A device for fixing propeller blades parked on aircraft deck

Abstract

The present invention discloses a device for fixing propeller blades parked on the deck of an aircraft, which relates to the technical field of aviation equipment, and comprises a propeller blade fixing frame, a support rod assembly, a deck fixing seat and a mooring rope. The propeller blade fixing frame is used to cover the propeller blade wing tip, and the propeller blade fixing frame is connected to the upper end of the support rod assembly; the lower end of the support rod assembly is connected to the deck fixing seat, and the deck fixing seat is installed at the upper end of the deck mooring socket, one end of the mooring rope is fixed to the propeller blade fixing frame, and the other end of the mooring rope is fixed to the fuselage mooring point. The propeller blade wing tip position is covered by the propeller blade fixing frame so that the propeller blade does not swing up and down due to the influence of wind force, and the propeller rod length of the support rod assembly is adjusted so that the end of the propeller rod can be connected to the deck fixing seat fixed on the deck. After the support rod assembly is connected to the deck fixing seat, the mooring rope on the propeller blade fixing frame is tied to the fuselage mooring point to prevent the propeller blade fixing frame from falling out of the wing tip, thereby achieving a stable fixation of the propeller blade.

Description

Technical Field

[0001] The invention relates to the technical field of aviation equipment, and in particular to a device for fixing propeller blades parked on a deck of an aircraft. Background Art

[0002] More and more naval vessels and civilian ships are equipped with helicopters to perform different tasks. Since the ships are always in the ocean, there is no shelter at sea, and the strong wind and waves cause the ships to shake. The propeller blades of the aircraft parked on the ship will swing with the wind. Under the action of strong winds, the propeller blades will swing violently up and down, which can easily cause damage to the propeller blades and the main propeller hub. Summary of the invention

[0003] In order to solve the problems of the prior art, the present invention covers the blade wing tip position through the blade fixing frame so that the blade does not swing up and down under the influence of wind force, and adjusts the length of the support rod of the support rod assembly so that the end of the support rod can be connected to the deck fixing seat fixed on the deck. After the support rod assembly is connected to the deck fixing seat, the mooring rope on the blade fixing frame is tied to the mooring point of the fuselage to prevent the blade fixing frame from falling off from the wing tip, thereby achieving a stable fixation of the blade.

[0004] In order to achieve the above effects, the present invention specifically adopts the following technical solutions:

[0005] A device for fixing propeller blades for parking on the deck of an aircraft comprises a propeller blade fixing frame, a support rod assembly, a deck fixing seat and a mooring rope, wherein the propeller blade fixing frame is used to cover the wing tip of the propeller blade, and the propeller blade fixing frame is connected to the upper end of the support rod assembly; the lower end of the support rod assembly is connected to the deck fixing seat, and the deck fixing seat is installed at the upper end of a deck mooring socket, one end of the mooring rope is fixed to the propeller blade fixing frame, and the other end of the mooring rope is fixed to a fuselage mooring point.

[0006] A further solution is that the blade fixing frame includes a frame body, which is open at one end and has a slot for inserting the blade wing tip therein, a stainless steel frame is fixedly provided around the outer surface of the open end of the slot, rubber rollers are provided on both sides of the stainless steel frame, and a ball shaft is provided at the lower end of the frame body.

[0007] A further solution is that a spring is sleeved on the outer surface of the ball shaft, and the upper end of the spring is fixedly connected to the bottom surface of the frame.

[0008] A further solution is that the support rod assembly is mainly composed of a connecting joint, a fixed strut, an adjusting sleeve and an adjusting inner tube, the connecting joint is connected to the end of the ball shaft away from the frame, one end of the fixed strut is hinged to the connecting joint, the other end of the fixed strut is threadedly connected to the adjusting sleeve, and one end of the adjusting inner tube is inserted into the interior of the adjusting sleeve and fixedly connected through an adjusting handle.

[0009] A further solution is that the fixed support rod includes at least two sections of aluminum alloy tubes, and the two sections of the aluminum alloy tubes are connected by threads.

[0010] A further solution is that the support rod assembly is divided into multiple groups according to the height of the main blade tip from the deck plane.

[0011] A further solution is that the deck fixing seat comprises a fixing seat body, a connecting rod and a locking block, the lower end outer wall of the fixing seat body is provided with a notch groove, the upper end of the connecting rod extends to the outside of the fixing seat body and is connected to the adjusting inner tube, and the lower end of the connecting rod is connected to the fixing seat body by a ball joint;

[0012] A groove is provided on one side of the deck mooring socket, the lower end of the locking block extends into the notch groove, the locking block is provided with a locking tongue matched with the groove, and a pulling device for pulling the locking block is fixedly connected to the middle part of the upper end of the locking block;

[0013] A locking spring is arranged above one side of the locking block, one end of the locking spring is fixedly connected to the locking block, and the other end of the locking spring is fixedly connected to the inner top wall of the fixing seat body.

[0014] A further solution is that the pulling device includes a pull rod and a pull ring, the lower end of the pull rod is inserted into the interior of the fixed seat body and fixedly connected to the upper end of the locking block, the upper end of the pull rod passes through the upper end surface of the fixed seat body, the upper end of the pull rod is provided with a pull ring hole, the pull ring passes through the pull ring hole and is fixedly connected to the pull rod.

[0015] A further solution is that an upper pressing block and a lower pressing block are respectively arranged at the upper and lower parts of the fixing seat body, and the upper pressing block and the lower pressing block are respectively connected to the upper end surface and the lower end surface of the fixing seat body by screws.

[0016] A further solution is that an elastic layer is arranged on the inner side of the frame, the elastic layer is in close contact with the inner side of the frame, and the elastic layer is a rubber elastic layer.

[0017] Beneficial effects of the present invention:

[0018] The present invention covers the blade wing tip position through the blade fixing frame to prevent the blade from swinging up and down due to the influence of wind force, and adjusts the length of the support rod of the support rod assembly so that the end of the support rod can be connected to the deck fixing seat fixed on the deck. After the support rod assembly is connected to the deck fixing seat, the mooring rope on the blade fixing frame is tied to the fuselage mooring point to prevent the blade fixing frame from falling off from the wing tip, thereby achieving a stable fixation of the blade;

[0019] The blade fixing frame is connected to the support rod assembly through a ball shaft, which can provide a certain torsion angle and rotation angle for the support rod, and can be adjusted according to the position of the mooring socket on the deck during installation;

[0020] A spring is installed between the ball shaft and the blade fixing frame, so that there is a certain supporting force between the blade fixing frame and the ball shaft, and the blade fixing frame will not shake with the wind during installation and use, so as to facilitate the installation and use of the blade fixing frame;

[0021] By installing the deck fixing seat on the deck mooring socket, a reliable mooring point is provided for the blade fixing;

[0022] The lower end of the connecting rod is set to be spherical, so that the lower end of the connecting rod is connected to the fixing seat body by a ball joint, which can provide a certain deflection angle when the upper end of the connecting rod is connected to the supporting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a device for fixing propeller blades parked on the deck of an aircraft according to an embodiment of the present invention;

[0024] Figure 2 This is a front view of a blade fixing frame in an embodiment of the present invention;

[0025] Figure 3 for Figure 2 Stereoscopic image of

[0026] Figure 4 It is a structural schematic diagram of a support rod assembly in an embodiment of the present invention;

[0027] Figure 5 It is a front view of a deck fixing seat in an embodiment of the present invention;

[0028] Figure 6 for Figure 5 Stereoscopic image of

[0029] The attached drawings are marked as follows: 1-blade fixing frame; 11-frame; 12-slot; 13-stainless steel frame; 14-rubber roller; 15-ball shaft; 16-spring; 2-support rod assembly; 20-connecting joint; 21-fixed support rod; 22-adjusting sleeve; 23-adjusting inner tube; 24-adjusting handle; 3-deck fixing seat; 30-deck fixing seat body; 300-notch groove; 31-connecting rod; 32-locking block; 33-locking spring; 4-mooring rope; 5-deck mooring nest; 50-groove; 60-pull rod; 61-pull ring; 70-upper pressure block; 71-lower pressure block. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] like Figure 1 As shown, one embodiment of the present invention discloses a device for fixing blades parked on the deck of an aircraft, comprising a blade fixing frame 1, a support rod assembly 2, a deck fixing seat 3 and a mooring rope 4. The blade fixing frame 1 is used to cover the wing tip of the blade, and the blade fixing frame 1 is connected to the upper end of the support rod assembly 2; the lower end of the support rod assembly 2 is connected to the deck fixing seat 3, and the deck fixing seat 3 is installed at the upper end of the deck mooring socket 5, one end of the mooring rope 4 is fixed on the blade fixing frame 1, and the other end of the mooring rope 4 is fixed on the fuselage mooring point. The present invention covers the wing tip position of the blade by the blade fixing frame so that the blade does not swing up and down due to the influence of wind force, and adjusts the length of the support rod of the support rod assembly so that the end of the support rod can be connected to the deck fixing seat fixed on the deck. After the support rod assembly is connected to the deck fixing seat, the mooring rope on the blade fixing frame is tied to the fuselage mooring point to prevent the blade fixing frame from escaping from the wing tip, thereby achieving a stable fixation of the blade.

[0032] like Figure 2-3 As shown, in this embodiment, the blade fixing frame 1 includes a frame body 11, which is open at one end and has a slot 12 for inserting the blade wing tip. The outer surface of the open end of the slot 12 is fixedly surrounded by a stainless steel frame 13, and rubber rollers 14 are sleeved on both sides of the stainless steel frame 13. A ball shaft 15 is provided at the lower end of the frame body 11. The blade wing tip is inserted into the slot, and the stainless steel frame can fix the blade tip in strong wind conditions, and the blade fixing frame has sufficient rigidity to ensure that it will not deform. The taper of the rubber roller is the same as that of the blade, so that the fixing frame can be easily inserted. The rubber roller ensures that when the fixing frame is inserted into the blade tip, the blade tip will not be rubbed against the blade, thereby avoiding damage to the blade.

[0033] In this embodiment, a spring 16 is sleeved on the outer surface of the ball shaft 15, and the upper end of the spring 16 is fixedly connected to the bottom surface of the frame 11. A spring is installed between the ball shaft and the blade fixing frame, so that there is a certain supporting force between the blade fixing frame and the ball shaft, and the blade fixing frame will not shake with the wind during installation and use, so as to facilitate the installation and use of the blade fixing frame.

[0034] like Figure 4 As shown, in this embodiment, the support rod assembly 2 is mainly composed of a connecting joint 20, a fixed support rod 21, an adjusting sleeve 22 and an adjusting inner tube 23. The connecting joint 20 is connected to the end of the ball shaft 15 away from the frame 11, one end of the fixed support rod 21 is hinged to the connecting joint 20, and the other end of the fixed support rod 21 is threadedly connected to the adjusting sleeve 22. One end of the adjusting inner tube 23 is inserted into the interior of the adjusting sleeve 22 and is fixedly connected through the adjusting handle 24.

[0035] In this embodiment, the fixed support rod 21 includes at least two sections of aluminum alloy tubes, and the two sections of aluminum alloy tubes are connected by threads to achieve the adjustment of the length of the fixed support rod.

[0036] In this embodiment, the support rod assembly 2 is divided into multiple groups according to the height of the main blade wing tip from the deck plane. The height of the main blade from the deck varies greatly. In order to simplify the complexity of the equipment structure, reduce the weight of the equipment, and improve the efficiency of equipment installation and disassembly, the support rod assembly is divided into three states A, B, and C. The length of the support rod in group A is the shortest, which is suitable for when the support rod connection point is located directly above the mooring point, and the horizontal distance between the support rod connection point on the blade fixing frame and the mooring point is the smallest; the length of group C is the longest, which is suitable for when the support rod connection point is located in the middle of the surrounding mooring points, and the horizontal distance between the support rod connection point on the blade fixing frame and the mooring point is the largest.

[0037] like Figure 5-6 As shown, in the present embodiment, the deck fixing seat 3 comprises a fixing seat body 30, a connecting rod 31 and a locking block 32; a notch groove 300 is provided on the outer wall of the lower end of the fixing seat body 30; the upper end of the connecting rod 31 extends to the outside of the fixing seat body 30 and is connected to the adjusting inner tube 23; the lower end of the connecting rod 31 is connected to the fixing seat body 30 by a ball joint; a groove 50 is provided on one side of the deck mooring socket 5; the lower end of the locking block 32 extends into the notch groove 300; the locking block 32 is provided with a locking tongue matching the groove 50; a pulling device for pulling the locking block 32 is fixedly connected to the middle part of the upper end of the locking block 32; a locking spring 33 is provided on the upper side of one side of the locking block 32; one end of the locking spring 33 is fixedly connected to the locking block 32; the other end of the locking spring 33 is fixedly connected to the inner top wall of the fixing seat body 30. The pulling device includes a pull rod 60 and a pull ring 61. The lower end of the pull rod 60 is inserted into the interior of the fixing seat body 30 and fixedly connected to the upper end of the locking block 32. The upper end of the pull rod 60 passes through the upper end surface of the fixing seat body 30. The upper end of the pull rod 60 is provided with a pull ring hole. At the same time, the deck fixing seat body is installed on the upper end of the deck mooring socket. Then, by pulling the pull ring, the pull ring drives the pull rod and the locking block to move upward at the same time. The locking tongue of the locking block moves upward with the locking block. When the locking tongue moves to the groove edge of the deck mooring socket groove and slides into the groove, the pull ring is released. The locking block retracts downward under the action of the locking spring to achieve the locking of the locking block. The deck fixing seat body and the deck mooring socket are tightly connected to provide a reliable fixed connection point for the mooring equipment.

[0038] In this embodiment, an upper pressing block 70 and a lower pressing block 71 are respectively disposed on the upper and lower sides of the fixing seat body 30, and the upper pressing block 70 and the lower pressing block 71 are respectively connected to the upper end surface and the lower end surface of the fixing seat body 30 by screws, thereby enhancing the structural strength of the fixing seat body.

[0039] In this embodiment, an elastic layer is disposed inside the frame 11, the elastic layer is in close contact with the inner side of the frame, and the elastic layer is a rubber elastic layer, so as to ensure that the blades will not have hard contact with the frame during the swinging process.

[0040] Finally, it should be noted that the above only describes in detail the specific embodiments of the present invention. However, the present invention is not limited to the specific embodiments described above. Equivalent modifications and substitutions made by those skilled in the art to the present invention are also within the scope of the present invention. Therefore, equal changes and modifications made without departing from the spirit and scope of the present invention are all within the scope of the present invention.

Claims

1. A device for fixing propeller blades parked on the deck of an aircraft, characterized in that: It comprises a blade fixing frame (1), a support rod assembly (2), a deck fixing seat (3) and a mooring rope (4), wherein the blade fixing frame (1) is used to cover the blade wing tip, and the blade fixing frame (1) is connected to the upper end of the support rod assembly (2); the lower end of the support rod assembly (2) is connected to the deck fixing seat (3), and the deck fixing seat (3) is installed at the upper end of a deck mooring socket (5); one end of the mooring rope (4) is fixed to the blade fixing frame (1), and the other end of the mooring rope (4) is fixed to a mooring point on the fuselage; The blade fixing frame (1) comprises a frame body (11), the frame body (11) is open at one end and is provided with a slot (12) for inserting the blade wing tip, a stainless steel frame (13) is fixedly provided around the outer surface of the open end of the slot (12), rubber rollers (14) are sleeved on both sides of the stainless steel frame (13), and a ball shaft (15) is provided at the lower end of the frame body (11); The deck fixing seat (3) comprises a fixing seat body (30), a connecting rod (31) and a locking block (32); a notch groove (300) is provided on the outer wall of the lower end of the fixing seat body (30); the upper end of the connecting rod (31) extends to the outside of the fixing seat body (30) and is connected to the adjusting inner tube (23); the lower end of the connecting rod (31) is connected to the fixing seat body (30) by a ball joint; A groove (50) is provided on one side of the deck mooring socket (5), the lower end of the locking block (32) extends into the notch groove (300), the locking block (32) is provided with a locking tongue matched with the groove (50), and a pulling device for pulling the locking block (32) is fixedly connected to the middle part of the upper end of the locking block (32); A locking spring (33) is arranged above one side of the locking block (32), one end of the locking spring (33) is fixedly connected to the locking block (32), and the other end of the locking spring (33) is fixedly connected to the inner top wall of the fixing seat body (30); The pulling device comprises a pull rod (60) and a pull ring (61), the lower end of the pull rod (60) is inserted into the interior of the fixing seat body (30) and is fixedly connected to the upper end of the locking block (32), the upper end of the pull rod (60) passes through the upper end surface of the fixing seat body (30), and a pull ring hole is provided at the upper end of the pull rod (60), and the pull ring (61) passes through the pull ring hole and is fixedly connected to the pull rod (60).

2. The aircraft deck parking blade fixing device according to claim 1, characterized in that: The outer surface of the ball shaft (15) is sleeved with a spring (16), and the upper end of the spring (16) is fixedly connected to the bottom surface of the frame (11).

3. The aircraft deck parking blade fixing device according to claim 1, characterized in that: The support rod assembly (2) mainly consists of a connecting joint (20), a fixed support rod (21), an adjusting sleeve (22) and an adjusting inner tube (23); the connecting joint (20) is connected to one end of the ball shaft (15) away from the frame (11); one end of the fixed support rod (21) is hinged to the connecting joint (20); the other end of the fixed support rod (21) is threadedly connected to the adjusting sleeve (22); one end of the adjusting inner tube (23) is inserted into the interior of the adjusting sleeve (22) and is fixedly connected via an adjusting handle (24).

4. The aircraft deck parking blade fixing device according to claim 3, characterized in that: The fixed support rod (21) comprises at least two sections of aluminum alloy tubes, and the two sections of the aluminum alloy tubes are connected by threads.

5. The aircraft deck parking blade fixing device according to claim 3, characterized in that: The support rod assembly (2) is divided into multiple groups according to the height of the main blade tip from the deck plane.

6. The aircraft deck parking blade fixing device according to claim 1, characterized in that: An upper pressing block (70) and a lower pressing block (71) are respectively arranged at the upper and lower parts of the fixing seat body (30); the upper pressing block (70) and the lower pressing block (71) are respectively connected to the upper end surface and the lower end surface of the fixing seat body (30) by screws.

7. The aircraft deck parking blade fixing device according to claim 1, characterized in that: An elastic layer is arranged on the inner side of the frame (11), the elastic layer is in close contact with the inner side of the frame (11), and the elastic layer is a rubber elastic layer.

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