Wing folding and unfolding mechanism suitable for vertical take-off and landing aircraft

Abstract

The utility model relates to the technical field of vertical take-off and landing aircrafts, and discloses a wing folding and unfolding mechanism suitable for a vertical take-off and landing aircraft, which comprises a connecting machine body, a first air cylinder is fixedly connected with an inner cavity of the connecting machine body, and a piston plate is fixedly sleeved on an output shaft of the first air cylinder. An inner cavity of the connecting machine body is fixedly connected with a piston cylinder, the right side of the piston cylinder is fixedly connected with a one-way air inlet pipe, the right side of the piston cylinder is fixedly connected with a one-way air outlet pipe, the front side of the one-way air outlet pipe is fixedly connected with a multi-stage telescopic pipe, and an inner cavity of the multi-stage telescopic pipe is movably sleeved with a supporting rod. And the front side of the supporting rod is fixedly connected with a mounting rod. And the shielding curtain is pulled out through the mounting rod to be connected with the inner cavity of the machine body and shields the upper portion of the propeller, so that the propeller is protected, and the situation that the service life of the calendar is affected due to the fact that the propeller is damaged by the external environment in the long-time placement process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical take-off and landing aircraft, and more specifically, to a wing folding and spreading mechanism suitable for vertical take-off and landing aircraft. Background Art

[0002] A vertical take-off and landing aircraft is an aircraft that can fly without a runway. The propellers of the vertical take-off and landing aircraft rotate at high speed, generating an upward force, which in turn drives the aircraft to rise. After the flight, the wing folding mechanism is needed to fold the wings, thereby reducing the overall volume and further reducing the space required for storage. However, it may be parked outdoors for a long time, which may cause the propellers to be affected by the external environment. For example, rainy and snowy weather may cause damage to the propellers in addition to the flight time, reducing the calendar life of the propellers. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a wing folding and spreading mechanism suitable for a vertical take-off and landing aircraft, which has the advantage of providing protection.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a wing folding and unfolding mechanism suitable for a vertical take-off and landing aircraft, comprising a connecting body, the inner cavity of the connecting body is fixedly connected to a first cylinder, the output shaft of the first cylinder is fixedly sleeved with a piston plate, the inner cavity of the connecting body is fixedly connected to a piston cylinder, the right side of the piston cylinder is fixedly connected to a one-way air inlet pipe, the right side of the piston cylinder is fixedly connected to a one-way air outlet pipe, the front side of the one-way air outlet pipe is fixedly connected to a multi-stage telescopic tube, the inner cavity of the multi-stage telescopic tube is movably sleeved with a support rod, the front side of the support rod is fixedly connected to a mounting rod, the inner cavity of the connecting body is fixedly connected to a coil spring storage cylinder, and the inner cavity of the coil spring storage cylinder is provided with a shielding curtain.

[0005] As an optimal technical solution of the present invention, the front side of the connecting body is fixedly connected to a folding and unfolding mechanism, the rotating shaft of the folding and unfolding mechanism is fixedly connected to a wing, a limiting groove is provided on the top of the wing, the front side of the connecting body is fixedly connected to a second cylinder, and the output shaft of the second cylinder is fixedly connected to a limiting plug plate.

[0006] As an optimal technical solution of the present invention, a one-way air outlet valve is fixedly connected to the connection between the one-way air outlet pipe and the piston cylinder, and a one-way air inlet valve is fixedly connected to the connection between the one-way air inlet pipe and the piston cylinder.

[0007] As a preferred technical solution of the present invention, the multi-stage telescopic tube is composed of four telescopic tubes, the rear sides of the four telescopic tubes are fixedly connected to limit rings, and the front sides of the four telescopic rods are provided with circular holes.

[0008] As a preferred technical solution of the present invention, the shielding curtain is connected to the coil spring shaft in the inner cavity of the coil spring storage cylinder, and the mounting rod is fixedly connected to the shielding curtain.

[0009] As a preferred technical solution of the present invention, a control valve is fixedly connected to the rear side of the multi-stage telescopic tube, and the one-way air outlet pipe is communicated with the inner cavity of the multi-stage telescopic tube.

[0010] As a preferred technical solution of the present invention, the inner cavity of the wing is fixedly connected to a motor, and the output shaft of the motor is fixedly sleeved with a propeller.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. The utility model starts the first cylinder to drive the piston plate to move back and forth in the inner cavity of the piston cylinder. When the piston plate moves in the direction of the one-way air outlet pipe, the air in the inner cavity of the piston cylinder is squeezed along the one-way air outlet pipe to the inner cavity of the multi-stage telescopic tube. When the piston plate moves away from the one-way air outlet pipe, the external air is drawn into the inner cavity of the piston cylinder through the one-way air inlet pipe. The cycle is repeated, and the support rod of the inner cavity of the multi-stage telescopic tube is pushed out of the inner cavity of the connecting body, thereby driving the mounting rod to extend out of the inner cavity of the connecting body, and the shielding curtain is pulled out of the inner cavity of the connecting body through the mounting rod and shielded above the propeller, thereby protecting the propeller, and preventing the propeller from being damaged by the external environment during long-term storage, thereby affecting the calendar life.

[0013] 2. The utility model drives the wing to move toward the connection direction of the fuselage through the folding and unfolding mechanism, thereby folding the wing and propeller, and then starts the second cylinder to drive the limit plug plate to move downward, so that the limit plug plate is inserted into the inner cavity of the limit groove to limit and fix the wing, thereby improving the stability of the wing after folding and preventing it from moving again. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the piston-cylinder connection structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the wing connection structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the connection of the coil spring storage tube of the utility model structure;

[0018] Figure 5 This is a schematic diagram of the connection of the multi-stage telescopic tube structure of the utility model.

[0019] In the figure: 1. Connecting body; 2. Folding and unfolding mechanism; 3. Wing; 4. Motor; 5. Propeller; 6. First cylinder; 7. Piston plate; 8. Piston cylinder; 9. One-way air inlet pipe; 10. One-way air outlet pipe; 11. Limiting groove; 12. Multi-stage telescopic tube; 13. Support rod; 14. Mounting rod; 15. Coil spring storage tube; 16. Window curtain; 17. Second cylinder; 18. Limiting plug plate; 19. Control valve. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figures 1 to 5 As shown, the utility model provides a wing folding and unfolding mechanism suitable for a vertical take-off and landing aircraft, comprising a connecting body 1, an inner cavity of the connecting body 1 is fixedly connected to a first cylinder 6, an output shaft of the first cylinder 6 is fixedly sleeved with a piston plate 7, an inner cavity of the connecting body 1 is fixedly connected to a piston cylinder 8, a right side of the piston cylinder 8 is fixedly connected to a one-way air inlet pipe 9, a right side of the piston cylinder 8 is fixedly connected to a one-way air outlet pipe 10, a front side of the one-way air outlet pipe 10 is fixedly connected to a multi-stage telescopic tube 12, an inner cavity of the multi-stage telescopic tube 12 is movably sleeved with a support rod 13, a front side of the support rod 13 is fixedly connected to a mounting rod 14, an inner cavity of the connecting body 1 is fixedly connected to a coil spring storage cylinder 15, and an inner cavity of the coil spring storage cylinder 15 is provided with a shielding curtain 16;

[0022] By starting the first cylinder 6, the piston plate 7 is driven to move back and forth in the inner cavity of the piston cylinder 8. When the piston plate 7 moves toward the one-way air outlet pipe 10, the air in the inner cavity of the piston cylinder 8 is squeezed along the one-way air outlet pipe 10 to the inner cavity of the multi-stage telescopic tube 12. When the piston plate 7 is away from the one-way air outlet pipe 10, the external air is drawn into the inner cavity of the piston cylinder 8 through the one-way air inlet pipe 9. The cycle is repeated, and the support rod 13 in the inner cavity of the multi-stage telescopic tube 12 is pushed out of the inner cavity of the connecting body 1, thereby driving the mounting rod 14 to extend out of the inner cavity of the connecting body 1, and the shielding curtain 16 is pulled out of the inner cavity of the connecting body 1 through the mounting rod 14 and blocked above the propeller 5, thereby protecting the propeller 5, thereby preventing the propeller 5 from being damaged by the external environment during long-term storage, thereby affecting the calendar life.

[0023] The front side of the connecting body 1 is fixedly connected to a folding and unfolding mechanism 2, the rotating shaft of the folding and unfolding mechanism 2 is fixedly connected to the wing 3, the top of the wing 3 is provided with a limiting groove 11, the front side of the connecting body 1 is fixedly connected to a second cylinder 17, and the output shaft of the second cylinder 17 is fixedly connected to a limiting plug plate 18;

[0024] The wing 3 is driven to move toward the connection direction of the body 1 by the folding and unfolding mechanism 2, thereby folding the wing 3 and the propeller 5. Then, the second cylinder 17 is started to drive the limit plug 18 to move downward, so that the limit plug 18 is inserted into the inner cavity of the limit groove 11 to limit and fix the wing 3, thereby improving the stability of the wing 3 after folding and preventing it from moving again.

[0025] Among them, the connection between the one-way air outlet pipe 10 and the piston cylinder 8 is fixedly connected with a one-way air outlet valve, and the connection between the one-way air inlet pipe 9 and the piston cylinder 8 is fixedly connected with a one-way air inlet valve;

[0026] The piston plate 7 is driven by the first cylinder 6 to move back and forth in the inner cavity of the piston cylinder 8. When the piston plate 7 moves toward the one-way air outlet pipe 10, the air in the inner cavity of the piston cylinder 8 can be discharged from the one-way air outlet pipe 10 to the inner cavity of the multi-stage telescopic tube 12 through the one-way air outlet valve. When the piston plate 7 moves toward the direction of the first cylinder 6, the external air can enter the inner cavity of the piston cylinder 8 through the one-way air inlet valve and the one-way air inlet pipe 9 to replenish the air in the inner cavity of the piston cylinder 8.

[0027] The multi-stage telescopic tube 12 is composed of four telescopic tubes, the rear sides of the four telescopic tubes are fixedly connected to the limit ring, and the front sides of the four telescopic rods are provided with a circular hole;

[0028] By providing four telescopic tubes, more air can enter the inner cavity of the multi-stage telescopic tube 12, which can cause the multi-stage telescopic tube 12 to extend, thereby driving the support rod 13 to extend out of the connection body 1. Furthermore, by providing a limiting ring, a single telescopic tube can be prevented from falling out of the inner cavity of the multi-stage telescopic tube 12 by the limiting ring, thereby improving the stability of the multi-stage telescopic tube 12 during extension and contraction.

[0029] The shielding curtain 16 is connected to the coil spring shaft in the inner cavity of the coil spring storage cylinder 15, and the mounting rod 14 is fixedly connected to the shielding curtain 16;

[0030] The shielding curtain 16 is connected to the spring shaft in the inner cavity of the spring storage tube 15, so that when resetting, the shielding curtain 16 can be driven to retract into the inner cavity of the spring storage tube 15 through the spring shaft in the inner cavity of the spring storage tube 15, and when the multi-stage telescopic tube 12 is reset and retracted, the multi-stage telescopic tube 12 can be driven to retract through the spring in the inner cavity of the spring storage tube 15.

[0031] Among them, the rear side of the multi-stage telescopic tube 12 is fixedly connected with a control valve 19, and the one-way air outlet pipe 10 is connected to the inner cavity of the multi-stage telescopic tube 12;

[0032] Through the control valve 19 on the rear side of the multi-stage telescopic tube 12, when the wing 3 needs to be deployed, the control valve 19 is opened, so that the air in the inner cavity of the multi-stage telescopic tube 12 is discharged along the control valve 19, and then the support rod 13 is driven to return to its original position through the coil spring storage tube 15, and the support rod 13 drives the multi-stage telescopic tube 12 to retract as a whole.

[0033] The inner cavity of the wing 3 is fixedly connected to a motor 4, and the output shaft of the motor 4 is fixedly sleeved with a propeller 5;

[0034] The motor 4 drives the propeller 5 to flip over, so that when the wing 3 is folded and stored, the propeller 5 can be flipped over so that the propeller 5 will not collide with the connection body 1.

[0035] The working principle and usage process of the utility model are as follows: the folding and unfolding mechanism 2 is started to drive the wing 3 to move in the direction of the connection body 1, and the motor 4 is started to drive the propeller 5 to flip, and then the wing 3 is made to fit with the connection body 1, and then the second cylinder 17 is started to drive the limit plate 18 to descend, so that the limit plate 18 is inserted into the inner cavity of the limit groove 11 to fix the wing 3;

[0036] After being fixed, the first cylinder 6 is started to drive the piston plate 7 to move back and forth in the inner cavity of the piston cylinder 8, so that when the piston plate 7 moves in the direction of the one-way air inlet pipe 9, the air in the inner cavity of the piston cylinder 8 is transported along the one-way air outlet pipe 10 to the inner cavity of the multi-stage telescopic tube 12, thereby extending the multi-stage telescopic tube 12. When the piston plate 7 moves in the direction of the first cylinder 6, external air is drawn into the inner cavity of the piston cylinder 8 through the one-way air inlet pipe 9, thereby replenishing the air in the inner cavity of the piston cylinder 8;

[0037] After the air is squeezed from the inner cavity of the piston cylinder 8 into the inner cavity of the multi-stage telescopic tube 12 many times, the support rod 13 is driven to move, and the support rod 13 drives the installation rod 14 to move toward the outside of the connecting body 1, and then the shielding curtain 16 is pulled out from the inner cavity of the coil spring storage cylinder 15 through the installation rod 14, so that the shielding curtain 16 is extended to block the top of the propeller 5, thereby protecting the propeller 5.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wing folding mechanism suitable for a vertical take-off and landing aircraft, comprising a connecting body (1), characterized in that: The inner cavity of the connecting body (1) is fixedly connected to a first cylinder (6), the output shaft of the first cylinder (6) is fixedly sleeved with a piston plate (7), the inner cavity of the connecting body (1) is fixedly connected to a piston cylinder (8), the right side of the piston cylinder (8) is fixedly connected to a one-way air inlet pipe (9), the right side of the piston cylinder (8) is fixedly connected to a one-way air outlet pipe (10), the front side of the one-way air outlet pipe (10) is fixedly connected to a multi-stage telescopic tube (12), the inner cavity of the multi-stage telescopic tube (12) is movably sleeved with a support rod (13), the front side of the support rod (13) is fixedly connected to a mounting rod (14), the inner cavity of the connecting body (1) is fixedly connected to a coil spring storage cylinder (15), and the inner cavity of the coil spring storage cylinder (15) is provided with a shielding curtain (16).

2. The wing folding mechanism for a vertical take-off and landing aircraft according to claim 1, characterized in that: The front side of the connecting body (1) is fixedly connected to a folding and unfolding mechanism (2), the rotating shaft of the folding and unfolding mechanism (2) is fixedly connected to a wing (3), the top of the wing (3) is provided with a limiting groove (11), the front side of the connecting body (1) is fixedly connected to a second cylinder (17), and the output shaft of the second cylinder (17) is fixedly connected to a limiting plug plate (18).

3. The wing folding mechanism for a vertical take-off and landing aircraft according to claim 1, characterized in that: A one-way air outlet valve is fixedly connected to the connection between the one-way air outlet pipe (10) and the piston cylinder (8), and a one-way air inlet valve is fixedly connected to the connection between the one-way air inlet pipe (9) and the piston cylinder (8).

4. The wing folding mechanism for a vertical take-off and landing aircraft according to claim 1, characterized in that: The multi-stage telescopic tube (12) consists of four telescopic tubes, the rear sides of the four telescopic tubes are fixedly connected to a limiting ring, and the front sides of the four telescopic tubes are provided with a circular hole.

5. The wing folding mechanism for a vertical take-off and landing aircraft according to claim 1, characterized in that: The shielding curtain (16) is connected to the coil spring shaft in the inner cavity of the coil spring storage cylinder (15), and the mounting rod (14) is fixedly connected to the shielding curtain (16).

6. The wing folding mechanism for a vertical take-off and landing aircraft according to claim 2, characterized in that: A control valve (19) is fixedly connected to the rear side of the multi-stage telescopic tube (12), and the one-way air outlet pipe (10) is in communication with the inner cavity of the multi-stage telescopic tube (12).

7. The wing folding mechanism for a vertical take-off and landing aircraft according to claim 2, characterized in that: The inner cavity of the wing (3) is fixedly connected to a motor (4), and the output shaft of the motor (4) is fixedly sleeved with a propeller (5).

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