A lock mechanism for a vertical take-off and landing apron

Abstract

The utility model relates to the technical field of helicopter, and disclose a kind of vertical take-off and landing apron is used lock machine bolt mechanism, including lock machine bolt mounting seat, apron layer and building steel structure crossbeam, the bottom end fixed mounting of lock machine bolt mounting seat cavity has upper nut, the bottom fixed mounting of lock machine bolt mounting seat has lower nut.The vertical take-off and landing apron is used lock machine bolt mechanism, effectively the static electricity or lightning induction current of mechanism accumulation is guided into ground, avoid the risk that static electricity spark causes fire, equipment damage or lightning breakdown component, damage helicopter electrical system, satisfy apron electrical safety standard;Its five, give consideration to operation convenience and lock stability, two groups of fixed shaft sleeve provide stable two-point support for lock machine bolt body, ensure that lock machine bolt body can rotate flexibly around shaft sleeve, cooperate the empty slot on lock machine bolt cover plate, can conveniently realize the standing up of lock machine bolt body and clamping and cover plate fastening, operation efficient and lock state stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of helicopter technology, specifically to a locking bolt mechanism for a vertical take-off and landing helipad. Background Technology

[0002] With rapid economic development and the continuous improvement of people's living standards, helicopters are gradually being used more and more widely in people's daily lives, especially in medical rescue, highway rescue, high-rise fire fighting, national defense transportation, and air tourism. When helicopters land on the helipad, they need to be securely fixed to the helipad.

[0003] However, in actual operation, the inventors found that the following problems still exist: Under the existing technology, the pre-embedded parts of the helipad lock bolts use a single positioning plate, which is pre-embedded in the concrete surface layer of the helipad before the concrete is poured. After the concrete has been cured and reached the design strength, the lock bolts are fixed to the pre-embedded parts with bolts. The construction is difficult, the cycle is long, and it is difficult to communicate and coordinate with the building structure construction party.

[0004] Based on this, the present invention provides a locking bolt mechanism for a vertical take-off and landing apron. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a locking bolt mechanism for vertical take-off and landing aprons, solving the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a locking bolt mechanism for a vertical take-off and landing apron, comprising a locking bolt mounting base, an apron layer, and a building steel structure beam: An upper nut is fixedly installed at the bottom of the bolt mounting cavity, and a lower nut is fixedly installed at the bottom of the bolt mounting base. The internal threads of the lower nut and the upper nut are connected to a height adjustment bolt. The end of the height adjustment bolt is movably sleeved with a bolt structure base plate. The internal threads of the bolt structure base plate are connected to a high-strength bolt. The parking apron layer is internally fitted with a bolt mounting base; The interior of the building's steel structure beams is fitted with high-strength bolts.

[0007] Preferably, a connecting beam is fixedly installed inside the locking bolt mounting base, and a fastening bolt is threaded inside the connecting beam.

[0008] Preferably, the locking bolt mounting base has a through hole, which is vertically aligned with the holes of the lower and upper nuts, and the interior of the hole is fitted with the height adjustment bolt.

[0009] Preferably, a bolt cover plate is attached to the top of the bolt mounting base, and a fastening bolt is tightly attached to the top of the bolt cover plate.

[0010] Preferably, the bolt mounting base has two sets of fixed bushings fixedly installed inside, and the bolt body is movably connected inside the two sets of fixed bushings.

[0011] Preferably, the locking bolt mounting base is provided with a grounding round steel inside, and the other end of the grounding round steel is connected to the grounding grid.

[0012] Preferably, the bolt cover plate has a through slot, and the bolt body fits into the inside of the slot.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This vertical takeoff and landing (VTOL) helipad locking mechanism offers several advantages. First, it significantly optimizes construction and connection efficiency. By embedding the locking bolt mounting base into the helipad layer for lateral positioning, and using high-strength bolts to directly and rigidly connect the locking bolt's base plate to the building's steel structure beams, it eliminates the need for traditional single-positioning plate concrete pre-embedding and curing processes. This significantly reduces construction difficulty, shortens the construction cycle, and simplifies communication with the building structure construction team. Second, it significantly improves installation accuracy and adaptability. Utilizing a double-threaded positioning structure formed by upper and lower nuts, along with a guide hole on the locking bolt mounting base vertically aligned with the nut holes, rotating the height adjustment bolt moves the locking bolt's base plate up and down. This precisely compensates for dimensional deviations during the construction of the helipad layer or building steel structure beams, ensuring the locking bolt's final position meets design requirements. Third, it enhances fixing reliability and structural stability. The high-strength bolts directly transfer the mechanism's force to the main building structure, avoiding the risk of traditional pre-embedded parts peeling off from the concrete and ensuring stable helicopter mounting. First, it ensures safety. The connecting beams and fastening bolts inside the bolt mounting base work together to firmly fix the bolt cover to the top of the mounting base, ensuring the cover surface is flush with the helipad surface. This guarantees the flatness of the helipad surface, reducing safety hazards during helicopter takeoff and landing, and prevents the cover from loosening under airflow impact or foot traffic, maintaining good protective performance. Second, it comprehensively improves operational safety. The grounding round steel inside the bolt mounting base constructs a complete conductive path of "bolt mechanism - grounding round steel - grounding grid - earth," effectively conducting accumulated static electricity or lightning-induced current to the ground. This avoids the risk of fire caused by static sparks, equipment damage, or lightning strikes damaging components and the helicopter's electrical system, meeting helipad electrical safety standards. Third, it balances operational convenience and locking stability. Two sets of fixed bushings provide stable two-point support for the bolt body, ensuring the bolt body can rotate flexibly around the bushings. Combined with the slots on the bolt cover, it allows for easy upright locking of the bolt body and fastening of the cover, resulting in efficient operation and a stable and reliable locking state. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the device of this utility model.

[0015] In the picture: 1. Lock bolt mounting base; 101. Lock bolt cover plate; 102. Lock bolt structural base plate; 103. Fastening bolt; 104. Connecting beam; 105. Fixing bushing; 106. Lock bolt body; 107. High-strength bolt; 108. Height adjusting bolt; 109. Lower nut; 110. Upper nut; 2. Helipad level; 3. Steel structure beams in buildings; 4. Grounding round steel. Detailed Implementation

[0016] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Please see Figure 1 A locking bolt mechanism for a vertical take-off and landing apron includes a locking bolt mounting base 1, an apron layer 2, and a building steel structure beam 3. An upper nut 110 is fixedly installed at the bottom of the cavity of the bolt mounting base 1, and a lower nut 109 is fixedly installed at the bottom of the bolt mounting base 1. The lower nut 109 and the upper nut 110 are internally threaded with a height adjustment bolt 108. The end of the height adjustment bolt 108 is movably sleeved with a bolt structure base plate 102. The bolt structure base plate 102 is internally threaded with a high-strength bolt 107. A lock bolt mounting base 1 is embedded inside the apron level 2. The interior of the steel structure beam 3 is fitted with high-strength bolts 107.

[0018] Specifically, the upper nut 110 and the lower nut 109 form a double-threaded positioning structure. By rotating the height adjustment bolt 108, the bolt extension length is changed through thread transmission, thereby driving the bolt mounting base plate 102 to move up and down, achieving fine adjustment of the overall height of the bolt mounting seat 1. At the same time, the bolt mounting seat 1 is embedded in the parking apron layer 2 to form a lateral positioning, preventing the mechanism from shifting horizontally. After the bottom bolt mounting base plate 102 contacts the building steel structure beam 3, the bolt mounting base plate 102 is directly rigidly connected to the building steel structure beam 3 through the gap between the parking apron layer 2 and the building steel structure beam 3 using high-strength bolts 107, transferring the force of the bolt mechanism to the main building structure.

[0019] Unlike traditional single-positioning plate structures that rely on pre-embedded concrete for curing, this design reduces the complexity of communication with the building structure construction team, shortens the construction cycle, and lowers the construction difficulty. The height adjustment function can compensate for dimensional deviations during the construction of the helipad layer 2 or the steel structure beam 3, ensuring that the final position of the locking bolt body 106 meets the design requirements and improving installation accuracy. It is directly connected to the steel structure beam 3 via high-strength bolts 107, resulting in more direct force transmission and avoiding the risk of separation between traditional pre-embedded parts and concrete, thus improving the reliability of the locking bolt mechanism in fixing the helicopter.

[0020] The locking bolt mounting base 1 has a connecting beam 104 fixedly installed inside, and the connecting beam 104 has a fastening bolt 103 threadedly connected inside.

[0021] The locking bolt mounting base 1 has a through hole, which is vertically aligned with the holes of the lower nut 109 and the upper nut 110. The inside of the hole is in contact with the height adjustment bolt 108.

[0022] Specifically, the round hole serves as a guide channel for the height adjustment bolt 108, and it is aligned with the holes of the lower nut 109 and the upper nut 110 to ensure that the height adjustment bolt 108 can only move in the vertical direction and avoid radial displacement of the bolt; the close fit between the round hole and the bolt restricts the bolt's wobbling space and ensures the stability of the threaded transmission.

[0023] Among them, the top of the bolt mounting base 1 is fitted with a bolt cover plate 101, and the top of the bolt cover plate 101 is tightly fitted with a fastening bolt 103.

[0024] Specifically, the bolt cover 101 covers the top opening of the bolt mounting base 1 to form a closed protection; the fastening bolt 103 passes through the cover and, through the threaded engagement with the connecting beam 104, fixes the cover to the top of the mounting base, ensuring the tightness and sealing between the cover and the mounting base. The surface of the cover can be flush with the apron layer 2 to avoid the opening of the mounting base affecting the flatness of the ground during helicopter take-off and landing, reducing the safety hazards of take-off and landing. The fastening bolt 103 ensures that the cover does not loosen under the impact of helicopter airflow or personnel stepping on it, maintaining the protective effect.

[0025] The bolt mounting base 1 has two sets of fixed bushings 105 fixedly installed inside, and the bolt body 106 is movably connected inside the two sets of fixed bushings 105.

[0026] Specifically, two sets of fixed bushings 105 are symmetrically fixed inside the bolt mounting base 1, providing two-point support for the bolt body 106. The bolt body 106 passes through the bushing and can rotate around the bushing axis. The bolt cover plate 101 can be opened as needed to make the bolt body 106 stand up. The bolt body 106 is then engaged with the bolt body 106 through the slot in the bolt cover plate 101, and finally fastened by the fastening bolt 103 passing through the cover plate.

[0027] The locking bolt mounting base 1 is equipped with a grounding round steel 4 inside. The other end of the grounding round steel 4 is connected to the grounding grid. The grounding round steel 4 serves as a conductive medium. One end of the grounding round steel 4 is in contact with the metal components inside the locking bolt mounting base 1, such as the mounting base body and the locking bolt body 106, while the other end is connected to the building grounding grid, forming a conductive path of "locking bolt mechanism - grounding round steel - grounding grid - earth", which conducts the static electricity or lightning-induced current accumulated on the mechanism into the earth.

[0028] When the helicopter is parked, static electricity may be generated when the fuselage comes into contact with the locking bolt mechanism. The grounding round steel 4 conducts the static electricity away to prevent static sparks from causing fires or equipment damage. In the event of a lightning strike, the grounding round steel 4 quickly conducts the induced current to the ground to prevent the current from breaking down the mechanism components or damaging the helicopter's electrical system. This improves the safety of the helipad, meets the electrical safety standards for helicopter helipads, and ensures that the mechanism passes safety acceptance.

[0029] The bolt cover plate 101 has a through slot, and the bolt body 106 is fitted inside the slot.

[0030] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A locking bolt mechanism for a vertical takeoff and landing apron, characterized in that, Includes the bolt mounting base (1), the parking apron layer (2), and the building steel structure beam (3): The bottom end of the cavity of the bolt mounting base (1) is fixedly installed with an upper nut (110), and the bottom of the bolt mounting base (1) is fixedly installed with a lower nut (109). The lower nut (109) and the upper nut (110) are internally threaded with a height adjustment bolt (108). The end of the height adjustment bolt (108) is movably sleeved with a bolt structure base plate (102). The internal thread of the bolt structure base plate (102) is internally threaded with a high-strength bolt (107). The parking apron layer (2) is internally fitted with a bolt mounting base (1); The interior of the steel structure beam (3) is fitted with high-strength bolts (107).

2. The locking bolt mechanism for a vertical take-off and landing apron according to claim 1, characterized in that: The locking bolt mounting base (1) has a connecting beam (104) fixedly installed inside, and the connecting beam (104) has a fastening bolt (103) threadedly connected inside.

3. The locking bolt mechanism for a vertical take-off and landing apron according to claim 1, characterized in that: The locking bolt mounting base (1) has a through hole, which is vertically aligned with the holes of the lower nut (109) and the upper nut (110). The inside of the hole is in contact with the height adjustment bolt (108).

4. The locking bolt mechanism for a vertical take-off and landing apron according to claim 1, characterized in that: The top of the bolt mounting base (1) is fitted with a bolt cover plate (101), and the top of the bolt cover plate (101) is tightly fitted with a fastening bolt (103).

5. The locking bolt mechanism for a vertical take-off and landing apron according to claim 1, characterized in that: The bolt mounting base (1) has two sets of fixed bushings (105) fixedly installed inside, and the bolt body (106) is movably connected inside the two sets of fixed bushings (105).

6. The locking bolt mechanism for a vertical take-off and landing apron according to claim 1, characterized in that: The locking bolt mounting base (1) is provided with a grounding round steel (4) inside, and the other end of the grounding round steel (4) is connected to the grounding grid.

7. The locking bolt mechanism for a vertical take-off and landing apron according to claim 4, characterized in that: The bolt cover plate (101) has a through slot, and the bolt body (106) fits inside the slot.

Images