeve hole and the first pin screw hole cooperate to provide an installation position for fixing the pin, and the multiple structures work together to ensure the stability of the connection.
[0013] Preferably, the dimensions of the two slides are respectively adapted to the dimensions of the two corresponding locking fitting rods and are located opposite each other, and the right side of the inner wall of the two slides is set as a rounded corner.
[0014] By adopting the above technical solution: the size of the slide groove and the locking rod are matched to ensure that the locking rod slides smoothly, and the rounded edge design makes it easy for the locking rod to enter the slide groove smoothly, reducing obstacles during installation and improving installation convenience.
[0015] Preferably, the arm body is movably sleeved inside the fixed arm, the sleeve rod is movably sleeved inside the sleeve hole, and the two T-shaped clamping plates are respectively movably sleeved inside the corresponding two T-shaped sleeve grooves.
[0016] By adopting the above technical solution, the T-shaped clamp and the T-shaped slot can restrict displacement, ensure that the installation structure does not shift within the fixed structure, and improve the connection stability.
[0017] Preferably, the ends of the two stabilizing blocks that are far apart from each other are both rounded, and the portions of the two locking fitting rods that are far apart from each other are respectively fitted into the corresponding two locking fitting holes.
[0018] By adopting the above technical solution: the rounded edge design of the stabilizing block makes it move more smoothly in the stabilizing groove, reducing wear; the engagement of the locking fitting rod and the locking fitting hole can realize the quick locking of the installation structure and the fixed structure, preventing relative movement between the two and ensuring reliable connection.
[0019] Preferably, the outer surface of the fixing pin is threaded to the inner wall of the first pin screw hole and extends into the second pin screw hole.
[0020] By adopting the above technical solution: the threaded connection between the fixing pin and the first pin screw hole and the second pin screw hole can tightly fix the sleeve rod and the fixing arm, strengthen the connection between the installation structure and the fixing structure, prevent loosening, and improve the overall connection safety.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] During installation, this invention involves pressing the locking rod inward with a finger, compressing the connecting spring, and causing the movable block to move the stabilizing block within the movable hole and stabilizing groove, retracting the locking rod into the receiving hole. Then, the sleeve rod is inserted into the sleeve hole of the fixed arm, the T-shaped clamping plate is inserted into the T-shaped sleeve groove, and the locking rod enters the sliding groove. Releasing the finger and pushing the arm body to the appropriate position causes the connecting spring to reset, allowing the locking rod to embed into the locking hole and the stabilizing block to engage with the stabilizing groove, achieving initial fixation. Finally, a fixing pin is inserted through the first and second pin screw holes to complete the fixation. Installation can be completed quickly and manually without the need for tools. The fit between the T-shaped plate and the T-shaped slot, the engagement of the locking rod and the locking hole, and the double fixation of the fixing pin ensure a stable connection of the boom and prevent loosening during operation. During disassembly, unscrew the fixing pin, press the locking rod to disengage it from the locking hole, and pull the wing mounting plate to detach the boom body from the fixed arm. The entire process is also tool-free, simple and quick to operate. Compared with traditional locks, it greatly simplifies the disassembly and assembly steps, saving time and labor costs. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of a quick-release latch for a drone arm according to the present invention;
[0024] Figure 2 This is an exploded view of the overall structure of a quick-release latch for a drone arm according to this utility model;
[0025] Figure 3 This is a schematic diagram of the fixing structure of a quick-release locking buckle for a drone arm according to the present invention;
[0026] Figure 4 This is a cross-sectional view of the fixing structure of a quick-release locking buckle for a drone arm according to the present invention (the fixing arm is cut out).
[0027] Figure 5 This is a schematic diagram of the installation structure of a quick-release locking buckle for a drone arm according to the present invention;
[0028] Figure 6 This is a cross-sectional view of the installation structure of a quick-release latch for a drone arm according to the present invention (the arm body and the T-shaped clamp are cut out).
[0029] Figure 7 This is a cross-sectional view of the arm body of a drone arm quick-release lock according to the present invention;
[0030] Figure 8 This is a schematic diagram of the combined connection structure of a quick-release lock for a drone arm, comprising a connecting spring, a movable block, a stabilizing block, and a locking fitting rod.
[0031] In the diagram: 1. Fuselage mounting plate; 2. Fuselage mounting block; 3. Fuselage mounting hole; 4. Fixing structure; 5. Mounting structure; 6. Fixing pin; 7. Wing mounting plate; 8. Wing mounting hole; 41. Fixing arm; 42. Slide groove; 43. Locking engagement hole; 44. Sleeve hole; 45. First pin screw hole; 46. T-shaped sleeve groove; 51. Arm body; 52. Sleeve rod; 53. Second pin screw hole; 54. T-shaped clamping plate; 55. Storage hole; 56. Movable hole; 57. Stabilizing groove; 58. Connecting spring; 59. Movable block; 591. Stabilizing block; 592. Locking engagement rod. Detailed Implementation
[0032] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0035] Please see Figure 1-8 This utility model provides a technical solution:
[0036] A quick-release latch for a drone arm includes a fuselage mounting plate 1. Fuselage mounting blocks 2 are fixedly connected to all four sides of the fuselage mounting plate 1. Each of the four fuselage mounting blocks 2 has a fuselage mounting hole 3 that passes through from left to right at its right end. A fixing structure 4 is fixedly connected to the right end of the fuselage mounting plate 1. An installation structure 5 is movably sleeved inside the fixing structure 4. A fixing pin 6 is threadedly connected to the upper end of the fixing structure 4. A wing mounting plate 7 is fixedly connected to the right end of the installation structure 5. A wing mounting hole 8 that passes through from left to right is opened at each of the four corners of the right end of the wing mounting plate 7.
[0037] In this embodiment, the mounting structure 5 includes a robotic arm body 51. A sleeve rod 52 is fixedly connected to the left end of the robotic arm body 51. A second pin screw hole 53 is opened on the outer surface of the sleeve rod 52. T-shaped clamping plates 54 are fixedly connected to the upper left and lower left parts of the robotic arm body 51. Storage holes 55 are opened on the front left and rear left parts of the robotic arm body 51. Movable holes 56 are opened on the inner wall surface of the two storage holes 55. Several stabilizing grooves 57 are opened on the inner wall surface of the two movable holes 56. A connecting spring is fixedly connected to one adjacent end of the two storage holes 55. Spring 58, with movable blocks 59 fixedly connected to the outer surfaces of both connecting springs 58, and several stabilizing blocks 591 fixedly connected to the outer surfaces of both movable blocks 59, and locking fitting rods 592 fixedly connected to the outer surfaces of both movable blocks 59; the two movable blocks 59 are respectively movably sleeved in two corresponding movable holes 56, and the several stabilizing blocks 591 are respectively movably sleeved in several corresponding stabilizing grooves 57; the fixing structure 4 includes a fixing arm 41, with sliding grooves 42 opened on the right side of the front inner wall and the right side of the rear inner wall of the fixing arm 41. Each of the two sliding grooves 42 has a locking and fitting hole 43 that passes through both the inside and outside on the left side of its opposite ends. The left inner wall of the fixing arm 41 has a sleeve hole 44. The upper end of the fixing arm 41 has a first pin screw hole 45 that passes through the sleeve hole 44. T-shaped sleeve grooves 46 are formed on the right side of both the upper and lower inner walls of the fixing arm 41. The left end of the fixing arm 41 is fixedly connected to the right end of the mounting plate 1. The dimensions of the two sliding grooves 42 are respectively adapted to the dimensions of the two corresponding locking and fitting rods 592 and are located opposite each other. The right side of the inner wall of 2 is rounded; the arm body 51 is movably sleeved in the fixed arm 41, the sleeve rod 52 is movably sleeved in the sleeve hole 44, and the two T-shaped clamps 54 are respectively movably sleeved in the corresponding two T-shaped sleeve grooves 46; the ends of the two stabilizing blocks 591 that are far apart from each other are rounded, and the parts of the two locking fitting rods 592 that are far apart from each other are respectively fitted into the corresponding two locking fitting holes 43; the outer surface of the fixed pin 6 is threaded to the inner wall of the first pin screw hole 45 and extends into the second pin screw hole 53.
[0038] It should be noted that this utility model is a quick-release lock for a drone arm. During installation, first press the two locking engagement rods 592 inward with your fingers. The two connecting springs 58 are compressed, and the movable block 59 moves within the movable hole 56. The stabilizing block 591 moves with the movable block 59 and moves within the stabilizing groove 57. Then, retract the locking engagement rods 592 into the receiving hole 55, and insert the sleeve rod 52 into the fixed arm 41. This allows the two T-shaped clamps 54 to fit into the corresponding two T-shaped slots 46, and the two locking engagement rods 592 to fit into the corresponding two sliding grooves 42. Then, release your fingers and move the arm body 51 towards the fixed arm. The fixed arm 41 is pushed inward, at which point the locking engagement rod 592 slides in the slide groove 42, and the stabilizing block 591 moves accordingly in the stabilizing groove 57. The arm body 51 is continuously pushed until the sleeve rod 52 is fully inserted into the sleeve hole 44, and the two T-shaped clamping plates 54 are fully inserted into the corresponding two T-shaped sleeve grooves 46. At this point, the connecting spring 58 resets, pushing the movable block 59 to move outward in the movable hole 56. The stabilizing block 591 is then engaged in the corresponding stabilizing groove 57, and simultaneously the locking engagement rod 592 is embedded into the corresponding locking engagement hole 43, achieving initial fixation. Finally, the fixing pin 6 is threaded into the first pin screw hole 45, and extends... The bolt extends into the second pin screw hole 53 to complete the fixing of the mounting structure 5 and the fixing structure 4. At this time, the fuselage mounting plate 1 can be installed on the drone fuselage through the fuselage mounting hole 3 with bolts, and the drone wings can be installed through the wing mounting holes 8 on the wing mounting plate 7 with bolts. When disassembly is required, first unscrew the fixing pin 6 from the first pin screw hole 45 and the second pin screw hole 53 to release the fixing of the mounting structure 5 and the fixing structure 4. Press the two locking engagement rods 592 inward with your fingers, the two connecting springs 58 are compressed, the movable block 59 moves inward in the movable hole 56, and the stabilizing block 591 follows the movable block. 59 moves within the stabilizing groove 57, the locking engagement rod 592 disengages from the locking engagement hole 43 and retracts into the receiving hole 55, pulling the wing mounting plate 7, causing the arm body 51 to move outwards from the fixed arm 41. At this time, the locking engagement rod 592 slides along the sliding groove 42, the T-shaped clamping plate 54 gradually slides out from the T-shaped sleeve groove 46, and the sleeve rod 52 gradually exits from the sleeve hole 44. Continue pulling the arm body 51 until the mounting structure 5 is completely detached from the fixed structure 4, the locking engagement rod 592 is released, the connecting spring 58 resets, and the moving block 59, stabilizing block 591, and locking engagement rod 592 return to their initial positions, completing the disassembly.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A quick-release lock for a drone arm, comprising a body mounting plate (1), characterized in that: The fuselage mounting plate (1) is fixedly connected to the four sides of the fuselage mounting block (2). The right end of each of the four fuselage mounting blocks (2) has a fuselage mounting hole (3) that passes through from left to right. The right end of the fuselage mounting plate (1) is fixedly connected to a fixing structure (4). The fixing structure (4) is movably sleeved with an installation structure (5). The upper end of the fixing structure (4) is threaded with a fixing pin (6). The right end of the installation structure (5) is fixedly connected to a wing mounting plate (7). The four corners of the right end of the wing mounting plate (7) have wing mounting holes (8) that pass through from left to right. The installation structure (5) includes a boom body (51), a sleeve rod (52) is fixedly connected to the left end of the boom body (51), a second pin screw hole (53) is opened on the outer surface of the sleeve rod (52), a T-shaped card plate (54) is fixedly connected to the upper left and lower left of the boom body (51), a storage hole (55) is opened on the front left and rear left of the boom body (51), a movable hole (56) is opened on the inner wall surface of the two storage holes (55), a number of stabilizing grooves (57) are opened on the inner wall surface of the two movable holes (56), a connecting spring (58) is fixedly connected to one adjacent end of the two storage holes (55), a movable block (59) is fixedly connected to the outer side of the two connecting springs (58), a number of stabilizing blocks (591) are fixedly connected to the outer surface of the two movable blocks (59), and a locking fitting rod (592) is fixedly connected to the outer side of the two movable blocks (59).
2. The quick release lock of claim 1, wherein: The two movable blocks (59) are respectively movably fitted into the corresponding two movable holes (56), and the several stabilizing blocks (591) are respectively movably fitted into the corresponding several stabilizing grooves (57).
3. The quick release lock of claim 1, wherein: The fixing structure (4) includes a fixing arm (41). The right side of the front inner wall and the right side of the rear inner wall of the fixing arm (41) are both provided with a sliding groove (42). The left side of the two sliding grooves (42) that are far apart from each other are both provided with a locking fitting hole (43) that passes through the inside and outside. The left inner wall of the fixing arm (41) is provided with a sleeve hole (44). The upper end of the fixing arm (41) is provided with a first pin screw hole (45) that passes through the sleeve hole (44). The right side of the upper inner wall and the right side of the lower inner wall of the fixing arm (41) are both provided with a T-shaped sleeve groove (46). The left end of the fixing arm (41) is fixedly connected to the right end of the mounting plate (1) of the fuselage.
4. The quick release lock of claim 3, wherein: The size of the two slides (42) is adapted to the size of the two corresponding locking fitting rods (592) and they are located opposite each other. The right side of the inner wall of the two slides (42) is set as a rounded corner.
5. The quick release lock of claim 1, wherein: The arm body (51) is movably sleeved in the fixed arm (41), the sleeve rod (52) is movably sleeved in the sleeve hole (44), and the two T-shaped clamps (54) are respectively movably sleeved in the corresponding two T-shaped sleeve grooves (46).
6. The quick release lock of claim 1, wherein: Two said stable blocks (591) are provided with rounded edges at the ends away from each other, and two said locking insertion rods (592) are respectively inserted into corresponding two locking insertion holes (43).
7. The quick release lock of claim 1, wherein: The outer surface of the fixed bolt (6) is in threaded connection with the inner wall surface of the first bolt screw hole (45) and extends into the second bolt screw hole (53).