Unmanned aerial vehicle parachute cabin opening cover device capable of guiding parachute to exit from cabin

Abstract

The utility model relates to the field of unmanned aerial vehicle structural design, and provides an unmanned aerial vehicle parachute cabin opening cover device capable of guiding a parachute to exit from a cabin, the unmanned aerial vehicle parachute cabin opening cover device comprises a parachute cabin opening cover and a bounce-off mechanism, and the rear end of the parachute cabin opening cover is connected with a parachute cabin wall on one side of the parachute cabin through the bounce-off mechanism. A front cover of the parachute cabin opening cover is pressed on the other side of the parachute cabin device through a pressing piece so as to seal a parachute cabin opening, when the unmanned aerial vehicle needs parachute landing and drives the pressing piece to be loosened, the parachute cabin opening cover is bounced through the bouncing mechanism, the parachute cabin opening is opened, the bouncing mechanism is provided with a protruding end, and the protruding end is connected with the parachute cabin opening cover. The protruding end is used for limiting the parachute hatch cover when the parachute hatch cover bounces, so that the parachute hatch cover is opened by a certain angle, and then the parachute is pulled out along the inner surface of the parachute hatch cover along the opening angle of the parachute hatch cover. The parachute can be pulled out in a certain direction, and the releasing reliability of the recovery parachute is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane structure design field, specifically, relate to a kind of unmanned plane umbrella hatch cover device that can guide parachute to exit cabin. BACKGROUND

[0002] The unmanned plane parachute is the emergency recovery system of unmanned plane, parachute landing can greatly reduce the risk of unmanned plane out of control in the process of landing, to improve the security of unmanned plane, while parachute landing will reduce the descent speed of unmanned plane, and unmanned plane can be safely recovered by parachute landing, for example, in the Chinese patent application No. 201621065647.3, a kind of parachute cabin device and unmanned plane for unmanned plane are disclosed, the parachute cabin device is provided with a parachute hatch cover at the opening of the parachute cabin, one end of the parachute hatch cover is connected with one end of the parachute cabin body, the other end is clamped with the other side of the parachute cabin body through the clamping element, and the clamping element is connected with the driving mechanism to clamp or open the parachute hatch cover, so as to realize the ejection of the parachute.

[0003] However, some unmanned planes use propeller engines or have vertical tail wings at the back of the plane, and the parachute is easily wrapped around the engine propeller or hung on the tail wing under the influence of air flow after being pulled out of the parachute cabin, so that the parachute cannot work normally. The existing parachute cabin device of unmanned plane cannot pull out the parachute in a certain direction, so it is necessary to design a parachute hatch cover that can meet the requirements of opening and throwing parachute in the air, and can pull out the parachute in a certain direction to prevent the parachute from being wrapped around the engine propeller, etc., and ensure the reliability of parachute release. UTILITY MODEL CONTENTS

[0004] The utility model solves the problem of how to provide a parachute hatch cover for unmanned plane, which can pull out the parachute in a certain direction.

[0005] To solve the above problems, the utility model provides a parachute hatch cover device for unmanned plane, which can guide the parachute to exit the cabin, comprising: a parachute hatch cover and a pop-up mechanism, the rear end of the parachute hatch cover is connected with the parachute wall on one side of the parachute cabin through the pop-up mechanism, when the unmanned plane is flying normally, the front cover of the parachute hatch cover is pressed tightly on the other side of the parachute cabin device by the pressing element to close the parachute hatch, when the unmanned plane needs parachute landing and drives the pressing element to loosen, the parachute hatch cover is popped up through the pop-up mechanism, the parachute hatch is opened, the pop-up mechanism is provided with a protruding end, the protruding end is used to limit the parachute hatch cover when the parachute hatch cover is popped up, so that the parachute hatch cover is opened at a certain angle, and then the parachute is pulled out along the inner surface of the parachute hatch cover according to the angle at which the parachute hatch cover is opened.

[0006] Further, the ejecting mechanism comprises a first hinge, a second hinge and a torsion spring mechanism, a leaf of the first hinge is fixedly connected with the parachute hatch cover, a leaf of the second hinge is fixedly connected with a parachute wall on one side of the parachute cabin, and connecting shafts of the first hinge and the second hinge are connected through the torsion spring mechanism.

[0007] Further, the torsion spring mechanism comprises a first torsion spring and a through bar, one end of the first torsion spring abuts against the first hinge, the other end abuts against the second hinge, and the through bar sequentially connects the connecting shaft of the first hinge, the middle part of the first torsion spring and the connecting shaft of the second hinge.

[0008] Further, the second hinge is fixed with the protruding end, and the protruding end is located outside the parachute cabin and forms a certain angle with the parachute hatch cover.

[0009] Compared with the prior art, the parachute hatch cover device has the following beneficial effects:

[0010] When the unmanned aerial vehicle adopting the parachute hatch cover device receives a recovery instruction or autonomously issues a recovery instruction, the unmanned aerial vehicle drives the pressing part to move away from the parachute hatch cover, the parachute hatch cover is ejected under the torsional force generated by the torsion spring, the outer surface of the parachute hatch cover abuts against the protruding end on the second hinge after the parachute hatch cover is opened, and the parachute hatch cover can only be opened by a certain angle, so that the parachute moves away from the parachute cabin along the inner surface of the parachute hatch cover at the opening angle of the parachute hatch cover, the torsion spring force can enable the parachute hatch cover to be safely opened against the aerodynamic load, and the protruding end can enable the parachute hatch cover to be opened by a specified angle, so that the parachute is pulled out along the opening angle of the parachute hatch cover, thereby meeting the need of opening the parachute hatch cover of the unmanned aerial vehicle in the air and avoiding that the direction in which the parachute is pulled out is not controlled, thereby affecting flight safety. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 FIG. 1 is a schematic structural diagram of a closed state of a parachute hatch cover device according to an embodiment of the present application;

[0012] Figure 2 FIG. 2 is a schematic structural diagram of an opened state of the parachute hatch cover device according to the embodiment of the present application;

[0013] Figure 3 FIG. 3 is a schematic structural diagram of an ejecting mechanism according to the embodiment of the present application.

[0014] REFERENCE SIGNS:

[0015] 1-parachute hatch cover; 2-first hinge; 3-second hinge; 4-parachute wall; 5-through bar; 6-torsion spring; 31-protruding end. DETAILED DESCRIPTION

[0016] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0017] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "arrangement", "installation", "connection", "connect" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, can be direct connection, also can be indirectly connected through the intermediate medium, can be two elements inside the communication. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according of the specific circumstances.

[0018] In the description of the specification, the description of the terms "embodiment", "one embodiment" and "one embodiment" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or embodiment are included in at least one embodiment or embodiment of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or embodiments in a suitable manner.

[0019] As Figures 1-3 shown, the utility model provides a kind of unmanned aerial vehicle parachute hatch cover device that can guide parachute to exit cabin, comprising: parachute hatch cover 1 and pop mechanism, the rear end of the parachute hatch cover 1 is connected with the parachute wall 4 of one side of parachute cabin by the pop mechanism, when unmanned aerial vehicle normally flies, the front cover of the parachute hatch cover 1 is pressed in the other side of the parachute device by pressing piece, to close parachute hatch, when unmanned aerial vehicle needs parachute and drives the pressing piece to loosen, the parachute hatch cover 1 is popped up by the pop mechanism, opens the parachute hatch, setting of protruding end 31 is carried out on the pop mechanism, the protruding end 31 is used to limit the parachute hatch cover 1 when the parachute hatch cover 1 is popped up, makes the parachute hatch cover 1 open certain angle, further makes parachute along the angle that the parachute hatch cover 1 opens and pulls out along the inner surface of the parachute hatch cover 1.

[0020] When normally flying, as Figure 1 shown, parachute hatch cover 1 is in closed state, the front cover of parachute hatch cover 1 is pressed in parachute device by pressing piece, and the pressing piece can be the rocker controlled by rudder in the body.

[0021] As Figure 3 shown, the rear end of parachute hatch cover 1 is connected with parachute wall 4 by first hinge 2, second hinge 3, and torsional spring 6 is strung between first hinge 2 and second hinge 3. First hinge 2 is fixedly connected with parachute hatch cover 1, second hinge 3 is fixedly connected with parachute wall 4, and second hinge 3 has protruding end 31 extending out of parachute hatch cover 1. One end of torsional spring 6 abuts against first hinge 2, and the other end abuts against second hinge 3. First hinge 2, second hinge 3 and torsional spring 6 are sequentially strung by through bar 5.

[0022] When the UAV receives a recovery command or issues an autonomous recovery command, the servo inside the aircraft controls the joystick to rotate, and the joystick leaves the parachute hatch 1. Figure 2 As shown, the hatch cover 1 springs open under the torsion force generated by the torsion spring 6. Once opened, the hatch cover 1's outer surface presses against the raised end 31 of the second hinge 3, allowing the hatch cover 1 to open only to a certain angle. At this point, the parachute leaves the parachute compartment and is pulled out along the inner surface of the hatch cover 1, following the angle at which the hatch cover 1 opens. The force of the torsion spring 6 allows the hatch cover 1 to safely open despite aerodynamic loads. The raised end 31 of the hinge allows the hatch cover 1 to open to the specified angle, allowing the parachute to be pulled out along the hatch cover's opening angle, preventing the parachute from being pulled backwards under the influence of airflow. This prevents the parachute from affecting the rear wing or engine blades of the aircraft after opening. This ensures that the hatch cover 1 of the drone can be opened in mid-air while also preventing the parachute from being pulled out in an uncontrolled direction, potentially affecting flight safety.

[0023] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present utility model.

Claims

1. A drone parachute hatch cover device capable of guiding a parachute out of a cabin, characterized in that: include: A parachute hatch cover (1) and a pop-up mechanism, wherein the rear end of the parachute hatch cover (1) is connected to a parachute cabin wall (4) on one side of the parachute cabin through the pop-up mechanism. When the unmanned aerial vehicle (UAV) is flying normally, the front cover of the parachute hatch cover (1) is pressed against the other side of the parachute cabin by a pressing member to close the parachute hatch. When the UAV needs to parachute down and drives the pressing member to release, the parachute hatch cover (1) pops up through the pop-up mechanism to open the parachute hatch. A protruding end (31) is provided on the pop-up mechanism. The protruding end (31) is used to limit the parachute hatch cover (1) when the parachute hatch cover (1) pops up, so that the parachute hatch cover (1) opens to a certain angle, thereby causing the parachute to be pulled out along the inner surface of the parachute hatch cover (1) along the angle at which the parachute hatch cover (1) is opened.

2. The drone parachute hatch cover device capable of guiding a parachute out of a cabin according to claim 1, characterized in that: The pop-up mechanism comprises a first hinge (2), a second hinge (3) and a torsion spring mechanism, wherein the leaf of the first hinge (2) is fixedly connected to the umbrella hatch cover (1), the leaf of the second hinge (3) is fixedly connected to the umbrella cabin wall (4) on one side of the umbrella cabin, and the connecting shaft of the first hinge (2) and the second hinge (3) is connected via the torsion spring (6) mechanism.

3. The drone parachute hatch cover device capable of guiding a parachute out of a cabin according to claim 2, characterized in that: The torsion spring mechanism comprises a first torsion spring (6) and a cleaning rod (5), one end of the first torsion spring (6) abuts against the first hinge (2), and the other end abuts against the second hinge (3), and the cleaning rod (5) sequentially connects the connecting axis of the first hinge (2), the middle part of the first torsion spring (6) and the connecting axis of the second hinge (3) in series.

4. The drone parachute hatch cover device capable of guiding a parachute out of a cabin according to claim 3, characterized in that: The protruding end (31) is fixed on the second hinge (3), and the protruding end (31) is located outside the umbrella cabin and forms a certain angle with the umbrella hatch cover (1).

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