A land transport flatbed vehicle platform for light helicopters

Abstract

The utility model discloses a land transport flat truck platform for light helicopter, including the car seat, the car seat one end fixedly connected with the trailer frame, the both ends of car seat all embed fixedly connected with linear motor, linear motor drive end fixedly connected with the sliding block, two the side of mutual approach of sliding block is fixedly connected with the carrier seat together, carrier seat top corner department fixedly connected with the hydraulic rod, the hydraulic rod telescopic end bottom fixedly connected with the support wheel. The utility model discloses a positioning assembly that is composed of double-shaft motor, screw rod, plug rod and U type lock with jack, realizes the mechanization locking of the helicopter skid type undercarriage, and this design replaces the traditional complicated manual bandage operation, only needs to start motor to lock multiple U type locks through plug rod, and the fixing process is quick, efficient, and the locking force is consistent, and the fixing reliability is high, effectively avoids the problem of not firm fixing caused by human factors.

Description

Technical Field

[0001] This utility model relates to the field of aircraft-carrying flatbed truck technology, specifically a flatbed truck platform for light helicopters. Background Technology

[0002] During the transport of light helicopters, specialized land transport flatbed trucks are often used for transfer. In existing technology, a common method is to manually tie and secure the helicopter's skid landing gear to fixed points on the flatbed truck platform using numerous straps or ropes.

[0003] This method has the following obvious drawbacks: First, the binding process is cumbersome and time-consuming, and requires a high level of experience from the operator. The tightness of the binding is difficult to control precisely, which poses a safety hazard. Secondly, the straps are prone to wear and tear after long-term use, requiring frequent inspection and replacement; furthermore, the fixed position of the straps is relatively fixed, making it difficult to flexibly adapt to the differences in landing gear size and position of different aircraft models, resulting in poor versatility.

[0004] Therefore, we propose to design a land transport flatbed vehicle-mounted platform for light helicopters. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A land transport flatbed vehicle platform for a light helicopter includes a seat, a trailer frame fixedly connected to one end of the seat, linear motors embedded and fixedly connected to both ends of the seat, sliders fixedly connected to the drive ends of the linear motors, a carrier base fixedly connected to the side of the two sliders that are close to each other, a hydraulic rod fixedly connected to the top corner of the carrier base, a support wheel fixedly connected to the bottom of the telescopic end of the hydraulic rod, and a positioning component embedded inside the carrier base. The positioning component includes a dual-axis motor embedded and fixed at the center of the bottom of the carrier base. Both drive ends of the dual-axis motor are fixedly connected to lead screws. The outer wall of the lead screw is threaded with a mounting plate. The outer side of the mounting plate is fixedly connected to a plug rod. A U-shaped lock is provided through the top of the carrier base. The top of the carrier base has several positioning holes corresponding to the U-shaped lock. The side wall of the U-shaped lock is provided with a plug hole corresponding to the plug rod.

[0007] As a preferred embodiment of the land transport flatbed vehicle platform for light helicopters described in this utility model, the vehicle seat has sliding grooves at both ends, and a limit rod is fixedly connected to the inner wall of the sliding groove. The limit rod passes through the slider and is slidably connected to it. When the linear motor drives the slider to move, it can drive the vehicle seat to slide into and out of the vehicle seat along the direction of the limit rod, thereby adjusting the position of the vehicle seat.

[0008] As a preferred embodiment of the land transport flatbed platform for light helicopters described in this utility model, both the top of the vehicle seat and the bottom of the aircraft carrier seat are provided with wheel grooves corresponding to the support wheels. When the support wheels are lowered, they are in contact with the ground. One end of the aircraft carrier seat is located on the top of the vehicle seat, and the other end is supported by the support wheels, thus making the aircraft carrier seat horizontal and facilitating the transport of the light helicopter to the top of the aircraft carrier seat. When the aircraft carrier seat is moved back to the top of the vehicle seat, the support wheels need to be retracted. The hydraulic rod drives the support wheels to rise, with part of them retracting into the wheel groove in the aircraft carrier seat and the other part retracting into the wheel groove on the top of the vehicle seat.

[0009] As a preferred embodiment of the land transport flatbed platform for light helicopters described in this utility model, the platform is provided with ramps at both ends to facilitate the movement of the light helicopter onto the platform.

[0010] As a preferred embodiment of the land transport flatbed platform for light helicopters described in this utility model, an iron-containing steel plate is fixedly connected to the bottom of the carrier seat, and a magnet is fixedly connected to the bottom of the U-shaped lock. The bottom of the U-shaped lock and the iron-containing steel plate are magnetically attracted to each other, and the magnet is correspondingly attracted to the iron-containing steel plate, which facilitates the positioning of the U-shaped lock.

[0011] As a preferred embodiment of the land transport flatbed vehicle platform for light helicopters described in this utility model, the top of the U-lock is fixedly connected to a pull ring. The U-lock is used to lock onto the skid-type landing gear of the helicopter, and the pull ring can be used to easily pull the U-lock out from its top.

[0012] As a preferred embodiment of the land transport flatbed vehicle platform for light helicopters described in this utility model, the outer end of the insertion rod is fixedly connected to a conical head, and the end of the insertion hole is provided with an oblique opening corresponding to the conical head, so as to facilitate the insertion rod to be inserted into the insertion hole and to position the U-shaped lock used to fix the helicopter skid landing gear.

[0013] As a preferred embodiment of the land transport flatbed vehicle platform for light helicopters described in this utility model, the U-shaped inner wall of the U-lock is fixedly connected with a high-strength rubber layer, which is used to fit against the surface of the helicopter skid landing gear to prevent the landing gear from being scratched.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention achieves mechanized locking and fixing of helicopter skid landing gear through a positioning assembly consisting of a dual-axis motor, lead screw, insertion rod, and U-locks with insertion holes. This design replaces the traditional cumbersome manual strapping operation. Only the motor needs to be started to lock multiple U-locks simultaneously through the insertion rod. The fixing process is fast, efficient, and the locking force is consistent, resulting in high fixing reliability and effectively avoiding the problem of unstable fixing caused by human factors. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a perspective view of a land transport flatbed vehicle-mounted platform for a light helicopter according to the present invention. Figure 2 This is a schematic diagram illustrating the movement of the aircraft carrier seat in a land transport flatbed platform for a light helicopter, according to the present invention. Figure 3 This is a schematic diagram of the carrier seat structure of a land transport flatbed vehicle platform for a light helicopter according to the present invention. Figure 4 for Figure 3 Schematic diagram of the structure at point A; Figure 5 This is a schematic diagram of a U-shaped lock structure for a land transport flatbed aircraft platform for a light helicopter, according to the present invention.

[0016] Legend: 1. Car seat; 101. Slide groove; 102. Limiting rod; 2. Trailer frame; 3. Linear motor; 4. Slider; 5. Carrier base; 501. Ramp; 502. Iron-containing steel plate; 6. Hydraulic rod; 7. Support wheel; 8. Positioning assembly; 801. Dual-axis motor; 802. Lead screw; 803. Mounting plate; 804. Insert rod; 9. U-lock; 10. Positioning hole; 11. Pull ring; 12. Insertion hole; 13. High-strength rubber layer. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0018] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0019] Please see Figure 1-5 This utility model provides a land transport flatbed vehicle platform for light helicopters, including a seat 1, a trailer frame 2 fixedly connected to one end of the seat 1, linear motors 3 embedded and fixedly connected to both ends of the seat 1, sliders 4 fixedly connected to the drive end of the linear motors 3, and a carrier base 5 fixedly connected to the side of the two sliders 4 that are close to each other.

[0020] In this embodiment, ramps 501 are provided at both ends of the carrier 5 to facilitate the movement of a light helicopter onto the carrier 5.

[0021] Both ends of the seat 1 are provided with slide grooves 101. The inner wall of the slide groove 101 is fixedly connected with a limit rod 102. The limit rod 102 passes through the slider 4 and is slidably connected to it. When the linear motor 3 drives the slider 4 to move, it can drive the carrier seat 5 to slide into and out of the seat 1 along the direction of the limit rod 102, thereby adjusting the position of the carrier seat 5.

[0022] A hydraulic rod 6 is fixedly connected to the top corner of the carrier seat 5. A support wheel 7 is fixedly connected to the bottom of the telescopic end of the hydraulic rod 6. The top of the vehicle seat 1 and the bottom of the carrier seat 5 are both provided with wheel grooves corresponding to the support wheel 7. When the support wheel 7 is lowered, it contacts the ground. One end of the carrier seat 5 is located on the top of the vehicle seat 1, and the other end is supported by the support wheel 7, so that the carrier seat 5 is horizontal, which makes it easy for light helicopters to be transported to the top of the carrier seat 5. When the carrier seat 5 is moved back to the top of the vehicle seat 1, the support wheel 7 needs to be retracted. The hydraulic rod 6 drives the support wheel 7 to rise, part of which is put into the wheel groove in the carrier seat 5, and the other part is put into the wheel groove on the top of the vehicle seat 1.

[0023] The carrier base 5 has a positioning component 8 embedded inside.

[0024] The positioning component 8 includes a dual-axis motor 801 embedded and fixed at the center of the bottom of the carrier base 5. Both drive ends of the dual-axis motor 801 are fixedly connected to lead screws 802. The outer wall of the lead screws 802 is threadedly connected to a mounting plate 803. The outer side of the mounting plate 803 is fixedly connected to a plug rod 804. A U-shaped lock 9 is provided through the top of the carrier base 5. Several positioning holes 10 corresponding to the U-shaped lock 9 are opened on the top of the carrier base 5. The side wall of the U-shaped lock 9 is provided with a plug hole 12 corresponding to the plug rod 804.

[0025] The outer end of the insertion rod 804 is fixedly connected to a conical head, and the end of the insertion hole 12 is provided with a bevel corresponding to the conical head, so that the insertion rod 804 can be inserted into the insertion hole 12 to position the U-lock 9 used to fix the helicopter skid landing gear.

[0026] A steel plate 502 containing iron is fixedly connected to the bottom of the carrier base 5. A magnet is fixedly connected to the bottom of the U-lock 9. The bottom of the U-lock 9 and the steel plate 502 containing iron are attracted by magnetic force. The magnet is attracted to the steel plate 502 containing iron, which facilitates the positioning of the U-lock 9.

[0027] In this embodiment, a pull ring 11 is fixedly connected to the top of the U-lock 9. The U-lock 9 is used to lock onto the skid landing gear of the helicopter, and the U-lock 9 can be easily pulled out from its top by the pull ring 11.

[0028] In this embodiment, a high-strength rubber layer 13 is fixedly connected to the U-shaped inner wall of the U-lock 9. The high-strength rubber layer 13 is used to fit against the surface of the helicopter skid landing gear to prevent the landing gear from being scratched.

[0029] Working principle: First, connect the linear motor 3 and the dual-axis motor 801 to the power supply unit on the land transport flatbed truck, such as a battery or a power supply specifically prepared for the equipment, to provide power. Connect the hydraulic rod 6 to an external oil pump to provide a power source.

[0030] During installation, the two linear motors 3 are synchronized by external PLC programming. The linear motors 3 are started to drive the slider 4 to slide, which in turn drives the carrier seat 5 to slide to the outside on the top of the seat 1, making it easier for the helicopter to move and load. Although the carrier platform of the land transport flatbed is low, in order to improve the stability and strength of the carrier seat 5, two hydraulic rods 6 are still installed on the side of the carrier seat 5. The hydraulic rods 6 can drive the support wheels 7 to descend and contact the ground to support the carrier seat 5.

[0031] After the helicopter is loaded onto the top of the carrier seat 5, the U-lock 9 is inserted from the top of the skid landing gear and then further penetrates into the positioning hole 10, and is attracted to the iron-containing steel plate 502. At this time, the U-lock 9 is initially positioned.

[0032] Based on the length of the skid-type landing gear, after inserting an appropriate number of U-locks 9 into its top, start the dual-axis motor 801 to drive the lead screw 802 to rotate, which in turn drives several insertion rods 804 to be inserted into the insertion holes 12 of multiple U-locks 9 at the same time, locking the multiple U-locks 9, thereby firmly fixing the bottom landing gear of the helicopter to the top of the carrier seat 5.

[0033] Instead of binding the landing gear bottom with restraint straps one by one, the plug-in locking method is used for fixation, which not only has stronger stability, but also allows for the installation of multiple U-locks 9 at different positions according to the different positions and lengths of the landing gear. The plugging can be completed simultaneously using the plug rod 804, saving time and effort.

[0034] After the fixation is completed, the staff starts the linear motor 3 to drive the carrier base 5 to reset. When more than half of the carrier base 5 is returned to the seat 1, the hydraulic rod 6 is activated to retract the support wheel 7 for storage.

[0035] This invention significantly reduces the height difference and slope during helicopter loading and unloading by setting up a carrier seat 5 that can slide out of the vehicle seat 1 and lifting support wheels 7, which makes the helicopter move to the carrier platform or down from the platform more smoothly and effortlessly, greatly improving the convenience and safety of loading and unloading operations.

[0036] By opening multiple positioning holes 10 on the top of the carrier base 5, the U-lock 9 can be flexibly arranged according to the actual size and position of different helicopter landing gear models, making it highly versatile. The magnetic block at the bottom of the U-lock 9 and the attraction design of the iron-containing steel plate 502 inside the carrier base 5 can pre-position the U-lock 9, facilitating the precise insertion of the subsequent insertion rod 804.

[0037] A high-strength rubber layer 13 is provided on the U-shaped inner wall of the U-lock 9, which can effectively prevent metal parts from directly contacting the helicopter landing gear while providing a firm lock. This prevents scratches or wear on the landing gear surface during transportation and provides good protection for expensive helicopter parts.

[0038] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A land-based flatbed vehicle platform for light helicopters, comprising a seat (1), characterized in that, One end of the vehicle seat (1) is fixedly connected to a trailer frame (2). Both ends of the vehicle seat (1) are embedded and fixedly connected to linear motors (3). The driving end of the linear motors (3) is fixedly connected to a slider (4). The two sliders (4) are fixedly connected to a carrier base (5) on the side that is close to each other. A hydraulic rod (6) is fixedly connected to the top corner of the carrier base (5). A support wheel (7) is fixedly connected to the bottom of the telescopic end of the hydraulic rod (6). A positioning component (8) is embedded inside the carrier base (5). The positioning component (8) includes a dual-axis motor (801) embedded and fixed at the center of the bottom of the carrier base (5). Both drive ends of the dual-axis motor (801) are fixedly connected to lead screws (802). The outer wall of the lead screw (802) is threadedly connected to a mounting plate (803). The outer side of the mounting plate (803) is fixedly connected to a plug rod (804). A U-shaped lock (9) is provided through the top of the carrier base (5). Several positioning holes (10) corresponding to the U-shaped lock (9) are opened on the top of the carrier base (5). The side wall of the U-shaped lock (9) is provided with a plug hole (12) corresponding to the plug rod (804).

2. The land transport flatbed vehicle-mounted platform for a light helicopter according to claim 1, characterized in that, The seat (1) has a sliding groove (101) at both ends. A limit rod (102) is fixedly connected to the inner wall of the sliding groove (101). The limit rod (102) passes through the slider (4) and is slidably connected to it.

3. A land transport flatbed vehicle-mounted platform for light helicopters according to claim 1, characterized in that, The top of the vehicle seat (1) and the bottom of the carrier seat (5) are both provided with wheel grooves corresponding to the support wheels (7).

4. A land-based flatbed vehicle platform for light helicopters according to claim 1, characterized in that, Both ends of the carrier base (5) are provided with ramps (501).

5. A land transport flatbed vehicle-mounted platform for light helicopters according to claim 1, characterized in that, The bottom of the carrier base (5) is fixedly connected to a steel plate (502) containing iron, and the bottom of the U-lock (9) is fixedly connected to a magnet block. The bottom of the U-lock (9) and the steel plate (502) containing iron are attracted by magnetic force.

6. A land transport flatbed vehicle-mounted platform for a light helicopter according to claim 1, characterized in that, The top of the U-lock (9) is fixedly connected to a pull ring (11).

7. A land transport flatbed vehicle-mounted platform for a light helicopter according to claim 1, characterized in that, The outer end of the insertion rod (804) is fixedly connected to a conical head, and the end of the insertion hole (12) is provided with a bevel corresponding to the conical head.

8. A land transport flatbed vehicle-mounted platform for a light helicopter according to claim 1, characterized in that, The U-shaped inner wall of the U-lock (9) is fixedly connected with a high-strength rubber layer (13).

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