Field disassembly and assembly type helicopter take-off and landing terrace
The detachable helicopter landing pad structure, using a wedge-shaped block and wedge-shaped groove connection design, solves the problem of existing pads being unable to be disassembled, enabling rapid laying and disassembly, reducing the cost of long-term helicopter field operations, and providing vehicle ramps for easy loading and unloading of materials.
Patent Information
- Application Number
- CN202520584985.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Existing helicopter landing pads cannot be disassembled after being built in the field, which requires helicopters to fly long distances or build multiple landing pads, increasing the cost of long-term field operations.
It adopts a detachable main board, male inclined plate and female inclined plate structure. Through the connection of wedge blocks and wedge grooves, and with the cooperation of limit posts and elastic blocks, the floor can be quickly laid and disassembled. Combined with the design of reinforcing ribs and drainage holes, the stability and drainage capacity of the floor are improved.
It enables the rapid setup and dismantling of helicopter landing pads at any location, reducing the cost of long-term field operations for helicopters, improving the efficiency of setup and dismantling, and providing convenient ramps for vehicles to facilitate loading and unloading of materials.
Smart Images
Figure CN223952164U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of helicopter landing pad, specifically is a field dismounting type helicopter landing pad. BACKGROUND
[0002] The helicopter landing pad provides a flat, solid and stable surface for the helicopter, ensuring that the helicopter can maintain balance during takeoff and landing, reducing the risk of takeoff and landing caused by uneven or unstable ground, and protecting the safety of passengers and crew members.
[0003] Because cement concrete has the characteristics of high strength, wear resistance, anti-skid and can bear the load of helicopter takeoff and landing, and the cost is relatively low, the service life is long, and the maintenance is simple, at present, the helicopter landing pad generally uses cement concrete as raw material to build, but the existing helicopter landing pad cannot be moved after being built in the field, and can only be lifted at a fixed point, which causes the helicopter to fly a longer distance, or multiple helicopter landing pads are built, which to some extent increases the cost of long-term field operation of the helicopter. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a field dismounting type helicopter landing pad, solving the problem that the existing helicopter landing pad cannot be dismounted, reducing the cost of long-term field operation of the helicopter, and improving the efficiency of laying the helicopter landing pad.
[0005] The utility model realizes the above-mentioned purpose through the following technical scheme:
[0006] A field dismounting type helicopter landing pad, comprising a plurality of main plates, male inclined plates and female inclined plates, one of the horizontal edges and vertical edges of the main plate and one side of the male inclined plate are respectively provided with wedge-shaped blocks, the other horizontal edge and vertical edge of the main plate and one side of the female inclined plate are respectively provided with wedge-shaped grooves, a limiting column is arranged in the wedge-shaped groove, a groove is arranged on the wedge-shaped block and connected with the limiting column in a sliding mode, an elastic block is arranged in the groove, a protrusion is arranged at the end of the elastic block, and a first inclined surface and an arc surface are arranged on the upper and lower sides of the protrusion and in contact with the limiting column.
[0007] Further, the bottom of the main plate, the male inclined plate and the female inclined plate is provided with a plurality of reinforcing ribs.
[0008] Further, the surface of the main plate, the male inclined plate and the female inclined plate is provided with a plurality of convex plates.
[0009] Further, a plurality of drainage holes are arranged on the main plate.
[0010] Further, the main plate is provided with a plurality of vertical slots, a plurality of connecting rods are slidably connected in the vertical slots, a first protrusion is arranged in the vertical slot, the end of the connecting rod is symmetrically slidably connected with a limiting block, the upper and lower sides of the limiting block are respectively provided with a plane and a second inclined surface in contact with the first protrusion of the adjacent main plate, and a first spring is arranged between the two adjacent limiting blocks.
[0011] Further, a second protrusion is arranged in the vertical slot, a third protrusion is arranged on the connecting rod, the upper side of the third protrusion is in contact with the first protrusion, and a second spring is arranged between the second protrusion and the third protrusion.
[0012] Further, the end of the connecting rod is slidably connected with a sliding block, the side of the sliding block is symmetrically provided with a fourth protrusion, the end of the limiting block is provided with a fifth protrusion, the side of the fourth protrusion is provided with a third inclined surface in contact with the fifth protrusion, and the other side of the sliding block extends to the outside of the connecting rod and is in contact with the connecting rod of the adjacent main plate.
[0013] Compared with the prior art, the beneficial effects of the utility model lie in:
[0014] 1, when the electric construction helicopter landing platform is needed, a plurality of main plates are first laid in parallel, the wedge-shaped blocks arranged on one of the horizontal edges and vertical edges of the main plate correspond to the wedge-shaped grooves arranged on the adjacent main plate, the wedge-shaped blocks on the adjacent main plate correspond to the wedge-shaped grooves arranged on the other horizontal plate and vertical plate of the main plate, and the main plate is pressed downward, so that the limiting column arranged on the wedge-shaped groove slides into the groove arranged on the wedge-shaped block, and the limiting column is in contact with the first inclined surface arranged on the upper side of the protrusion, the resulting component force drives the elastic block to deviate from the angle, until the limiting column passes through the protrusion, at this time, the limiting column is in contact with the wedge-shaped block and the arc surface, and the resulting resistance limits the sliding of the limiting column in the groove, so that the connection between the main plate and the adjacent main plate is realized, the above operation is repeated for several times, the main plates are laid on the ground and connected, and a helicopter landing platform is formed, thereby the helicopter landing platform can be built at any place without the need of manufacturing the main plate on site, the time for laying the helicopter landing platform is greatly shortened, the efficiency of laying the helicopter landing platform is improved, and the main plates can be randomly connected, so that the main plates can be assembled into any size according to the helicopter model and the site condition.
[0015] 2. When the ground needs to be dismantled, simply pry the main board upwards, causing the wedge-shaped post in the wedge groove of the main board to move upwards, so that the limiting post contacts the arc surface. When the applied force is sufficient to drive the elastic block to bend and deform, the resulting component force drives the elastic block to bend and deform until the limiting post slides out of the groove. Repeat the above steps multiple times to dismantle the helicopter landing pad, which facilitates the transportation of the ground to the required location, enabling helicopters to take off and land at any location. This eliminates the need to set up multiple helicopter landing pads and the need for helicopters to fly long distances, thereby reducing the cost of long-term field operations for helicopters.
[0016] 3. Place male and female inclined plates on the sides of the ground, so that the wedge-shaped blocks and wedge-shaped grooves on the male and female inclined plates correspond to the wedge-shaped grooves and wedge-shaped blocks on the corresponding main plates. In the same way, the male and female inclined plates are connected to the ground. The existence of the male and female inclined plates provides a ramp for vehicles to drive onto the helicopter landing pad, which facilitates vehicles to drive directly onto the helicopter landing pad and improves the efficiency of loading and unloading materials. Attached Figure Description
[0017] Appendix Figure 1 This is a schematic diagram of the structure of the motherboard of this utility model.
[0018] Appendix Figure 2 This is a schematic diagram of the structure of the mother inclined plate of this utility model.
[0019] Appendix Figure 3 This is a schematic diagram of the structure of the wedge block of this utility model.
[0020] Appendix Figure 4 This is a schematic diagram of the connecting rod of this utility model.
[0021] Appendix Figure 5 This is an appendix to the utility model Figure 4 A magnified view of part A in the middle.
[0022] The labels shown in the attached diagram:
[0023] 1. Main board; 2. Male inclined plate; 3. Female inclined plate; 4. Wedge block; 5. Wedge groove; 6. Limiting post; 7. Groove; 8. Elastic block; 9. Protrusion; 10. First inclined surface; 11. Arc surface; 12. Reinforcing rib; 13. Convex plate; 14. Drain hole; 15. Vertical groove; 16. Connecting rod; 17. First protrusion; 18. Limiting block; 19. Flat surface; 20. Second inclined surface; 21. First spring; 22. Second protrusion; 23. Third protrusion; 24. Second spring; 25. Slider; 26. Fourth protrusion; 27. Fifth protrusion; 28. Third inclined surface. Detailed Implementation
[0024] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.
[0025] This utility model provides a field-mounted, modular helicopter landing pad, such as... Figure 1 , Figure 2 and Figure 3 As shown, the system includes several main boards 1, male inclined plates 2, and female inclined plates 3. A wedge-shaped block 4 is provided on one horizontal and vertical side of the main board 1, and on one side of the male inclined plate 2. A wedge-shaped groove 5 is provided on the other horizontal and vertical side of the main board 1, and on one side of the female inclined plate 3. A limiting post 6 is provided within the wedge-shaped groove 5. A groove 7 is provided on the wedge-shaped block 4, which is slidably connected to the limiting post 6. An elastic block 8 is provided within the groove 7. A protrusion 9 is provided at the end of the elastic block 8. A first inclined surface 10 and an arc-shaped surface 11, respectively, are provided on the upper and lower sides of the protrusion 9, which contact the limiting post 6. When a helicopter landing pad is needed for power plant construction, several main boards 1 are laid out in parallel. The wedge-shaped block 4 on one horizontal and vertical side of the main board 1 corresponds to the wedge-shaped groove 5 on the adjacent main board 1. The wedge-shaped block 4 on the adjacent main board 1 corresponds to the wedge-shaped groove 5 on the other horizontal and vertical plate of that main board 1. By pressing down on the main board 1, the limiting post 6 on the wedge groove 5 slides into the groove 7 on the wedge block 4. The limiting post 6 contacts the first inclined surface 10 on the upper side of the protrusion 9, and the resulting force belt drives the elastic block 8 to deflect at an angle until the limiting post 6 passes the protrusion 9. At this time, the resistance generated after the limiting post 6 contacts the wedge block 4 and the arc surface will restrict the limiting post 6 from sliding in the groove 7, thereby realizing the connection between the main board 1 and the adjacent main board 1. Repeat the above action multiple times to lay and connect several main boards 1 on the ground and form a helicopter landing pad. Then, a helicopter landing pad can be built at any location without the need to manufacture the main board 1 on site, which greatly shortens the time of laying the helicopter landing pad and improves the efficiency of laying the helicopter landing pad. At the same time, since the main boards 1 can be spliced together at will, they can be assembled into any size according to the helicopter model and site conditions.
[0026] When the landing pad needs to be disassembled, the main plate 1 is only needed to be pulled up, the wedge-shaped column provided with the wedge-shaped groove 5 of the main plate 1 is moved upward, the limiting column 6 is in contact with the arc surface 11, when the applied force is sufficient to drive the elastic block 8 to bend and deform, the resulting component force drives the elastic block 8 to bend and deform, until the limiting column 6 slides out of the groove 7, the above steps are repeated for several times, so that the disassembly of the helicopter landing pad is realized, the landing pad is transported to the required position, the helicopter can take off and land at any position, a plurality of helicopter landing pads do not need to be arranged, and the helicopter does not need to fly a long distance, thereby reducing the cost of long-time field operation of the helicopter;
[0027] Finally, the male inclined plate 2 and the female inclined plate 3 are placed on the side of the landing pad, so that the wedge-shaped block 4 and the wedge-shaped groove 5 provided with the male inclined plate 2 and the female inclined plate 3 correspond to the wedge-shaped groove 5 and the wedge-shaped block 4 provided with the corresponding main plate 1, and the connection of the male inclined plate 2 and the female inclined plate 3 with the landing pad is realized, the existence of the male inclined plate 2 and the female inclined plate 3 provides a slope for the vehicle to drive on the helicopter landing pad, the vehicle can directly drive on the helicopter landing pad, and the efficiency of loading and unloading substances is improved.
[0028] Preferably, as shown in Figure 1 , Figure 2 and Figure 3 , the bottom of the main plate 1, the male inclined plate 2 and the female inclined plate 3 is provided with a plurality of reinforcing ribs 12, so as to increase the bearing capacity of the helicopter landing pad and ensure the safe take-off and landing of the helicopter.
[0029] Preferably, as shown in Figure 1 , Figure 2 and Figure 3 , the surface of the main plate 1, the male inclined plate 2 and the female inclined plate 3 is provided with a plurality of convex plates 13, so as to reduce the contact area between the helicopter or the vehicle and the main plate 1, the male inclined plate 2 and the female inclined plate 3, increase the friction between the helicopter or the vehicle and the main plate 1, the male inclined plate 2 and the female inclined plate 3, and achieve the effect of anti-skid.
[0030] Preferably, as shown in Figure 1 , Figure 2 and Figure 3 , a plurality of drainage holes 14 are provided on the main plate 1, so as to timely drain the rainwater on the surface of the helicopter landing pad, avoid the accumulation of rainwater on the surface of the helicopter landing pad, and improve the safety of the take-off and landing of the helicopter.
[0031] Preferably, as shown in Figure 4 and Figure 5As shown, the main plate 1 is provided with a plurality of vertical slots 15, a plurality of connecting rods 16 are slidably connected in the vertical slots 15, a first protrusion 17 is arranged in the vertical slot 15, the end of the connecting rod 16 is symmetrically slidably connected with a limiting block 18, the upper and lower sides of the limiting block 18 are respectively provided with a plane 19 and a second inclined surface 20 which are in contact with the first protrusion 17 of the adjacent main plate 1, a first spring 21 is arranged between two adjacent limiting blocks 18, before transporting the main plate 1, the main plates 1 are first stacked together, then a screwdriver or other tools is used to push the connecting rod 16 downward in the vertical slot 15, so that the connecting rod 16 moves downward in the vertical slot 15, until the inclined surface arranged on the lower side of the limiting block 18 is in contact with the first protrusion 17 on the adjacent main plate 1, the resulting component force drives the limiting block 18 to move inward, and the first spring 21 is compressed, so that the connecting rod 16 continues to slide in the vertical slot 15, until the limiting block 18 passes through the first protrusion 17 on the adjacent main plate 1, then under the action of the elastic force of the first spring 21, the two limiting blocks 18 slide to the two sides, and the plane 19 arranged on the upper side of the limiting block 18 is in contact with the first protrusion 17, the resulting resistance limits the upward movement of the connecting rod 16, so as to realize the connection between the main plates 1 in the transportation process, facilitate the subsequent transportation of the main plate 1 to the designated place, improve the efficiency of the helicopter in long-time field operation, in addition, the bottommost main plate 1 is not provided with a connecting rod 16, so as to avoid the interference between the connecting rod 16 and other objects in the transportation process, and affect the stability of the overall structure.
[0032] Preferably, as shown in Figure 4 and Figure 5 The second protrusion 22 is arranged in the vertical slot 15, the third protrusion 23 is arranged on the connecting rod 16, the upper side of the third protrusion 23 is in contact with the first protrusion 17, so as to avoid the sliding of the connecting rod 16 out of the main plate 1, the second spring 24 is arranged between the second protrusion 22 and the third protrusion 23, the elastic force generated after the compression of the second spring 24 drives the connecting rod 16 to move upward, so as to further limit the sliding of the connecting rod 16 in the vertical slot 15, improve the stability of the connection between the main plates 1 in the transportation process, facilitate the subsequent transportation of the main plate 1 to the designated place, and improve the efficiency of the helicopter in long-time field operation.
[0033] Preferably, as shown in Figure 4 and Figure 5As shown, the end of the connecting rod 16 is slidingly connected with a sliding block 25, one side of the sliding block 25 is symmetrically provided with a fourth protrusion 26, the end of the limiting block 18 is provided with a fifth protrusion 27, one side of the fourth protrusion 26 is provided with a third inclined surface 28 in contact with the fifth protrusion 27, the other side of the sliding block 25 extends to the outside of the connecting rod 16 and is in contact with the connecting rod 16 of the adjacent main plate 1, when the helicopter landing pad needs to be laid, first use a screwdriver to pass through the vertical slot 15 provided on the bottommost main plate 1, contact the sliding block 25 provided on the previous main plate 1 through the screwdriver, drive the sliding block 25 to slide on the connecting rod 16, contact the fourth protrusion 26 side through the third inclined surface 28 provided on the fourth protrusion 26 and the fifth protrusion 27, the resulting component force drives the limiting block 18 to move inward until the limiting block 18 is no longer in contact with the first protrusion 17, the restriction of the connecting block sliding in the vertical slot is released, then under the action of the second spring 24, drive the limiting block 18 to move upward until the third protrusion 23 provided on the limiting block 18 is in contact with the first protrusion 17, avoid the connecting rod 16 from sliding out of the vertical slot 15, thereby releasing the connection between the bottommost main plate 1 and the previous main plate 1, and the connecting rod 16 is in contact with the sliding block 25 provided on the previous connecting rod 16, so as to release the connection between the previous main plate 1 and the previous main plate 1, repeat the above steps, thereby quickly releasing the vertical connection between the main plate 1 and the main plate 1, facilitating subsequent laying of the helicopter landing pad, thereby improving the efficiency of laying the helicopter landing pad.
[0034] Embodiment 1
[0035] The utility model provides a kind of field dismountable helicopter landing pad, as shown in Figure 1 、 Figure 2 And Figure 3 As shown, when the helicopter landing pad needs to be laid, first parallelly lay several main plates 1, the wedge-shaped block 4 provided on one of the horizontal edge and vertical edge of main plate 1 is corresponded with the wedge-shaped slot 5 provided on the adjacent main plate 1, the wedge-shaped block 4 on adjacent main plate 1 is corresponded with the wedge-shaped slot 5 provided on the other horizontal plate and vertical plate of this main plate 1, and by pressing downward main plate 1, the limiting column 6 provided on wedge-shaped slot 5 slides into the groove 7 provided on wedge-shaped block 4, and by the first inclined surface 10 provided on the upper side of protrusion 9 being in contact with limiting column 6, the resulting component force drives elastic block 8 to deviate angle until limiting column 6 passes through protrusion 9, at this time, the resistance generated after limiting column 6 is in contact with wedge-shaped block 4 and cambered surface limits the sliding of limiting column 6 in groove 7, thereby realizing the connection between this main plate 1 and adjacent main plate 1, repeat the above action multiple times, lay several main plates 1 on the ground and form a helicopter landing pad, thereby building helicopter landing pad at any place, and without the need of manufacturing main plate 1 on site, greatly shorten the time of laying helicopter landing pad, improve the efficiency of laying helicopter landing pad, and simultaneously, since main plate 1 can be spliced at will, it can be spliced into any size according to helicopter model and site condition.
[0036] When the landing pad needs to be disassembled, only the main plate 1 needs to be pulled up, the wedge-shaped column provided with the wedge-shaped groove 5 of the main plate 1 is moved upward, so that the limiting column 6 is in contact with the arc surface 11, when the applied force is sufficient to drive the elastic block 8 to bend and deform, the resulting component force drives the elastic block 8 to bend and deform, until the limiting column 6 slides out of the groove 7, and the above steps are repeated several times, so as to realize the disassembly of the helicopter landing pad, facilitate the transportation of the landing pad to the required position, realize the take-off and landing of the helicopter at any position, without the need to set up multiple helicopter landing pads, and the helicopter does not need to fly a long distance, thereby reducing the cost of long-term field operation of the helicopter;
[0037] Finally, the male inclined plate 2 and the female inclined plate 3 are placed on the side of the landing pad, so that the wedge-shaped block 4 and the wedge-shaped groove 5 provided with the male inclined plate 2 and the female inclined plate 3 correspond to the wedge-shaped groove 5 and the wedge-shaped block 4 provided with the corresponding main plate 1, and the connection of the male inclined plate 2 and the female inclined plate 3 with the landing pad is realized in the same way. The existence of the male inclined plate 2 and the female inclined plate 3 provides a slope for the vehicle to drive onto the helicopter landing pad, which facilitates the vehicle to directly drive onto the helicopter landing pad and improves the efficiency of loading and unloading materials.
[0038] Example 2
[0039] On the basis of Example 1, as shown in Figure 1 , Figure 2 and Figure 3 , the bottom of the main plate 1, the male inclined plate 2 and the female inclined plate 3 is provided with a plurality of reinforcing ribs 12, thereby increasing the carrying capacity of the helicopter landing pad and ensuring the safe take-off and landing of the helicopter; the surface of the main plate 1, the male inclined plate 2 and the female inclined plate 3 is provided with a plurality of convex plates 13, which reduces the contact area between the helicopter or the vehicle and the main plate 1, the male inclined plate 2 and the female inclined plate 3, increases the friction between the helicopter or the vehicle and the male inclined plate 2 and the female inclined plate 3, and has the effect of preventing slipping, and at the same time, the main plate 1 is provided with a plurality of drainage holes 14, which can timely drain the rainwater on the surface of the helicopter landing pad, avoid the accumulation of rainwater on the surface of the helicopter landing pad, and improve the safety of the take-off and landing of the helicopter.
[0040] Example 3
[0041] On the basis of Example 1, as shown in Figure 4 and Figure 5As shown, before transporting the main plates 1, first stack the main plates 1 together, then use a screwdriver or other tools to push the connecting rods 16 downward in the vertical grooves 15, so that the connecting rods 16 move downward in the vertical grooves 15 until the inclined surface provided on the lower side of the limiting block 18 contacts the first protrusion 17 on the adjacent main plate 1, the resulting component force drives the limiting block 18 to move inward, compresses the first spring 21, and makes the connecting rod 16 continue to slide in the vertical groove 15 until the limiting block 18 passes through the first protrusion 17 on the adjacent main plate 1, then under the action of the elastic force of the first spring 21, the two limiting blocks 18 slide to the two sides, and the upper side of the limiting block 18 is provided with a flat surface 19 which contacts the first protrusion 17, the resulting resistance limits the upward movement of the connecting rod 16, thereby realizing the connection between the main plates 1 during transportation, facilitating the subsequent transportation of the main plates 1 to the designated location, improving the efficiency of the helicopter long-time field operation, in addition, the bottommost main plate 1 is not provided with a connecting rod 16, avoiding interference between the connecting rod 16 and other objects during transportation, affecting the stability of the overall structure;
[0042] When it is necessary to lay a helicopter landing pad, first use a screwdriver to pass through the vertical groove 15 provided on the bottommost main plate 1, contact the slider 25 provided on the previous main plate 1 with the screwdriver, drive the slider 25 to slide on the connecting rod 16, contact the fifth protrusion 27 with the third inclined surface 28 provided on one side of the fourth protrusion 26, the resulting component force drives the limiting block 18 to move inward, until the limiting block 18 is no longer in contact with the first protrusion 17, removing the restriction of the connecting block sliding in the vertical groove, then under the action of the elastic force of the second spring 24, drive the limiting block 18 to move upward until the third protrusion 23 provided on the limiting block 18 contacts the first protrusion 17, avoiding the connecting rod 16 from sliding out of the vertical groove 15, thereby removing the connection between the bottommost main plate 1 and the previous main plate 1, at the same time, the connecting rod 16 contacts the slider 25 provided on the previous connecting rod 16, thereby removing the connection between the previous main plate 1 and the previous previous main plate 1, repeating the above steps to quickly remove the vertical connection between the main plates 1, facilitating the subsequent laying of the helicopter landing pad, thereby improving the efficiency of laying the helicopter landing pad.
Claims
1. A field dismountable helipad, comprising a plurality of main panels (1), male bevels (2) and female bevels (3), characterized in that: One of the horizontal and vertical edges of the main plate (1) and one side of the male inclined plate (2) are respectively provided with wedge-shaped blocks (4), the other horizontal and vertical edges of the main plate (1) and one side of the female inclined plate (3) are respectively provided with wedge-shaped grooves (5), the wedge-shaped grooves (5) are provided with limiting columns (6), the wedge-shaped blocks (4) are provided with grooves (7) in sliding connection with the limiting columns (6), the grooves (7) are provided with elastic blocks (8), the end of the elastic block (8) is provided with a protrusion (9), the upper and lower sides of the protrusion (9) are respectively provided with a first inclined surface (10) and an arc surface (11) in contact with the limiting column (6).
2. The field collapsible helipad of claim 1, wherein: The bottom of the main plate (1), the male inclined plate (2) and the female inclined plate (3) are provided with a plurality of reinforcing ribs (12).
3. The field deployable and collapsible helipad of claim 1, wherein: The surface of the main plate (1), the male inclined plate (2) and the female inclined plate (3) are provided with a plurality of convex plates (13).
4. The field deployable and collapsible helipad of claim 1, wherein: The main plate (1) is provided with a plurality of drainage holes (14).
5. The field deployable and collapsible helipad of claim 1, wherein: The main plate (1) is provided with a plurality of vertical grooves (15), a plurality of connecting rods (16) are connected in sliding connection in the vertical grooves (15), the vertical grooves (15) are provided with first protrusions (17), the end of the connecting rod (16) is symmetrically connected in sliding connection with a limiting block (18), the upper and lower sides of the limiting block (18) are respectively provided with a flat surface (19) and a second inclined surface (20) in contact with the first protrusion (17) of the adjacent main plate (1), a first spring (21) is arranged between two adjacent limiting blocks (18).
6. A field deployable collapsible helipad according to claim 5, wherein: The vertical groove (15) is provided with a second protrusion (22), the connecting rod (16) is provided with a third protrusion (23), the upper side of the third protrusion (23) is in contact with the first protrusion (17), and the second protrusion (22) and the third protrusion (23) are provided with a second spring (24).
7. A field deployable collapsible helipad according to claim 6, wherein: The end of the connecting rod (16) is connected in sliding connection with a sliding block (25), one side of the sliding block (25) is symmetrically provided with a fourth protrusion (26), the end of the limiting block (18) is provided with a fifth protrusion (27), one side of the fourth protrusion (26) is provided with a third inclined surface (28) in contact with the fifth protrusion (27), the other side of the sliding block (25) extends to the outside of the connecting rod (16) and is in contact with the connecting rod (16) of the adjacent main plate (1).