Cabin door control mechanism suitable for multi-rotor unmanned aerial vehicle shelter
By using a mechanical linkage structure instead of an independent motor control system in the drone cabin, the problems of complex structure, large space occupied, difficult assembly and high manufacturing costs in the prior art are solved, and the effects of simplifying the structure, increasing space, reducing difficulty and cost are achieved.
Patent Information
- Application Number
- CN202422156193.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-09-03
AI Technical Summary
The existing drone cabin door control mechanism uses independent motors and control systems, resulting in complex structures, occupying a large amount of internal space, difficult assembly and high manufacturing costs.
It adopts a mechanical linkage structure, including the square cabin body, the hatch door pull rod mechanism and the platform mechanism. It uses the mechanical linkage of the hatch door pull rod mechanism and the platform mechanism to provide power through the compression spring to realize the opening and closing of the hatch door.
The internal structure of the drone cabin is simplified, the use space is increased, the assembly difficulty and manufacturing cost are reduced, and the stable and reliable hatch door control is achieved, which improves work efficiency.
Smart Images
Figure CN222949662U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of unmanned aerial vehicle systems, and in particular relates to a cabin door control mechanism suitable for a multi-rotor unmanned aerial vehicle cabin. Background Art
[0002] With the rapid development of multi-rotor UAV technology and the widespread application of rotary-wing UAVs in the fields of military, transportation, life-saving and medical treatment, UAV shelters have played an important role in the storage, transportation, protection, and charging of rotary-wing UAVs. During the automatic release and recovery of UAVs, the opening and closing states of the shelter door need to be precisely controlled. The control mechanism of the UAV shelter door needs to have the advantages of stability, reliability, short time, and high efficiency. In the current application of UAV shelters, it is common to use independent motors and control systems to control the shelter door. This device occupies a large amount of space inside the shelter, has a complex structure, and is difficult to assemble. In addition, the control of the independent motor increases the complexity of the overall control system of the shelter, which greatly increases the manufacturing cost of the shelter. Utility Model Content
[0003] The technical problem to be solved by the utility model is that: using an independent motor and a control system to control the cabin door occupies a large amount of interior space of the cabin, has a complex structure, and is difficult to assemble.
[0004] In order to solve the above technical problems, the specific technical solutions of the utility model are as follows:
[0005] A door control mechanism suitable for a multi-rotor UAV cabin, comprising a cabin body, a door pull rod mechanism and a platform mechanism;
[0006] The cabin body comprises a box frame 1, a door 5, a door shaft 4, a left door connecting rod arm 6, and a right door connecting rod arm 7. The door 5 is hinged to the box frame 1 through the door shaft 4. The left door connecting rod arm 6 and the right door connecting rod arm 7 are respectively fixed to the lower surfaces of the left and right doors.
[0007] Two groups of door pull rod mechanisms 3 are symmetrically arranged on the left and right sides of the box frame 1, and the two have the same structure; the door pull rod mechanism 3 on the left side includes a flip connecting rod 15, a pull rod slide 13, a door pull slider 14, a door pull rod 9, a spring stopper 12, a compression spring 11, a spring support seat 10 and a door traction block 8; the pull rod slide 13 and the spring stopper 12 are fixed to the left side of the box frame; the upper end of the door pull rod 9 passes through the spring stopper 12, the pull rod slide 13 and the lower end of the door pull slider 14 in sequence through a threaded connection, and one end of the flip connecting rod 15 is connected to the door pull slider 14. The upper end of the slider 14 is hinged, and the other end of the flip link 15 is hinged to the left door link arm 6; the lower end of the door pull rod 9 passes through the compression spring 11 and the spring stopper 12 in sequence and is connected to the door traction block 8 through a thread; the flip link 15 is fixedly connected to the left door link arm 6; wherein the threads at both ends of the door pull rod 9 are rotated in opposite directions, and the distance between the door pull slider 14 and the door traction block 8 can be adjusted by rotating the door pull rod 9; the spring support seat 10 is fixedly arranged on the door pull rod 9, and the compression spring 11 is arranged between the spring stopper 12 and the spring support seat 10;
[0008] The platform mechanism 2 includes a lifting platform 18 and a roller needle bearing 17 , and the lifting platform 18 is connected to the hatch door traction block 8 via the roller needle bearing 17 .
[0009] Among them, the front panel of the box frame 1 is prefabricated with installation and fixing holes for the hatch pull rod mechanism, and the front and rear panels thereof are prefabricated with installations for the hatch shaft 4.
[0010] A square slide groove is provided at the lower end of the pull rod slide 13 to limit the left-right deviation when the cabin door pulls the slide block 14 to move up and down.
[0011] The compression spring 11 is always in a compressed state.
[0012] The utility model has the following advantages: the function of opening and closing the cabin door is realized, and the mechanical linkage structure replaces the independent motor and motor control structure for controlling the cabin door, which makes the internal structure of the UAV cabin simpler, increases the internal usable space of the cabin, and reduces the difficulty of assembling the cabin; a compression spring is used to provide power for opening the cabin door, and the spring is always in a compressed state. The compression spring replaces the control motor, which saves the manufacturing cost of the cabin, and makes the opening and closing states of the cabin door of the UAV cabin maintain a follow-up relationship with the lifting and lowering movement of the platform, thereby improving the overall working efficiency of the cabin. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the structure of the hatch control mechanism of the utility model;
[0014] Figure 2 It is a schematic diagram of the door pull rod mechanism structure;
[0015] Figure 3This is a schematic diagram of the platform structure;
[0016] Figure 4 This is a schematic diagram of the closed state of the shelter;
[0017] Figure 5 It is a schematic diagram of the connection between the door pull rod mechanism and the left door;
[0018] Figure 6 It is a schematic diagram of the contact between the platform mechanism and the hatch traction block;
[0019] Figure 7 Schematic diagram of the partial position of the door pull rod mechanism when the door is open.
[0020] Explanation of marks in the figure: 1. Box frame; 2. Platform mechanism; 3. Door pull rod mechanism; 4. Door shaft; 5. Door; 6. Left door connecting rod arm; 7. Right door connecting rod arm; 8. Door traction block; 9. Door pull rod; 10. Spring support seat; 11. Compression spring; 12. Spring stopper; 13. Pull rod slide seat; 14. Door pulling slide block; 15. Flip connecting rod; 16. Fixed pin shaft; 17. Roller needle bearing; 18. Lifting platform. DETAILED DESCRIPTION
[0021] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.
[0022] like Figure 1-Figure 7 As shown, the utility model is a door control mechanism suitable for a multi-rotor UAV cabin, comprising a cabin body, a door pull rod mechanism and a platform mechanism. The cabin body comprises a box frame 1, a cabin door 5, a cabin door shaft 4, a cabin door left connecting rod arm 6, and a cabin door right connecting rod arm 7. The cabin door 5 is connected to the box frame 1 through the cabin door shaft 4, and the cabin door left connecting rod arm 6 and the cabin door right connecting rod arm 7 are respectively fixed to the lower surfaces of the left and right cabin doors using screws.
[0023] Two groups of door pull rod mechanisms 3 are symmetrically arranged on the left and right sides of the box frame 1, and the two have the same structure. The door pull rod mechanism 3 on the left side includes a flip link 15, a pull rod slide 13, a door pull slider 14, a door pull rod 9, a spring stopper 12, a fixed pin 16, a compression spring 11, a spring support seat 10 and a door traction block 8. The upper end of the door pull rod 9 passes through the through hole of the pull rod slide 13 and is connected to the door pull slider 14 by threading. One end of the flip link 15 is connected to the door pull slider 14 by screws. The door pull rod 9 is equipped with a spring stopper 12, and the fixed pin 16 passes through the through hole of the door pull rod 9 and the spring stopper 12 for fixing. The lower end of the door pull rod 9 passes through the compression spring 11 and the spring stopper 12 and is connected to the door traction block 8 by threading. After the door pull rod mechanism components are assembled, the pull rod slide 13 and the spring stopper 12 are fixed to both sides of the box frame with screws, and the flip link 15 is connected to the door left link arm 6 with screws. The threads at both ends of the door pull rod 9 are rotated in opposite directions, and the distance between the door pull slider 14 and the door traction block 8 can be adjusted by rotating the door pull rod 9.
[0024] The platform mechanism 2 includes a lifting platform 18 and a roller needle bearing 17 , and is connected to the lifting platform 18 via a threaded column at the side end of the roller needle bearing 17 .
[0025] During the lifting process of the lifting platform 18, the roller needle bearing 17 cooperates with the door traction block 8 to complete the opening and closing of the cabin door. When the cabin is in a fully closed state, the platform is at the lowest position, the roller needle bearing 17 presses the door traction block 8, and the spring 11 is in the state of maximum compression. Figure 4 As shown; the platform rises, and under the elastic force of the spring 11, the spring stopper 12 moves upward, driving the hatch traction block 8, the hatch pull rod 9, and the hatch pull slider 14 to move upward as a whole, so that the flip connecting rod 15 pushes the hatch 5 to rotate around the hatch shaft 4, so that the hatch 5 is opened, and the spring stopper 12 moves upward until it contacts the lower surface of the pull rod slide 13, and the hatch 5 is fully opened. When the hatch 5 is fully opened, the state of the cabin is as shown Figure 1 As shown; after the hatch door is fully opened, the platform 18 continues to rise to the highest position. When the platform 18 starts to descend from the highest position, the hatch door 5 is in an open state; the platform 18 descends until the front roller needle bearing 17 contacts the hatch door traction block 8, and the platform 18 continues to descend, driving the hatch door traction block 8, the hatch door pull rod 9, and the hatch door pulling slider 14 to move downward as a whole, so that the flip connecting rod 15 pulls the hatch door 5 to rotate around the hatch door shaft 4, so that the hatch door 5 is closed; when the platform descends to the lowest position, the hatch door 5 is completely closed.
[0026] This embodiment uses a mechanical linkage mechanism to replace the control system of the independent motor-controlled cabin door. The opening and closing states of the cabin door have a follow-up relationship with the lifting and lowering movement of the platform, which makes the internal structure of the UAV cabin simpler, increases the internal usable space of the cabin, and reduces the difficulty of cabin assembly. Military equipment has high requirements for the accuracy of the motors used, the working storage temperature, and maintenance. Reducing the number of motors can save the manufacturing cost of the cabin. Experiments have shown that the hatch cover control mechanism of the UAV cabin of the utility model is stable, reliable, and efficient, and can meet the requirements of opening and closing the cabin door.
[0027] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make several modifications and improvements without departing from the principle of the present invention, and these modifications and improvements should also be considered to belong to the protection scope of the present invention.
Claims
1. A door control mechanism suitable for a multi-rotor UAV cabin, characterized in that: It includes a cabin body, a door pull rod mechanism and a platform mechanism; The cabin body comprises a box frame (1), a door (5), a door rotation shaft (4), a left door connecting rod arm (6), and a right door connecting rod arm (7); the door (5) is hinged to the box frame (1) via the door rotation shaft (4); the left door connecting rod arm (6) and the right door connecting rod arm (7) are respectively fixed to the lower surfaces of the left and right doors; Two groups of door pull rod mechanisms (3) are symmetrically arranged on the left and right sides of the box frame (1), and the two have the same structure; the door pull rod mechanism (3) on the left side includes a flip connecting rod (15), a pull rod slide seat (13), a door pulling slide block (14), a door pull rod (9), a spring stopper (12), a compression spring (11), a spring support seat (10) and a door pulling block (8); the pull rod slide seat (13) and the spring stopper (12) are fixed on the left side of the box frame; the upper end of the door pull rod (9) passes through the spring stopper (12), the pull rod slide seat (13) and the lower end of the door pulling slide block (14) in sequence, and is connected to the lower end of the door pulling slide block (14) by threading; one end of the flip connecting rod (15) is connected to the door pulling slide block (14) The upper end of the slider (14) is hinged, and the other end of the flip link (15) is hinged to the left door link arm (6); the lower end of the door pull rod (9) passes through the compression spring (11) and the spring stopper (12) in sequence and is connected to the door traction block (8) through a thread; the flip link (15) is fixedly connected to the left door link arm (6); wherein the threads at both ends of the door pull rod (9) are rotated in opposite directions, and the distance between the door pulling slider (14) and the door traction block (8) can be adjusted by rotating the door pull rod (9); the spring support seat (10) is fixedly arranged on the door pull rod (9), and the compression spring (11) is arranged between the spring stopper (12) and the spring support seat (10); The platform mechanism (2) comprises a lifting platform (18) and a roller needle bearing (17); the lifting platform (18) is connected to the hatch door traction block (8) via the roller needle bearing (17).
2. The door control mechanism for a multi-rotor UAV cabin according to claim 1, characterized in that: The front panel of the box frame (1) is prefabricated with a mounting hole for the door pull rod mechanism, and the front and rear panels thereof are prefabricated with mounting holes for the door rotating shaft (4).
3. The door control mechanism for a multi-rotor UAV cabin according to claim 1, characterized in that: A square slide groove is arranged at the lower end of the pull rod slide seat (13) for limiting the left-right deviation when the cabin door pulls the slide block (14) to move up and down.
4. The door control mechanism for a multi-rotor UAV cabin according to claim 1, characterized in that: The compression spring (11) is always in a compressed state.