CN117779639B

CN117779639B - Lightweight helicopter deck

Info

Publication number: CN117779639B
Application number: CN202410203052.2A
Authority: CN
Inventors: 马小燕; 俞艳飞; 刘占东
Original assignee: Yantai North Sea Offshore Technology Co ltd
Current assignee: Yantai North Sea Offshore Technology Co ltd
Priority date: 2024-02-23
Filing date: 2024-02-23
Publication date: 2024-04-30
Anticipated expiration: 2044-02-23
Also published as: CN117779639A

Abstract

The invention relates to the technical field of helicopter decks, in particular to a lightweight helicopter deck which comprises a deck main body, wherein two side edges of the upper end of the deck main body are respectively and rotatably connected with a rocker, one ends corresponding to the two rocker are respectively arranged in a round angle, elastic components are arranged between the two rocker and the deck main body, the two elastic components are arranged in a dislocation manner, and ground grabbing mechanisms are arranged at the front and rear edges of two side walls of the deck main body. Meanwhile, impurities such as branches and leaves which fly in mountain areas are not easy to accumulate on the deck of the helicopter in a large quantity, the influence on the deck of the helicopter is small, and the impurities such as branches and leaves can be blown away faster and more effectively by means of downward strong wind power generated when the small helicopter lands, so that the small helicopter lands more smoothly.

Description

Lightweight helicopter deck

Technical Field

The invention relates to the technical field of helicopter decks, in particular to a lightweight helicopter deck.

Background

The helicopter deck is a platform specially used for taking off and landing a helicopter, is suitable for taking off and landing the helicopter, and ensures safe and effective flight operation. With the development of the age, the helicopter deck made of concrete or steel structures is gradually made of lightweight and high-strength materials, wherein aluminum is one of common choices, so that the load of a carrier can be reduced, and the load of transportation and installation and the like can be reduced.

The helicopter deck can be installed on a ship or a roof, and the installation environment of the helicopter deck depends on the task requirements of the helicopter. Meanwhile, the helicopter can land on a hard flat ground according to different task demands.

In some cases, a small helicopter may need to stay and use for a short period of time in a mountain area at a time point, such as scientific research, resource exploration or search and rescue, while a landing position of the small helicopter may be in a pit of the mountain area so as to perform related tasks more quickly and conveniently, and in order to enable the small helicopter to land smoothly, if a helicopter deck is selected to be installed at the landing position, the existing helicopter deck made of lightweight materials is usually composed of a plurality of components, so that the construction time is long, the construction difficulty of the pit area of the mountain area is relatively high, and the helicopter deck needs to be dismantled and taken away when the time point is evacuated later. Meanwhile, the branches and leaves which fly in mountain areas are more in impurities, a large amount of accumulation is easily formed on the deck of the helicopter for a long time, and smooth landing of the small helicopter is affected. To this end we propose a lightweight helicopter deck.

Disclosure of Invention

The invention aims to provide a lightweight helicopter deck, which solves the problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a lightweight helicopter deck, includes the deck main part, the upper end both sides edge of deck main part all rotates and is connected with the wane, two the corresponding one end of wane all is the fillet setting, and all is equipped with elastic component between two wanes and the deck main part, two be dislocation set between the elastic component, the both sides wall front and back portion edge of deck main part all is equipped with grabs ground mechanism;

The ground grabbing mechanism comprises an electric push rod, the electric push rod is fixedly mounted on the side wall of the deck main body through a connecting component, a cylindrical shell is fixedly connected to a telescopic shaft end of the electric push rod, a supporting disc is fixedly connected to the lower end of the cylindrical shell, a plug pin is fixedly connected to the middle of the lower end of the supporting disc, the inside of the plug pin is hollow, an anti-deflection mechanism is arranged in the plug pin, and a supporting mechanism is arranged between the supporting disc and the deck main body.

Preferably, the elastic component includes two splice bars and two square grooves, two splice bars symmetry rotation is connected in the lower extreme of wane, two the square groove is seted up respectively and is corresponding two splice bars departments in the upper end of deck main part, two the lower extreme of splice bar is all rotated and is connected with the slider, two the slider is all laminated in the inner wall of square frame, two the square frame all is located the below of deck main part, and equal fixedly connected with fixed block between the upper end of two square frames and the lower extreme of deck main part, and the equal fixedly connected with connecting rod of inner wall of two square frames, two the connecting rod is the activity respectively runs through in the inner wall of two sliders, and the equal sliding sleeve of outer wall of two connecting rods is equipped with spring two, two fixed connection of spring are between the lateral wall of slider and the medial surface of square frame.

Preferably, the connecting assembly comprises a connecting bracket, the connecting bracket is fixedly connected to the side wall of the deck main body, one end, away from the deck main body, of the connecting bracket is fixedly connected with a fixing ring, and the inner wall of the fixing ring is fixedly connected with the outer wall of the electric push rod.

Preferably, the anti-deflection mechanism comprises a bidirectional stud, two groups of inclined plugboards and two guide grooves, the bidirectional stud is rotationally connected to the inner bottom end of the plug pin, the bidirectional stud movably penetrates through the upper end of the supporting disc, a driving mechanism is arranged between the bidirectional stud and the supporting disc, the outer wall of the bidirectional stud is symmetrically sheathed with a cone, the two groups of plugboards vertically symmetrically slide and penetrate through the inner wall of the plug pin, one end of the two groups of plugboards positioned in the plug pin is respectively attached to conical surfaces of the two cones, the number of the plugboards is four, the outer wall of the plugboards is far away from the inner wall of the plug pin, the connecting blocks are fixedly connected with connecting columns, the four connecting columns movably penetrate through the outer wall of the plug pin, the outer walls of the four connecting columns are respectively sheathed with springs I, the springs I are respectively fixedly connected between the outer walls of the four connecting blocks and the inner wall of the plug pin, the two conical outer walls are respectively symmetrically fixedly connected with guide blocks, the two guide grooves are symmetrically arranged on the inner wall of the plug pin, and the two guide grooves are respectively matched with the two adjacent guide blocks in a sliding manner.

Preferably, the driving mechanism comprises a first gear and a fixing plate, the fixing plate is fixedly connected to the edge of the upper portion of the outer wall of the cylindrical shell, a motor is fixedly arranged on the inner wall of the fixing plate in a penetrating mode, a second gear is fixedly connected to the output shaft end of the motor, the first gear is rotationally connected to the top end of the bidirectional stud, the first gear is located on the inner side of the cylindrical shell, and the first gear and the second gear are meshed with each other.

Preferably, the outer wall of the plug pin is provided with a slot and a hole groove corresponding to the plug plate and the connecting column respectively, the plug plate is in sliding fit with the slot, and the connecting column is in sliding fit with the hole groove.

Preferably, the front end and the rear end of the deck main body are fixedly connected with shielding plates, the two shielding plates are respectively attached to the front end and the rear end of the two warping plates, and leather cloth is fixedly connected between the outer walls of the upper ends of the two warping plates, which are close to each other.

Preferably, the supporting mechanism comprises a splicing block and a T-shaped groove, the splicing block is fixedly connected to the outer wall of the supporting disc, the T-shaped groove is formed in the lower end of the deck main body, the T-shaped block is attached to the inner portion of the T-shaped groove in a sliding mode, and a supporting rod is connected between the lower end of the T-shaped block and the upper end of the splicing block in a rotating mode.

Compared with the prior art, the invention has the beneficial effects that:

1. Through mutually supporting of deck main part, wane, elastic component, electric putter, coupling assembling, cylindricality shell, supporting disk and plug pin, this helicopter deck structural design is simple and easy, and can realize stably settling and demolish the convenience in mountain region hole, can play labour saving and time saving's effect when building the helicopter deck and follow-up evacuation mountain region demolishs the helicopter deck on a time basis. Meanwhile, impurities such as branches and leaves which fly in mountain areas are not easy to accumulate on the deck of the helicopter in a large quantity, the influence on the deck of the helicopter is small, and the impurities such as branches and leaves can be blown away faster and more effectively by means of downward strong wind power generated when the small helicopter lands, so that the small helicopter lands more smoothly.

2. Through setting up the deviation preventing mechanism, the skew of this helicopter deck of restriction that can be fine improves the grabbing power of this helicopter deck greatly to further improve the stability of this helicopter deck.

3. Through setting up supporting mechanism, can improve the whole compressive resistance of this helicopter deck to further improve the stability of this helicopter deck, it is more stable when small-size helicopter descends.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a partial cross-sectional view of the plug pin of the present invention;

FIG. 3 is an enlarged schematic view of the structure A in FIG. 2 according to the present invention;

FIG. 4 is a bottom view of the present invention;

FIG. 5 is an enlarged schematic view of the structure of FIG. 4B according to the present invention;

FIG. 6 is a bottom partial cross-sectional view of the present invention;

fig. 7 is an enlarged schematic view of the structure of fig. 6 at C in accordance with the present invention.

In the drawings, the list of components represented by the various numbers is as follows: 1. a shielding plate; 2. a seesaw; 3. leather cloth; 4. a cylindrical shell; 5. an electric push rod; 6. a fixing ring; 7. a support plate; 8. a connecting bracket; 9. a fixing plate; 10. a motor; 11. a fixed block; 12. a first gear; 13. a two-way stud; 14. splicing blocks; 15. a second gear; 16. a guide groove; 17. a cone; 18. inserting plate; 19. inserting nails; 20. a hole groove; 21. a slot; 22. connecting columns; 23. a guide block; 24. a connecting block; 25. a first spring; 26. a T-shaped groove; 27. a deck body; 28. a support rod; 29. a block; 30. a square groove; 31. a T-shaped block; 32. a connecting rod; 33. a slide block; 34. a second spring; 35. splicing the connecting rods.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1-7, a lightweight helicopter deck in the drawings comprises a deck main body 27, wherein two side edges of the upper end of the deck main body 27 are respectively and rotatably connected with a rocker 2, corresponding ends of the two rockers 2 are respectively arranged in a round angle, elastic components are respectively arranged between the two rockers 2 and the deck main body 27, the two elastic components are arranged in a dislocation manner, and ground grabbing mechanisms are respectively arranged at the front and rear edges of two side walls of the deck main body 27;

The ground grabbing mechanism comprises an electric push rod 5, the electric push rod 5 is fixedly mounted on the side wall of a deck main body 27 through a connecting component, a telescopic shaft end of the electric push rod 5 is fixedly connected with a cylindrical shell 4, the lower end of the cylindrical shell 4 is fixedly connected with a supporting disc 7, the middle part of the lower end of the supporting disc 7 is fixedly connected with a dowel 19, the inside of the dowel 19 is hollow, an anti-deflection mechanism is arranged in the dowel 19, and a supporting mechanism is arranged between the supporting disc 7 and the deck main body 27.

The elastic component includes two splice bars 35 and two square grooves 30, two splice bars 35 symmetry rotate and connect the lower extreme at wane 2, two square grooves 30 are offered respectively and are corresponded two splice bars 35 departments in the upper end of deck main part 27, the lower extreme of two splice bars 35 all rotates and is connected with slider 33, two sliders 33 all laminate in the inner wall of square frame 29, two square frames 29 all are located the below of deck main part 27, and all fixedly connected with fixed block 11 between the upper end of two square frames 29 and the lower extreme of deck main part 27, and the inner wall of two square frames 29 all fixedly connected with connecting rod 32, two connecting rod 32 are movable throughout respectively in the inner wall of two sliders 33, and the outer wall of two connecting rod 32 all the slip cap is equipped with spring two 34, spring two 34 fixed connection is between the lateral wall of slider 33 and the medial surface of square frame 29.

The connecting component comprises a connecting bracket 8, the connecting bracket 8 is fixedly connected to the side wall of the deck main body 27, one end of the connecting bracket 8, which is far away from the deck main body 27, is fixedly connected with a fixing ring 6, and the inner wall of the fixing ring 6 is fixedly connected with the outer wall of the electric push rod 5; specifically, by providing the connection bracket 8 and the fixing ring 6, the electric push rod 5 is conveniently and firmly fixed on the side wall of the deck main body 27.

In this embodiment, the deck body 27 can be transported to the vicinity of the temporary base of the mountain area, and the four pins 19 can be inserted into the ground when the deck body 27 is lowered by the weight of the deck body 27, so as to ensure the stability of the deck body 27. If there is a depression unevenness on the ground, in order to ensure the level and stability of the deck main body 27, the electric push rod 5 corresponding to the depression on the ground is started, the electric push rod 5 can drive the corresponding cylindrical shell 4 and the supporting disc 7 to move downwards until the plug pins 19 corresponding to the depression on the ground are inserted into the depression, and the supporting disc 7 is stuck to the surface of the depression. According to the adjustability of the plug pins 19 and the support plate 7, the deck main body 27 can be stably placed in the pits of the mountain area, so that the landing of the small helicopter is facilitated. The helicopter deck has simple structural design, can be stably arranged and conveniently removed at the pits of mountain areas, and can achieve the effects of time and labor saving when the helicopter deck is built and is removed in the time of subsequent evacuation.

When the small helicopter falls on the deck main body 27, the high-speed rotation of the rotor wing of the small helicopter can generate strong downward wind force in the process of slowly falling down, under the action of strong wind, the two wanes 2 can be blown to rotate downwards until the corresponding ends of the two wanes 2 are combined together and the two wanes 2 can be attached to the upper end of the deck main body 27, the wanes 2 can drive the splicing rod 35 correspondingly connected in a rotating manner to rotate downwards at the inner side of the corresponding square groove 30 in the process of rotating downwards, the splicing rod 35 can drive the sliding block 33 correspondingly connected in a rotating manner to slide on the outer wall of the corresponding connecting rod 32, the sliding block 33 extrudes the spring II 34 connected between the square frame 29 until the landing gear of the small helicopter is parked on the two horizontal wanes 2, and at the moment, the two wanes 2 cannot be tilted to reset due to the elasticity of the spring II 34 under the weight of the small helicopter.

When the small helicopter takes off from the two wanes 2, the weight limit of the small helicopter is lost, under the action of the second spring 34, the two wanes 2 can be turned up and reset, and the two wanes 2 are in an inclined state, so that impurities such as branches and leaves in mountain areas are not easy to drift and accumulate on the deck main body 27, the cleanliness of the deck main body 27 is kept as much as possible, and the next smooth landing of the helicopter is avoided. Simultaneously, before the helicopter falls next time, the air current that the rotor rotated and produced also can be faster, more effective the impurity such as branch and leaf on the perk 2 surface of two perks, the landing is more smooth.

Example two

Referring to fig. 2, in this embodiment, for further explanation of the embodiment, the anti-deflection mechanism includes a bi-directional stud 13, two groups of inclined insertion plates 18 and two guide slots 16, the bi-directional stud 13 is rotatably connected to the inner bottom end of the insertion pin 19, the bi-directional stud 13 movably penetrates through the upper end of the support disc 7, a driving mechanism is disposed between the bi-directional stud 13 and the support disc 7, the outer wall of the bi-directional stud 13 is symmetrically threaded and sleeved with a cone 17, the two groups of insertion plates 18 vertically symmetrically slide and penetrate through the inner wall of the insertion pin 19, one end of each group of insertion plates 18 located inside the insertion pin 19 is respectively attached to the conical surfaces of the two cones 17, the number of each group of insertion plates 18 is four, the outer walls of the four insertion plates 18 are fixedly connected with connecting blocks 24 away from the inner wall of the insertion pin 19, the outer walls of the four connection blocks 24 are fixedly connected with connecting columns 22, the four connecting columns 22 movably penetrate through the outer walls of the insertion pin 19, the outer walls of the four connecting columns 22 are slidably sleeved with springs 25, the four springs 25 are respectively fixedly connected between the outer walls of the four connection blocks 24 and the inner walls of the insertion pin 19, one end of the two groups of insertion plates 18 are respectively attached to the inner walls of the two guide slots 23, and the two guide slots 16 are symmetrically connected to the two guide slots 16 are respectively.

The driving mechanism comprises a first gear 12 and a fixed plate 9, the fixed plate 9 is fixedly connected to the upper edge of the outer wall of the cylindrical shell 4, a motor 10 is fixedly arranged on the inner wall of the fixed plate 9 in a penetrating manner, a second gear 15 is fixedly connected to the output shaft end of the motor 10, the first gear 12 is rotatably connected to the top end of a bidirectional stud 13, the first gear 12 is positioned on the inner side of the cylindrical shell 4, and the first gear 12 and the second gear 15 are meshed with each other; specifically, when the motor 10 is started, the motor 10 drives the gear two 15 to rotate, the gear two 15 drives the gear one 12 to rotate, and the gear one 12 drives the bidirectional stud 13 to rotate.

The outer wall of the inserted pin 19 is respectively provided with a slot 21 and a hole slot 20 at the position corresponding to the inserting plate 18 and the connecting column 22, the inserting plate 18 is in sliding fit with the slot 21, and the connecting column 22 is in sliding fit with the hole slot 20; specifically, by providing the slot 21 and the hole 20, the insert plate 18 and the connecting post 22 are facilitated to slide in the inner wall of the insert pin 19.

In this embodiment, after the pins 19 are inserted into the ground, the driving mechanism drives the bi-directional studs 13 to rotate, the bi-directional studs 13 have threads with two different directions, and correspond to the two cones 17 respectively, so that the two cones 17 can move away from each other, each cone 17 can drive the corresponding guide block 23 connected to the corresponding guide block to slide in the corresponding guide groove 16 on the inner wall of the pin 19, the cone 17 located above can push the end of the four insert plates 18 located above and make the end of the four insert plates 18 slide out of the pins 19, the cone 17 located below can push the end of the four insert plates 18 located below and make the end of the four insert plates 18 slide out of the pins 19, each insert plate 18 can be inserted into the ground, and when each insert plate 18 slides out of the pin 19, the connecting post 22 connected through the connecting block 24 is driven to slide out of the pin 19, and the connecting block 24 can squeeze the spring one 25 connected between the inner walls of the pins 19.

Because the four plugboards 18 positioned above and the four plugboards 18 positioned below are symmetrically arranged, the directions of the four plugboards 18 positioned above and the four plugboards 18 positioned below are opposite, and after the plugboards are inserted into the ground, the movement of the plug pins 19 in the front-back, left-right directions in the ground can be further limited, so that the ground grabbing force of the deck main body 27 is greatly improved, and the stability of the deck main body 27 is further improved. Conversely, when the bidirectional stud 13 is driven to reversely rotate by the driving mechanism, under the action of the first spring 25, each insert plate 18 and each connecting post 22 are reset, and the end parts of each insert plate 18 and each connecting post 22 are flush with the outer wall of the plug pin 19.

Example III

Referring to fig. 1 and 7, in this embodiment, for further description of the embodiment, the front end and the rear end of the deck main body 27 are fixedly connected with shielding plates 1, the two shielding plates 1 are respectively attached to the front end and the rear end of two warped plates 2, and leather cloth 3 is fixedly connected between the outer walls of the upper ends of the two warped plates 2, which are close to each other.

In this embodiment, by providing the shielding plate 1, it is possible to prevent impurities drifting in a mountain area from being caught in the upper end of the deck main body 27 along the gap between the two seesaw 2 and the deck main body 27, so that the two seesaw 2 cannot be caught in the upper end of the deck main body 27.

By arranging the leather cloth 3, impurities drifting in mountain areas can be prevented from entering along a gap between the end parts of the two warped plates 2 and staying at the upper end of the deck main body 27, so that the two warped plates 2 cannot be normally combined at the upper end of the deck main body 27.

Example IV

Referring to fig. 4 and 5, for further description of the embodiment, the supporting mechanism includes a splicing block 14 and a T-shaped groove 26, the splicing block 14 is fixedly connected to the outer wall of the supporting plate 7, the T-shaped groove 26 is formed at the lower end of the deck main body 27, a T-shaped block 31 is slidingly attached to the inner portion of the T-shaped groove 26, and a supporting rod 28 is rotatably connected between the lower end of the T-shaped block 31 and the upper end of the splicing block 14.

In this embodiment, when the supporting disc 7 is driven to move downwards by the electric push rod 5, the supporting disc 7 can drive the supporting rod 28 to rotate through the splicing block 14, the supporting rod 28 can drive the T-shaped block 31 connected with the top end of the supporting rod to slide in the T-shaped groove 26 under the deck main body 27, the T-shaped block 31 slides towards the direction of the electric push rod 5, a triangle is formed among the supporting rod 28, the deck main body 27, the electric push rod 5 and the supporting disc 7, no matter how the height of the supporting disc 7 is adapted to the terrain adjustment, a triangle always exists between the supporting disc 7 and the deck main body 27, and according to the characteristic of the triangle, the overall compression resistance of the deck main body 27 can be improved, so that the stability of the deck main body 27 is further improved, and the small helicopter is more stable when descending.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A lightweight helicopter deck comprising a deck body (27), characterized in that: the two edges of the upper end of the deck main body (27) are respectively and rotatably connected with a rocker (2), one ends of the two corresponding rocker (2) are respectively arranged in a round angle, elastic components are respectively arranged between the two rocker (2) and the deck main body (27), the two elastic components are arranged in a dislocation manner, and the front edge and the rear edge of the two side walls of the deck main body (27) are respectively provided with a ground grabbing mechanism;

the ground grabbing mechanism comprises an electric push rod (5), the electric push rod (5) is fixedly arranged on the side wall of a deck main body (27) through a connecting component, a cylindrical shell (4) is fixedly connected to a telescopic shaft end of the electric push rod (5), a supporting disc (7) is fixedly connected to the lower end of the cylindrical shell (4), an inserting nail (19) is fixedly connected to the middle part of the lower end of the supporting disc (7), the inside of the inserting nail (19) is hollow, an anti-deflection mechanism is arranged in the inserting nail (19), and a supporting mechanism is arranged between the supporting disc (7) and the deck main body (27);

The elastic component comprises two splicing rods (35) and two square grooves (30), wherein the two splicing rods (35) are symmetrically and rotationally connected to the lower end of a rocker (2), the two square grooves (30) are respectively formed in the positions, corresponding to the two splicing rods (35), of the upper end of a deck main body (27), sliding blocks (33) are respectively and rotationally connected to the lower ends of the splicing rods (35), the two sliding blocks (33) are respectively and rotationally attached to the inner wall of a square frame (29), the two square frames (29) are respectively positioned below the deck main body (27), a fixed block (11) is fixedly connected between the upper ends of the two square frames (29) and the lower end of the deck main body (27), connecting rods (32) are respectively and rotationally connected to the inner walls of the two sliding blocks (33), springs (34) are respectively and slidingly sleeved on the outer walls of the two connecting rods (32), and the springs (34) are fixedly connected between the side walls of the sliding blocks (33) and the inner side walls of the square frames (29);

The deflection preventing mechanism comprises a bidirectional stud (13), two groups of inclined plugboards (18) and two guide grooves (16), the bidirectional stud (13) is rotationally connected to the inner bottom end of the plug pin (19), the bidirectional stud (13) movably penetrates through the upper end of the supporting disc (7), a driving mechanism is arranged between the bidirectional stud (13) and the supporting disc (7), conical bolts (17) are sleeved on the outer wall symmetrical threads of the bidirectional stud (13), two groups of plugboards (18) are symmetrically inserted in the inner wall of the plugboards (18) in a vertically sliding manner, one end of each group of plugboards (18) positioned inside the plug pin (19) is respectively attached to conical surfaces of the two conical bolts (17), the number of each group of plugboards (18) is four, the outer walls of the four plugboards (18) are far away from the inner wall of the plug pin (19) and fixedly connected with connecting blocks (24), the outer walls of the four connecting blocks (24) are fixedly connected with connecting columns (22), the outer walls of the four connecting columns (22) movably penetrate through the outer walls of the plug pin (19), one end of the two connecting blocks (25) are fixedly connected with the outer walls of the plug pin (19) respectively, the two guide grooves (16) are symmetrically formed in the inner wall of the plug pin (19), and the two guide grooves (16) are respectively in sliding fit with two adjacent guide blocks (23) at two positions.

2. A lightweight helicopter deck as claimed in claim 1 wherein: the connecting assembly comprises a connecting support (8), the connecting support (8) is fixedly connected to the side wall of the deck main body (27), one end, away from the deck main body (27), of the connecting support (8) is fixedly connected with a fixing ring (6), and the inner wall of the fixing ring (6) is fixedly connected with the outer wall of the electric push rod (5).

3. A lightweight helicopter deck as claimed in claim 1 wherein: the driving mechanism comprises a first gear (12) and a fixed plate (9), wherein the fixed plate (9) is fixedly connected to the edge of the upper part of the outer wall of the cylindrical shell (4), a motor (10) is fixedly arranged on the inner wall of the fixed plate (9) in a penetrating mode, a second gear (15) is fixedly connected to the output shaft end of the motor (10), the first gear (12) is rotatably connected to the top end of the bidirectional stud (13), the first gear (12) is located on the inner side of the cylindrical shell (4), and the first gear (12) and the second gear (15) are meshed with each other.

4. A lightweight helicopter deck as claimed in claim 1 wherein: the outer wall of the plug pin (19) is provided with a slot (21) and a hole groove (20) corresponding to the plug plate (18) and the connecting column (22), the plug plate (18) is in sliding fit with the slot (21), and the connecting column (22) is in sliding fit with the slot (21).

5. A lightweight helicopter deck as claimed in claim 1 wherein: the front end and the rear end of the deck main body (27) are fixedly connected with shielding plates (1), the two shielding plates (1) are respectively attached to the front end and the rear end of two warping plates (2), and leather cloth (3) is fixedly connected between the outer walls of the upper ends of the two warping plates (2) which are mutually close to each other.

6. A lightweight helicopter deck as claimed in claim 1 wherein: the supporting mechanism comprises a splicing block (14) and a T-shaped groove (26), the splicing block (14) is fixedly connected to the outer wall of the supporting disc (7), the T-shaped groove (26) is formed in the lower end of the deck main body (27), a T-shaped block (31) is attached to the inner portion of the T-shaped groove (26) in a sliding mode, and a supporting rod (28) is connected between the lower end of the T-shaped block (31) and the upper end of the splicing block (14) in a rotating mode.