aircraft mooring bolts

Abstract

This utility model proposes an aircraft mooring bolt, including a fixing groove and a rain cover. The rain cover covers the fixing groove, and its lower end is inserted into the fixing groove and detachably and sealingly connected to it. A tethering ring is provided in the fixing groove, and the tethering ring is fixed to the upper surface of the fixing groove by a fixing block and rotates along the axial direction of the fixing groove. The inner surface of the fixing groove has multiple through holes for the lower end of a bolt to pass through. Its advantages are that the rain cover provides a seal, is easy to install and remove, protects the device, and prevents rainwater from entering and corroding it. It has a simple structure and is suitable for installation in different environments (such as concrete floors, ship decks, and transport aircraft cabins), exhibiting good versatility.

Description

Technical Field

[0001] This utility model belongs to the technical field of aircraft fixing devices, and specifically relates to an aircraft mooring bolt. Background Technology

[0002] Aircraft mooring bolts are devices used to secure helicopters to the ground, deck, or transport vehicle to counteract the effects of external forces such as wind, ground vibration, and vehicle swaying (such as ships and trucks). They also prevent helicopters from tipping over due to a shift in the center of gravity or excessive external forces during extreme weather (such as strong winds), maintenance operations (such as lifting and disassembling parts), or shipboard takeoffs and landings.

[0003] CN219428373U discloses a helicopter landing pad locking bolt, including an upper plate and a lower plate. An inner support plate assembly and a stainless steel curved rod are fitted between the lower plate and the upper plate. Drainage holes are provided on the inner wall of the bottom of the upper plate. Although there are drainage holes, rainwater can still enter between the upper and lower plates. With long-term use, the internal support plate and stainless steel rod are at risk of corrosion by rainwater. In addition, its structure is relatively complex and its shape is fixed. It needs to be embedded into the landing pad with a shape that matches its shape, resulting in poor versatility. Utility Model Content

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: an aircraft mooring bolt includes a fixing groove and a rain cover. The rain cover covers the fixing groove, and the lower end of the rain cover is inserted into the fixing groove and detachably and sealed to the fixing groove. A tethering ring is provided in the fixing groove. The tethering ring is fixed to the upper surface inside the fixing groove by a fixing block and rotates along the axial direction of the fixing groove. The inner surface of the fixing groove is provided with a plurality of through holes through which the lower end of a bolt can pass.

[0005] Both the fixing groove and the outer periphery of the rain cover are circular, and the outer diameter of the rain cover is greater than or equal to the outer diameter of the fixing groove.

[0006] The rain cover includes a covering part and a sealing part. The bottom of the covering part is connected to the sealing part, and the outer diameter of the covering part is larger than the outer diameter of the sealing part.

[0007] The sealing part is an elastic sealing ring, and the outer diameter of the sealing part is larger than the inner diameter of the fixing groove. The rain cover is sealed to the fixing groove through the sealing part.

[0008] The top of the cover is provided with a snap ring hole that can be clamped by snap ring pliers. The snap ring hole includes two blind holes with inner diameters that are adapted to snap ring pliers. There are multiple snap ring holes, which are distributed in a circumferential array along the top of the cover.

[0009] The tethering ring has a D-shaped ring structure, and the fixing block is sleeved on the straight end of the tethering ring and fixed on the upper surface of the fixing groove.

[0010] The number of through holes is four, and the four through holes are distributed in a circumferential array along the inside of the fixing groove.

[0011] The bolt is an internal hex bolt, and the thread length of the bolt is greater than 45mm.

[0012] The fixing groove, cover, bolts, and nuts are all made of 304 stainless steel.

[0013] The beneficial effects of the aircraft mooring bolts obtained through the above technical solution are:

[0014] It is equipped with a rain cover for sealing, and the rain cover is easy to install and remove, which can protect the device and prevent rainwater from entering and corroding it.

[0015] It has a simple structure and can be installed on different carriers (such as cement floors, ship decks, and transport aircraft cabins), making it highly versatile. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the aircraft mooring bolt described in this utility model;

[0017] Figure 2 This is an exploded view of the aircraft mooring bolt described in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the rainproof cover described in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the aircraft mooring bolt (with the rain cover removed) described in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the aircraft mooring bolt described in this utility model during use.

[0021] In the figure, 1 is the fixing groove; 2 is the rain cover; 3 is the rope ring; 4 is the fixing block; 5 is the bolt; 6 is the nut; 11 is the through hole; 21 is the covering part; 21a is the blind hole; and 22 is the sealing part. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Unless otherwise defined, the technical terms used in the following embodiments have the same meaning as commonly understood by those skilled in the art to which this utility model pertains.

[0024] The present invention will be further explained below with reference to the embodiments and accompanying drawings. It should be understood that the present invention is not limited to the specific embodiments described.

[0025] like Figure 1 , Figure 2 As shown, this utility model proposes an aircraft mooring bolt, including a fixing groove 1 and a rain cover 2. The rain cover 2 covers the fixing groove 1, and the lower end of the rain cover 2 is inserted into the fixing groove 1 and detachably and sealed to the fixing groove 1. A tether ring 3 is provided in the fixing groove 1. The tether ring 3 is fixed to the upper surface of the fixing groove 1 by the fixing block 4 and rotates along the axial direction of the fixing groove 1. The tether ring 3 is used to connect the aircraft rope and complete the fixation of the aircraft at the other end of the aircraft rope. When it is not necessary to fix the aircraft, the rain cover 2 is covered on the fixing groove 1 to complete the sealing of the fixing groove 1, which can effectively prevent rainwater from entering and corroding the inside of the fixing groove 1 and the tether ring 3. The inner surface of the fixing groove 1 is provided with multiple through holes 11 for the lower end of the bolt 5 to pass through. When in use, the bolt 5 passes through the upper surface of the fixing groove 1 and can be fixed by the nut 6 as needed, so that the bottom of the fixing groove 1 can be fixed in the required position.

[0026] Both the fixing groove 1 and the rain cover 2 have circular outer circumferences. The outer diameter of the rain cover 2 is greater than or equal to the outer diameter of the fixing groove 1, so that the rain cover 2 effectively covers the fixing groove 1 and prevents rainwater from entering.

[0027] like Figure 3 As shown, the rain cover 2 includes a covering part 21 and a sealing part 22. The bottom of the covering part 21 is connected to the sealing part 22, and the outer diameter of the covering part 21 is larger than the outer diameter of the sealing part 22.

[0028] The sealing part 22 is an elastic sealing ring. The outer diameter of the sealing part 22 is larger than the inner diameter of the fixing groove 1. The rain cover 2 is sealed to the fixing groove 1 through the sealing part 22. When the sealing part 22 enters the fixing groove 1, it is compressed and deformed before entering the fixing groove 1 and abutting against the inside of the fixing groove 1, thus completing the seal of the fixing groove 1. The sealing part 22 can be made of corrosion-resistant and tear-resistant materials such as hydrogenated nitrile rubber, which increases its service life while ensuring a seal.

[0029] The top of the cover 21 is provided with snap ring holes that can be clamped by snap ring pliers. Each snap ring hole includes two blind holes 21a with an inner diameter adapted to the snap ring pliers. There are multiple snap ring holes arranged in a circumferential array along the top of the cover 21. When inserting the sealing part 22 at the bottom of the rain cover 2 into the fixing groove 1, the rain cover 21 can be rotated to assist in the insertion of the sealing part 22. However, manual operation lacks a fulcrum and is prone to slippage. Snap ring pliers can be used to clamp the snap ring holes and tighten the rain cover 21.

[0030] The tethering ring 3 has a D-shaped ring structure, and the fixing block 4 is sleeved on the straight end of the tethering ring 3 and fixed on the upper surface of the fixing groove 1.

[0031] The number of through holes 11 is four, and the four through holes 11 are distributed in a circumferential array along the inside of the fixing groove 1, which can make the bottom of the fixing groove 1 fixed and stable.

[0032] The bolt 5 is an internal hex bolt with a thread length greater than 45mm, which can be used on carriers of different thicknesses (such as cement floors, ship decks, and transport aircraft cabins), increasing the stability after installation.

[0033] The fixing groove 1, the cover part 21, the bolt 5, and the nut 6 are all made of 304 stainless steel, which can effectively increase their corrosion resistance and service life.

[0034] like Figure 4-5 As shown, during installation, place the fixing slot 1 at the position to be fixed, and drill a hole at the lower end of the through hole 11 at the bottom connection position of the fixing slot 1. Pass the bolt 5 through the through hole 11 and the drilled hole in sequence, and fix the fixing slot 1 with the nut 6 as needed. The fixing slot 1 is then fixed at the position to be fixed.

[0035] Rotate the tether ring 3 to a horizontal position, then fasten the rain cover 2 onto the fixing groove 1, inserting its lower end into the fixing groove 1 to seal it, which can effectively prevent rainwater from entering the fixing groove 1.

[0036] When the aircraft needs to be secured, remove the rain cover 2, then rotate and lift the tether ring 3, and tie the aircraft rope to the tether ring 3.

[0037] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0039] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. An aircraft mooring bolt, comprising a fixing groove (1) and a rain cover (2), characterized in that, The rain cover (2) is attached to the top of the fixing groove (1), and the lower end of the rain cover (2) is inserted into the fixing groove (1) and detachably sealed to the fixing groove (1). A rope ring (3) is provided in the fixing groove (1). The rope ring (3) is fixed to the upper surface inside the fixing groove (1) by a fixing block (4) and rotates along the axial direction of the fixing groove (1). The inner surface of the fixing groove (1) is provided with a plurality of through holes (11) through which the lower end of the bolt (5) can pass.

2. The aircraft mooring bolt according to claim 1, characterized in that, The outer circumference of both the fixing groove (1) and the rain cover (2) is circular, and the outer diameter of the rain cover (2) is greater than or equal to the outer diameter of the fixing groove (1).

3. The aircraft mooring bolt according to claim 1, characterized in that, The rain cover (2) includes a covering part (21) and a sealing part (22). The bottom of the covering part (21) is connected to the sealing part (22), and the outer diameter of the covering part (21) is larger than the outer diameter of the sealing part (22).

4. The aircraft mooring bolt according to claim 3, characterized in that, The sealing part (22) is an elastic sealing ring. The outer diameter of the sealing part (22) is larger than the inner diameter of the fixing groove (1). The rain cover (2) is sealed to the fixing groove (1) through the sealing part (22).

5. The aircraft mooring bolt according to claim 4, characterized in that, The top of the cover (21) is provided with a snap ring hole that can be clamped by snap ring clamps. The snap ring hole includes two blind holes (21a) with inner diameters that are adapted to snap ring clamps. There are multiple snap ring holes, which are distributed in a circumferential array along the top of the cover (21).

6. The aircraft mooring bolt according to claim 1, characterized in that, The tethering ring (3) has a D-shaped ring structure, and the fixing block (4) is sleeved on the straight end of the tethering ring (3) and fixed on the upper surface of the fixing groove (1).

7. The aircraft mooring bolt according to claim 1, characterized in that, The number of through holes (11) is four, and the four through holes (11) are distributed in a circumferential array along the inside of the fixing groove (1).

8. The aircraft mooring bolt according to claim 1, characterized in that, The bolt (5) is an internal hex bolt, and the thread length of the bolt (5) is greater than 45mm.

9. The aircraft mooring bolt according to claim 3, characterized in that, The fixing groove (1), the cover part (21), the bolt (5), and the nut (6) are all made of 304 stainless steel.

Images