Pop-up mechanism of unmanned aerial vehicle parachute

Abstract

The utility model discloses an unmanned aerial vehicle parachute pop-up mechanism which comprises a parachute pack, a spring, a top plate and a locking mechanism, the parachute pack, the spring, the top plate and the locking mechanism are installed in a cabin, the bottom end of the spring is fixed to the bottom of the cabin, the top plate is connected to the top of the spring, the parachute pack is installed on the top plate, a cover plate is plugged at a pop-up opening of the cabin, and the cover plate is extruded to the top of the parachute pack. One end of the cover plate is hinged to one side of the ejection opening, and the other end of the cover plate is connected to the other side of the ejection opening through a locking mechanism. The parachute can be stably popped out and unfolded in the flying process, the unfolding process of the parachute has the advantages of being rapid, simple and reliable, and the whole mechanism has the advantages of being simple in structure, reliable in unfolding, stable in locking and light in overall weight.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles, and in particular relates to an ejection mechanism of a parachute of an unmanned aerial vehicle. Background Art

[0002] Drones are small, flexible, easy to take off and land, and are widely used in aircraft models, agriculture, inspections, aerial photography and other technical fields. When a drone is forced to land due to force majeure, the protective measure is to install a parachute protection device on the drone, and use the parachute during the forced landing of the drone to achieve the effect of slowly landing the drone. The drone landing protection device in the prior art generally uses complex circuits and motor drives, which are not only complex in structure, but also bulky, resulting in an increase in the load of the drone, which is bound to seriously affect the maneuverability of the drone.

[0003] In addition, there is also a method of using chemical explosions to force the parachute out of the parachute compartment, which not only causes environmental pollution but also cannot be reused. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an ejection mechanism for a parachute of a UAV in view of the deficiencies in the above-mentioned prior art, which can realize stable ejection and deployment of the parachute during flight, and the parachute deployment process has the advantages of being fast, concise and reliable. The entire mechanism has the advantages of simple structure, reliable deployment, stable locking and overall lightness.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an ejection mechanism of a drone parachute, including a parachute bag, a spring, a top plate and a locking mechanism installed in a cabin, the bottom end of the spring is fixed to the bottom of the cabin, the top plate is connected to the top of the spring, the parachute bag is installed on the top plate, the ejection port of the cabin is blocked with a cover plate, the cover plate is squeezed on the top of the parachute bag to put the spring in a compressed state, one end of the cover plate is hinged to one side of the ejection port, and the other end is connected to the other side of the ejection port through a locking mechanism.

[0006] The above-mentioned ejection mechanism of the drone parachute, the locking mechanism includes a locking tongue and a driving mechanism, the locking tongue is inserted into a lock seat on the cover plate; the driving mechanism is used to drive the locking tongue to be pulled out of the lock seat.

[0007] The ejection mechanism of the above-mentioned drone parachute, the driving mechanism includes a servo and a rocker arm, the lower end of the rocker arm is installed on the servo, and the locking tongue is installed on the upper end of the rocker arm. When the servo drives the rocker arm to rotate counterclockwise, the locking tongue is pulled out from the lock seat.

[0008] In the ejection mechanism of the above-mentioned drone parachute, the top plate is directly opposite to the ejection port, and when the parachute bag is ejected, the top plate is clamped inside the ejection port.

[0009] In the ejection mechanism of the above-mentioned drone parachute, one end of the cover plate is hinged to one side of the ejection port through a hinge.

[0010] Compared with the prior art, the utility model has the following advantages: the solution reduces the reliance on complex circuits and motors by simplifying the structure of the parachute ejection mechanism, which means that the drone can carry lighter equipment, thereby reducing the overall weight and improving maneuverability.

[0011] The parachute ejection mechanism design mentioned in the plan allows the parachute to be quickly ejected and deployed when needed. This is crucial for emergency landings and can minimize the risk of damage to the drone.

[0012] By using a spring and locking mechanism, this solution provides a stable locking mechanism to ensure that the parachute will not accidentally deploy in non-emergency situations, improving the reliability of the system.

[0013] Compared with the method of using chemical explosions to release parachutes, this solution avoids environmental pollution, and the parachutes can be reused, which meets the requirements of sustainable development and environmental protection.

[0014] The simplified structure could mean lower production and maintenance costs, an attractive advantage for commercial drone operators.

[0015] Due to the simple design of the mechanism, the UAV operator or maintenance personnel can more easily inspect and maintain the parachute, reducing operational complexity.

[0016] By ensuring that the parachute is deployed accurately at the right time, the safety of drone operations can be improved and the risk of accidents caused by parachute failure can be reduced.

[0017] This solution may be applicable to drones of different models and sizes, has good adaptability, and can be adjusted according to the specific needs of the drone.

[0018] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a perspective schematic diagram of the parachute of the utility model in a locked state.

[0020] Figure 2 It is a perspective schematic diagram of the parachute of the utility model in the opened state.

[0021] Figure 3 This is a schematic diagram of the appearance of the parachute of the utility model in a locked state.

[0022] Figure 4 The utility model is a schematic diagram of the state of the parachute in the parachute cabin.

[0023] Description of reference numerals:

[0024] DETAILED DESCRIPTION

[0025] like Figure 1 — Figure 4 As shown, a parachute ejection mechanism of a drone comprises a parachute bag 9, a spring 6, a top plate 7 and a locking mechanism installed in a cabin 3, wherein the bottom end of the spring 6 is fixed to the bottom of the cabin 3, the top plate 7 is connected to the top of the spring 6, the parachute bag 9 is installed on the top plate 7, and a cover plate 1 is sealed at the ejection port of the cabin 3, the cover plate 1 is pressed on the top of the parachute bag 9 to put the spring 6 in a compressed state, one end of the cover plate 1 is hinged to one side of the ejection port, and the other end is connected to the other side of the ejection port through a locking mechanism.

[0026] By integrating the parachute bag 9, the spring 6, the top plate 7 and the locking mechanism, the stable ejection and deployment of the parachute can be achieved, thereby improving the reliability of the parachute ejection mechanism.

[0027] The bottom end of the spring 6 is fixed to the bottom of the cabin 3, and the top plate 7 is connected to the top of the spring 6, so that the parachute bag 9 has sufficient elastic support when it is ejected, ensuring rapid deployment.

[0028] The cover plate 1 is pressed against the top of the umbrella bag 9, so that the spring 6 is in a compressed state, providing a stable locking mechanism to prevent the umbrella bag 9 from accidentally popping out in non-emergency situations.

[0029] The parachute bag 9 is directly installed in the cabin 3, and there is no need to guide the parachute. The parachute bag 9 is completely ejected from the cabin 3 by the elastic force of the spring 6 and unfolded with the airflow.

[0030] In this embodiment, the locking mechanism includes a lock tongue 5 and a driving mechanism. The lock tongue 5 is inserted into a lock seat 10 on the cover plate 1 ; the driving mechanism is used to drive the lock tongue 5 to be pulled out of the lock seat 10 .

[0031] The introduction of the locking mechanism, especially the design of the locking tongue 5 and the driving mechanism, provides a safe unlocking mechanism for the parachute ejection mechanism.

[0032] The lock tongue 5 is inserted into the lock seat 10 on the cover plate 1, ensuring the stability and reliability of the locking mechanism.

[0033] In this embodiment, the driving mechanism includes a servo 8 and a rocker arm 4, the lower end of the rocker arm 4 is installed on the servo 8, and the lock tongue 5 is installed on the upper end of the rocker arm 4. When the servo 8 drives the rocker arm 4 to rotate counterclockwise, the lock tongue 5 is pulled out of the lock seat 10.

[0034] The design of the driving mechanism including the steering gear 8 and the rocker arm 4 makes the unlocking process more precise and controllable.

[0035] The lower end of the rocker arm 4 is mounted on the steering gear 8, and the lock tongue 5 is mounted on the upper end of the rocker arm 4. The lock tongue 5 is pulled out by the driving of the steering gear 8, which simplifies the unlocking mechanism and improves the unlocking response speed.

[0036] In this embodiment, the top plate 7 is directly opposite to the ejection port, and when the parachute bag 9 is ejected, the top plate 7 is clamped on the inner side of the ejection port.

[0037] The design of the top plate 7 facing the ejection port ensures the directness and accuracy of the parachute bag 9 when it is ejected, and improves the ejection efficiency.

[0038] When the parachute bag 9 is ejected, the top plate 7 is clamped on the inner side of the ejection port, which helps to guide the parachute bag 9 to eject along a predetermined trajectory and reduce resistance and instability during the ejection process.

[0039] In this embodiment, one end of the cover plate 1 is hinged to one side of the ejection port through a hinge 2.

[0040] One end of the cover plate 1 is hinged to one side of the ejection port through a hinge 2, providing a flexible connection method so that the cover plate 1 can be easily opened and closed.

[0041] This design simplifies the installation and maintenance process of the cover 1, and also provides the necessary space and path for the ejection of the parachute.

[0042] When the utility model is used, it can be summarized into the following steps:

[0043] Step 1: Preparation stage:

[0044] The parachute mechanism is installed in the cabin 3 of the drone, the parachute bag 9 is fixed on the top plate 7, the bottom end of the spring 6 is fixed to the bottom of the cabin 3, and the top plate 7 is connected to the top of the spring 6 to form a spring 6 system in a compressed state.

[0045] Step 2, Lock status:

[0046] The cover plate 1 is sealed at the ejection port of the cabin 3. One end of the cover plate 1 is hinged to one side of the ejection port through a hinge 2, and the other end is connected to the other side of the ejection port through a locking mechanism. The locking tongue 5 is inserted into the locking seat 10 on the cover plate 1 to ensure that the parachute bag 9 is stably locked in the cabin 3.

[0047] Step 3: Trigger mechanism:

[0048] The trigger mechanism is activated when the drone encounters an emergency situation and needs to make an emergency landing, which is usually detected automatically by the drone's control system or safety system, or manually triggered by the operator.

[0049] Step 4: Unlocking process:

[0050] After the trigger mechanism is activated, the driving mechanism (such as the servo 8 and the rocker arm 4) starts to work, and the servo 8 drives the rocker arm 4 to rotate counterclockwise, so that the lock tongue 5 at the upper end of the rocker arm 4 is pulled out from the lock seat 10, thereby unlocking the cover plate 1.

[0051] Step 5: Pop-up action:

[0052] After the locking tongue 5 is pulled out, the cover plate 1 is quickly opened due to the compression force of the spring 6, and the parachute bag 9 is ejected from the ejection port due to the elastic force of the spring 6.

[0053] Step 6: Unfold the parachute bag 9:

[0054] After the parachute bag 9 is ejected, due to design considerations, the top plate 7 is opposite to the ejection port. When the parachute bag 9 is ejected, the top plate 7 is clamped on the inner side of the ejection port, which helps the parachute bag 9 to pop out and unfold along the correct direction and trajectory.

[0055] Step 7: Parachute fully deployed:

[0056] With the ejection of the parachute bag 9 and the guidance of the top plate 7, the parachute is rapidly deployed, increasing the air resistance, slowing down the descent speed of the UAV, and achieving a safe landing.

[0057] Step 8. Landing:

[0058] After the parachute is fully deployed, the drone slowly descends under the action of the parachute and finally lands safely.

[0059] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. An ejection mechanism for a parachute of a drone, characterized in that: It includes a parachute bag, a spring, a top plate and a locking mechanism installed in the cabin, the bottom end of the spring is fixed to the bottom of the cabin, the top plate is connected to the top of the spring, the parachute bag is installed on the top plate, the ejection port of the cabin is blocked with a cover plate, the cover plate is pressed on the top of the parachute bag to put the spring in a compressed state, one end of the cover plate is hinged to one side of the ejection port, and the other end is connected to the other side of the ejection port through a locking mechanism.

2. The ejection mechanism of a parachute for a drone according to claim 1, characterized in that: The locking mechanism comprises a lock tongue and a driving mechanism. The lock tongue is inserted into a lock seat on the cover plate. The driving mechanism is used for driving the lock tongue to be pulled out of the lock seat.

3. The ejection mechanism of a parachute for a drone according to claim 2, characterized in that: The driving mechanism comprises a steering gear and a rocker arm, the lower end of the rocker arm is mounted on the steering gear, and the locking tongue is mounted on the upper end of the rocker arm. When the steering gear drives the rocker arm to rotate counterclockwise, the locking tongue is pulled out of the lock seat.

4. The ejection mechanism of a parachute for a drone according to claim 1, characterized in that: The top plate is directly opposite to the ejection port, and when the parachute bag is ejected, the top plate is clamped on the inner side of the ejection port.

5. The ejection mechanism of a parachute for a drone according to claim 1, characterized in that: One end of the cover plate is hinged to one side of the ejection port through a hinge.

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