Mother-son unmanned aerial vehicle throwing device
The dual-unlocking mode of the mother-daughter drone drop device solves the problems of complex structure and heavy weight in existing technologies, achieving stable installation and controllable unlocking of the daughter drone, and improving operational efficiency and scene adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI UNIV OF SCI & TECH
- Filing Date
- 2025-09-29
- Publication Date
- 2026-05-19
AI Technical Summary
Existing mother-daughter drone drop devices are complex in structure and heavy in weight, making it difficult to be compatible with daughter drones of different sizes and weights. This results in low operational efficiency and weak adaptability to different scenarios, failing to meet the needs of complex tasks.
The mother-daughter drone drop device, which adopts a dual unlocking mode, achieves stable installation and controllable unlocking of the daughter drone through a snap-fit mechanism and servo motor drive inside the shell of the mother drone. Combined with a reset spring and sliding snap-fit, it ensures stable and controllable unlocking.
It improves the operational efficiency and scenario adaptability of the mother-daughter UAV system, meets the needs of complex tasks, and ensures the convenience and reliability of the unlocking process.
Smart Images

Figure CN224256942U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a device for launching the daughter unit of a mother-daughter UAV. Background Technology
[0002] Unmanned aerial vehicles (UAVs) are aircraft that do not require pilots to operate. They rely on onboard computer systems to complete flight missions autonomously and remotely. They are intelligent aerial platforms that integrate aerodynamics, electronic communication, and artificial intelligence technologies. With the development of UAV technology, they are widely used in logistics, rescue, military, and agriculture. Traditional UAVs have a single structure, which limits their mission execution. To improve operational efficiency and scenario adaptability, mother-daughter UAV systems use a mother aircraft to carry daughter aircraft, which are released on demand in the target area to achieve distributed collaborative operations.
[0003] A mother-daughter UAV drop device is a system installed on the mother UAV to release the daughter UAV from the mother UAV and enable it to fly independently. It ensures that the daughter UAV separates from the mother UAV safely and accurately and enters the predetermined flight state. During the flight of the mother UAV, the drop device can release the daughter UAV to a designated location according to the mission requirements to achieve diverse mission objectives. However, in the existing mother-daughter UAV drop devices, the drop device structure of the mother UAV system is relatively complex and heavy, and it is difficult to be compatible with daughter UAVs of different sizes and weights. This results in low operating efficiency and weak scene adaptability of the mother-daughter UAV system, which cannot meet the requirements of complex missions. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a mother-daughter drone daughter drone launching device, which aims to improve the problems of low operating efficiency and weak scene adaptability of the mother-daughter drone system caused by the relatively complex structure, heavy weight, and difficulty in compatibility with daughter drones of different sizes and weights in the existing technology.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mother-daughter drone daughter drone launching device, comprising a mother drone end connecting shell, a latching mechanism fixedly connected to the middle of the inner wall of the mother drone end connecting shell, the latching mechanism being for convenient installation and adjustment, and a manual push rod slidably connected to the rear side of the inner wall of the mother drone end connecting shell; the latching mechanism includes a daughter drone end connecting shell, the daughter drone end connecting shell being slidably connected to the bottom of the inner wall of the mother drone end connecting shell, a short sliding latch slidably connected to the right side of the inner wall of the mother drone end connecting shell, a long sliding latch slidably connected to the left side of the middle part of the mother drone end connecting shell, a return spring fixedly connected to the left side of the outer wall of the long sliding latch, and a drive assembly fixedly connected to the top right side of the mother drone end connecting shell.
[0006] As a further description of the above technical solution:
[0007] The drive assembly includes a servo motor, which is fixedly connected to the top right side of the mother machine end connecting housing. The output end of the servo motor is fixedly connected to a drive gear. A rocker arm is fixedly connected to one side of the outer wall of the drive gear. A rack passes through the right side of the inner wall of the mother machine end connecting housing. The rack meshes with the drive gear and is slidably connected to the left side of the outer wall of the short sliding buckle.
[0008] As a further description of the above technical solution:
[0009] A sliding buckle cover plate is fixedly connected to the top of the outer wall of the mother machine end connecting housing, and multiple screws are threaded around the outer wall of the sliding buckle cover plate.
[0010] As a further description of the above technical solution:
[0011] A sliding buckle cover plate 2 is fixedly connected to the middle of the inner wall of the mother machine end connecting housing, and screws 2 are threaded around the outer wall of the sliding buckle cover plate 2.
[0012] As a further description of the above technical solution:
[0013] The outer wall of the mother machine end connecting housing is provided with exhaust holes on the front and rear sides, and a gasket is fixedly connected to the top of the inner wall of the mother machine end connecting housing.
[0014] As a further description of the above technical solution:
[0015] The outer wall of the servo motor is threaded with bolt 1 on the left and right sides, and the outer wall of the servo motor is threaded with bolt 2 around the perimeter.
[0016] This utility model has the following beneficial effects:
[0017] In this invention, the device achieves locking and releasing of the slave unit through a dual unlocking mode. The master unit is connected to the internal snap-fit mechanism of the housing, and the slave unit is connected to the housing through a short sliding snap-fit and a long sliding snap-fit, which are engaged in their snap-fit slots. With the help of a return spring, a stable installation is achieved. Pressing the manual push rod causes it to slide axially, which moves the long and short sliding snap-fits. Under the action of the return spring, the two snap-fits slide along the limiting track groove of the base of the master unit's housing with a short stroke. The snap-fit rib disengages from the slave unit's snap-fit slot, completing the unlocking. The servo motor starts, and through the drive gear and rocker arm, it drives the rack to slide. The two snap-fits slide along the limiting track groove with a short stroke, and the snap-fit rib disengages from the slave unit's snap-fit slot, completing the release. This ensures stable and controllable unlocking, takes into account both the convenience of debugging and the reliability of operation, improves the operating efficiency and scene adaptability of the master-slave unmanned aerial vehicle system, and meets the needs of complex tasks. Attached Figure Description
[0018] Figure 1 This is a perspective view of a mother-daughter drone daughter drone launching device proposed in this utility model;
[0019] Figure 2 This is a front view of a mother-daughter UAV daughter aircraft launching device proposed in this utility model;
[0020] Figure 3 This is a cross-sectional view of a mother-daughter unmanned aerial vehicle (UAV) daughter aircraft launching device proposed in this utility model;
[0021] Figure 4 This is a structural exploded view of a mother-daughter drone daughter drone launching device proposed in this utility model;
[0022] Figure 5 This is a partial structural cross-sectional view of a mother-daughter unmanned aerial vehicle (UAV) daughter aircraft launching device proposed in this utility model.
[0023] Legend:
[0024] 1. Mother unit end connecting housing; 2. Buckling mechanism; 201. Daughter unit end connecting housing; 202. Short sliding buckle; 203. Long sliding buckle; 204. Return spring; 205. Drive assembly; 2051. Servo motor; 2052. Drive gear; 2053. Rocker arm; 2054. Rack; 3. Sliding buckle cover plate one; 4. Screw one; 5. Sliding buckle cover plate two; 6. Screw two; 7. Manual push rod; 8. Exhaust hole; 9. Bolt one; 10. Washer; 11. Bolt two. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a mother-daughter UAV daughter aircraft launching device, comprising a mother aircraft end connecting housing 1, a latching mechanism 2 fixedly connected to the middle of the inner wall of the mother aircraft end connecting housing 1 for easy installation and adjustment, and a manual push rod 7 slidably connected to the rear side of the inner wall of the mother aircraft end connecting housing 1; the latching mechanism 2 includes a daughter aircraft end connecting housing 201, which is slidably connected to the bottom of the inner wall of the mother aircraft end connecting housing 1, a short sliding latch 202 slidably connected to the right side of the inner wall of the mother aircraft end connecting housing 1, and a long sliding latch 203 slidably connected to the left side of the middle of the mother aircraft end connecting housing 1. A return spring 204 is fixedly connected to the left side of the outer wall of 03. A drive assembly 205 is fixedly connected to the top right side of the mother machine end connecting housing 1. The drive assembly 205 includes a servo motor 2051. The servo motor 2051 is fixedly connected to the top right side of the mother machine end connecting housing 1. A drive gear 2052 is fixedly connected to the output end of the servo motor 2051. A rocker arm 2053 is fixedly connected to one side of the outer wall of the drive gear 2052. A rack 2054 passes through the right side of the inner wall of the mother machine end connecting housing 1. The rack 2054 meshes with the drive gear 2052. The rack 2054 is slidably connected to the left side of the outer wall of the short sliding buckle 202.
[0027] Specifically, in the overall structure, the main load-bearing component is the connecting housing 1 at the mother unit end. Its internal locking mechanism 2 connects and locks the slave unit. The connecting housing 201 at the slave unit end engages with the connecting housing 1 at the mother unit end via short sliding latches 202 and long sliding latches 203. The two latches engage in the latching grooves of the connecting housing 201 at the slave unit end, and with the pre-tightening force of the return spring 204, the slave unit is securely installed. The manual unlocking mode is used for ground installation and debugging. When unlocking is required, the operator presses the manual push rod 7, extending it to the connecting housing 1 at the mother unit end, causing it to slide axially. This simultaneously moves the long sliding latch 203 and the short sliding latch 202. Under the elastic force of the return spring 204, the two latches slide along the limiting track groove for a short stroke. The buckle detaches from the latch slot of the sub-unit end connecting housing 201, and the sub-unit detaches from the mother unit. The servo motor unlocking mode is used for the take-off and operation of the mother-daughter UAV. In this mode, the drive component 205 is used as the power source. After the servo motor 2051 is started, the output end drives the drive gear 2052 to rotate, which drives the rack 2054 to slide. Through the rocker arm 2053 to assist in the transmission of force, the rack 2054 slides on the left side of the short sliding latch 202, which simultaneously drives the long sliding latch 203 to move. Under the action of the return spring 204, the two latches slide along the limit track groove for a short stroke, and the buckle detaches from the latch slot of the sub-unit end connecting housing 201. The sub-unit is automatically released, ensuring stable and controllable unlocking. This satisfies both the convenience of debugging and the reliability of aerial operation.
[0028] Reference Figure 2 , Figure 3 and Figure 5A sliding buckle cover plate 3 is fixedly connected to the top of the outer wall of the mother machine end connecting housing 1. Multiple screws 4 are threaded around the outer wall of the sliding buckle cover plate 3. A sliding buckle cover plate 5 is fixedly connected to the middle of the inner wall of the mother machine end connecting housing 1. Screws 6 are threaded around the outer wall of the sliding buckle cover plate 5. Vent holes 8 are opened on the front and rear sides of the outer wall of the mother machine end connecting housing 1. A gasket 10 is fixedly connected to the top of the inner wall of the mother machine end connecting housing 1. Bolts 9 are threaded around the outer wall of the servo motor 2051. Bolts 11 are threaded around the outer wall of the servo motor 2051.
[0029] Specifically, the main load-bearing structure is the connecting shell 1 of the mother unit. The sliding buckle cover 3 on the top of its outer wall is fixed by multiple screws 4, forming a double-layer limiting structure with the sliding buckle cover 5 on the middle of the inner wall, which is fastened by screws 6. Together, they provide a stable mounting space for the sub-unit. At the same time, the sliding characteristics of the cover plate are adapted to the installation and positioning of the sub-unit. The gasket 10 on the top of the inner wall can buffer the impact force when the sub-unit is placed, reducing the impact of vibration. When the sub-unit needs to be launched, the servo motor 2051 is driven by the driving force. The bolts 9 and 11 on its outer wall ensure that the push rod is firmly connected to the component. The extension and retraction of the push rod drives the sliding buckle structure to unlock, allowing the sub-unit to detach from the connecting shell 1 of the mother unit. During the whole process, the exhaust holes 8 on the front and rear sides of the outer wall of the shell can release the internal airflow, avoiding the stability of the component due to excessive temperature during operation, and ensuring that the launching action is completed accurately and efficiently. The servo motor 2051 is connected to the control system of the mother UAV and can be controlled by the control system of the mother UAV to lock and detach. It shares the power supply with the mother UAV.
[0030] Working principle: In the overall structure, the mother machine end connecting housing 1 serves as the main load-bearing component. Its internal latching mechanism 2 locks and unlocks the slave machine. The slave machine end connecting housing 201 forms a latching engagement with the mother machine end connecting housing 1 through short sliding latches 202 and long sliding latches 203. The short sliding latches 202 and long sliding latches 203 respectively engage with the latching grooves of the slave machine end connecting housing 201. The slave machine end connecting housing 201 has latching grooves inside that are the same shape as the sliding latches but slightly larger in size. When the slave machine end connecting housing 201 connects with the mother machine end connecting housing 1, the latching grooves drive the return spring 204. Under the action of the long sliding buckle 203 and the short sliding buckle 202, they automatically engage with the buckle groove to achieve a self-locking connection between the slave unit end connecting housing 201 and the mother unit end connecting housing 1. Combined with the pre-tightening force of the return spring 204, this ensures a stable installation of the slave unit on the mother unit. The manual unlocking mode is suitable for ground installation and debugging scenarios. When unlocking is required, the operator presses the part of the manual push rod 7 that extends to the outside of the mother unit end connecting housing 1, causing the manual push rod 7 to slide axially. This sliding motion simultaneously moves the long sliding buckle 203 and the short sliding buckle 202. Under the elastic force of the return spring 204, the two buckles are locked together along the mother unit end connecting... The limiting track groove of the base of the shell 1 slides for a short stroke. The buckles of the long sliding buckle 203 and the short sliding buckle 202 disengage from the buckle groove inside the shell 201 at the end of the slave unit, completing the unlocking and allowing the slave unit to detach from the mother unit. The servo unlocking mode is used for operational scenarios after the mother-daughter UAV takes off. In this mode, the drive component 205 is used as the power source. After the servo motor 2051 is started, its output end drives the drive gear 2052 to rotate. The drive gear 2052 simultaneously drives the meshing rack 2054 to slide, and the power is transmitted through the rocker arm 2053. The sliding of the rack 2054 directly acts on the short sliding buckle. On the left side of 202, the long sliding buckle 203 moves synchronously. Under the action of the reset spring 204, the two buckles also slide along the limit track groove for a short stroke. The buckle bone disengages from the buckle groove of the sub-unit end connecting housing 201, realizing the automatic release of the sub-unit. Both modes ensure that the unlocking process is stable and controllable through the displacement linkage of the sliding buckle and the spring reset mechanism. The upper part of the mother unit end connecting housing 1 has a rectangular through hole, and the lower part of the sub-unit end connecting housing 201 has a rectangular through hole. Both can be connected to the mother UAV through strip nylon straps, which not only meets the convenience of ground debugging, but also ensures the reliability of aerial operation.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A mother-daughter unmanned aerial vehicle (UAV) daughter aircraft launching device, comprising a mother aircraft end connecting housing (1), characterized in that: A buckle mechanism (2) is fixedly connected to the middle of the inner wall of the mother machine end connecting housing (1). The buckle mechanism (2) is used for easy installation and adjustment. A manual push rod (7) is slidably connected to the rear side of the inner wall of the mother machine end connecting housing (1). The latching mechanism (2) includes a slave end connecting housing (201), which is slidably connected to the bottom of the inner wall of the master end connecting housing (1). A short sliding latch (202) is slidably connected to the right side of the inner wall of the master end connecting housing (1). A long sliding latch (203) is slidably connected to the left side of the middle part of the master end connecting housing (1). A return spring (204) is fixedly connected to the left side of the outer wall of the long sliding latch (203). A drive assembly (205) is fixedly connected to the right side of the top of the master end connecting housing (1).
2. The device for launching daughter drones from a mother-daughter drone according to claim 1, characterized in that: The drive assembly (205) includes a servo motor (2051), which is fixedly connected to the top right side of the mother machine end connecting housing (1). The output end of the servo motor (2051) is fixedly connected to a drive gear (2052). A rocker arm (2053) is fixedly connected to one side of the outer wall of the drive gear (2052). A rack (2054) passes through the right side of the inner wall of the mother machine end connecting housing (1). The rack (2054) meshes with the drive gear (2052). The rack (2054) is slidably connected to the left side of the outer wall of the short sliding buckle (202).
3. The device for launching daughter drones from a mother-daughter drone according to claim 1, characterized in that: The top of the outer wall of the mother machine end connecting housing (1) is fixedly connected to a sliding buckle cover plate (3), and multiple screws (4) are threaded around the outer wall of the sliding buckle cover plate (3).
4. The device for launching daughter drones from a mother-daughter drone according to claim 3, characterized in that: The inner wall of the mother machine end connecting housing (1) is fixedly connected to a sliding buckle cover plate two (5), and the outer wall of the sliding buckle cover plate two (5) is threaded with screws two (6).
5. The device for launching daughter drones from a mother-daughter drone according to claim 1, characterized in that: The outer wall of the mother machine end connecting housing (1) is provided with exhaust holes (8) on the front and rear sides, and a gasket (10) is fixedly connected to the top of the inner wall of the mother machine end connecting housing (1).
6. The device for launching daughter drones from a mother-daughter drone according to claim 2, characterized in that: The outer wall of the servo motor (2051) is threaded with bolt 1 (9) on the left and right sides, and the outer wall of the servo motor (2051) is threaded with bolt 2 (11) around the perimeter.