Hanging device for helicopter transportation

Abstract

The utility model relates to the field of helicopter transportation, in particular to a hanging device for helicopter transportation, which comprises a top plate, two sides of the bottom of the top plate are provided with first shells, the top of each first shell is fixedly connected with a second shell, two sides of the bottom of each first shell are provided with hooks, and the hooks are fixedly connected with the top of the top plate. A driving mechanism is fixedly connected to the front side of the bottom of the top plate, an electric telescopic rod is fixedly connected to an inner cavity of the second shell, and guide rods are fixedly connected to the two sides of an inner cavity of the first shell. Due to the symmetry of the two-way threaded rod, the driving mechanism has the two-way adjusting capacity, higher flexibility can be provided for the hanging device, the hanging device can adapt to hanging of objects with different lengths, and other parts do not need to be replaced or adjusted; annular rings or other connecting points on a hung object are fixed by adjusting the position of the hook, the universality and adaptability of the hanging device are improved, and the hanging device is not prone to falling off.

Description

Technical Field

[0001] The utility model belongs to the technical field of helicopter transportation, and particularly relates to a hanging device for helicopter transportation. Background Art

[0002] A helicopter hanging device, usually called a cargo hook, is a device specially designed for a helicopter to perform a hoisting task. It is installed on the belly of the helicopter or the support of the main reduction gearbox and can hang and transport various materials, such as equipment, goods, personnel, etc.

[0003] After retrieval, in the prior art, the Chinese patent publication number: CN211943754U, the authorization date: November 17, 2020, discloses a device for external hanging of helicopter cargo, including a load-bearing frame and suspension cables. The load-bearing frame is used to hang the cargo. At least two suspension cables are respectively arranged on both sides of the load-bearing frame. One end of each suspension cable is connected to the load-bearing frame, and the other end is used to be connected to the helicopter. The utility model disperses the load of the hanging cargo to four installation points of the helicopter through at least four suspension cables. Because the load action points of the hanging cargo are dispersed, the mechanical strength requirements for the installation points are reduced, overcoming the problem that the load action of the existing external hanging connection mechanical structure of the helicopter is too concentrated. Moreover, the selection of the installation points is relatively flexible and can be installed on the front and rear crossbeams of the skids or on both sides of the fuel tank hanger, which can meet the modification and addition of the external hanging function for the existing non-external hanging type transport helicopters.

[0004] However, this device still has the following defects: Although the problem of the overly concentrated load action of the existing external hanging connection mechanical structure of the helicopter is solved, the position of the hook cannot be adjusted. The fixed hook position means that the helicopter can only hang objects of specific sizes and shapes and cannot adapt to different sizes and shapes of hanging requirements, which limits the diversity and flexibility of the helicopter in hoisting operations and reduces its versatility. In hoisting operations, if the hook position cannot be adjusted, the pilot needs to more precisely control the position and attitude of the helicopter to ensure that the suspended object can be accurately hooked on the hook. The fixed hook position may cause unnecessary vibrations and shakes in the hoisting system during flight, thereby affecting the flight stability and safety of the helicopter. The inability to adjust the hook position means that when hanging objects of different sizes, it may be necessary to replace different hanging devices or perform additional adjustment work. Summary of the Utility Model

[0005] In view of the above problems, the utility model provides a hanging device for helicopter transportation, which includes a top plate. On both sides of the bottom of the top plate, there are first shells. The top of the first shell is fixedly connected with a second shell. On both sides of the bottom of the first shell, there are hooks. The front side of the bottom of the top plate is fixedly connected with a driving mechanism. Inside the second shell, there is a fixedly connected electric telescopic rod. On both sides of the inner cavity of the first shell, there are fixedly connected guide rods. The surface of the guide rod is slidably connected with a guide block. One side of the guide block is fixedly connected with a fixed block. The bottom of the fixed block penetrates to the bottom of the first shell and is fixedly connected with the hook. An adjusting mechanism is arranged inside the first shell.

[0006] Furthermore, the driving mechanism includes a motor arranged at the bottom of the top plate. The output end of the motor is drivingly connected with a bidirectional threaded rod. The surface of the bidirectional threaded rod is threadedly connected with two threaded blocks. The surface of the bidirectional threaded rod is sleeved with a first convex block. The top of the first convex block is fixedly connected with the top plate. One end of the bidirectional threaded rod is rotatably connected with a second convex block. The top of the second convex block is fixedly connected with the top plate.

[0007] Furthermore, the adjusting mechanism includes a long block arranged inside the first shell. The output end of the electric telescopic rod penetrates to the inner cavity of the first shell and is fixedly connected with the long block. The surface of the long block is slidably connected with two sleeve blocks. One side of the sleeve block is rotatably connected with a first connecting rod. One side of the first connecting rod is rotatably connected with the guide block. The other side of the sleeve block is rotatably connected with a second connecting rod. One side of the second connecting rod is rotatably connected with a third convex block. One side of the third convex block is fixedly connected with the first shell.

[0008] Furthermore, on both sides of the inner cavity of the first shell, there are chutes. The inner cavity of the chute is slidably connected with a slider. One side of the slider is fixedly connected with the long block.

[0009] Furthermore, one side of the hook is fixedly connected with a protective pad. The material of the protective pad is rubber.

[0010] Furthermore, the surface of the motor is sleeved with a mounting seat. The bottom of the mounting seat is threadedly connected with a bolt. The top plate and the motor are detachably connected through the bolt.

[0011] Furthermore, the rear side of the bottom of the top plate is fixedly connected with a support rod. The surface of the support rod is slidably connected with a limit block. The bottom of the limit block is fixedly connected with the first shell.

[0012] The beneficial effects of the utility model are:

[0013] 1. Due to the symmetry of the bidirectional threaded rod in this device, the driving mechanism has the ability of bidirectional adjustment, which provides greater flexibility for the hanging device. It can adapt to objects of different lengths for hanging without replacing or adjusting other components. Through the setting of the adjustment mechanism, the position of the hook is adjusted to fix the ring or other connection points on the hanging object, improving the versatility and adaptability of the hanging device and making it not easy to fall off.

[0014] 2. In this device, the cooperation of the chute and the slider plays a role in limiting the long block, improving the stability of the long block during movement. Through the setting of the protective pad, it plays a role in protecting the hanging object, making the hanging object not easy to be worn. Through the cooperation of the mounting seat and the bolt, it plays a role in fixing the motor and at the same time facilitates the user to disassemble and repair it.

[0015] Other features and advantages of the present utility model will be described in the subsequent description, and, in part, will become apparent from the description or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the structures pointed out in the description, the claims and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 Shows the main structure diagram according to an embodiment of the present utility model;

[0018] Figure 2 Shows the partial structural cross-section according to an embodiment of the present utility model Figure 1 ;

[0019] Figure 3 Shows the partial structural cross-section according to an embodiment of the present utility model Figure 2 .

[0020] In the figure: 1. Top plate; 2. First housing; 3. Second housing; 4. Hook; 5. Driving mechanism; 51. Motor; 52. Bi-directional threaded rod; 53. Threaded block; 54. First convex block; 55. Second convex block; 6. Electric telescopic rod; 7. Guide rod; 8. Guide block; 9. Fixed block; 10. Adjusting mechanism; 101. Long block; 102. Sleeve block; 103. First connecting rod; 104. Second connecting rod; 105. Third convex block; 11. Chute; 12. Slide block; 13. Protective pad; 14. Mounting seat; 15. Support rod; 16. Limiting block. Detailed implementation mode

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] The embodiment of the present utility model provides a hanging device for helicopter transportation, including a top plate 1. Exemplarily, as Figures 1 - 3 shown.

[0023] On both sides of the bottom of the top plate 1, there are first housings 2. The top of the first housing 2 is fixedly connected with a second housing 3. On both sides of the bottom of the first housing 2, there are hooks 4. The front side of the bottom of the top plate 1 is fixedly connected with a driving mechanism 5. An electric telescopic rod 6 is fixedly connected to the inner cavity of the second housing 3. Guide rods 7 are fixedly connected to both sides of the inner cavity of the first housing 2. A guide block 8 is slidably connected to the surface of the guide rod 7. One side of the guide block 8 is fixedly connected with a fixed block 9. The bottom of the fixed block 9 penetrates through the bottom of the first housing 2 and is fixedly connected with the hook 4. An adjusting mechanism 10 is arranged in the inner cavity of the first housing 2.

[0024] The driving mechanism 5 includes a motor 51 arranged at the bottom of the top plate 1, as Figures 1 - 3 shown.

[0025] The output end of the motor 51 is drivingly connected with a bi-directional threaded rod 52. Two threaded blocks 53 are threadedly connected to the surface of the bi-directional threaded rod 52. A first convex block 54 is sleeved on the surface of the bi-directional threaded rod 52. The top of the first convex block 54 is fixedly connected with the top plate 1. One end of the bi-directional threaded rod 52 is rotatably connected with a second convex block 55. The top of the second convex block 55 is fixedly connected with the top plate 1.

[0026] Specifically, due to the symmetry of the bidirectional threaded rod 52, when the motor 51 rotates, the two threaded blocks 53 can move in opposite directions simultaneously, which enables the driving mechanism 5 to have the ability of bidirectional adjustment. This bidirectional adjustment function provides greater flexibility for the hanging device, allowing it to adapt to objects of different lengths for hanging without the need to replace or adjust other components.

[0027] The adjusting mechanism 10 includes a long block 101 disposed in the inner cavity of the first housing 2, as Figures 1 - 3 shown.

[0028] The output end of the electric telescopic rod 6 penetrates into the inner cavity of the first housing 2 and is fixedly connected to the long block 101. Two sleeve blocks 102 are slidably connected to the surface of the long block 101. One side of the sleeve block 102 is rotatably connected to a first connecting rod 103. One side of the first connecting rod 103 is rotatably connected to the guiding block 8. The other side of the sleeve block 102 is rotatably connected to a second connecting rod 104. One side of the second connecting rod 104 is rotatably connected to a third convex block 105. One side of the third convex block 105 is fixedly connected to the first housing 2.

[0029] Specifically, through the setting of the adjusting mechanism 10, the function of moving the two hooks 4 is realized. When the two hooks 4 are in contact with each other, the hanging object can be fixed. By adjusting the positions of the hooks 4 to fix the annular rings or other connection points on the hanging object, the versatility and adaptability of the hanging device are improved, making it less likely to fall off.

[0030] Chutes 11 are provided on both sides of the inner cavity of the first housing 2, as Figures 1 - 3 shown.

[0031] Sliders 12 are slidably connected to the inner cavities of the chutes 11. One side of the slider 12 is fixedly connected to the long block 101. A protective pad 13 is fixedly connected to one side of the hook 4. The material of the protective pad 13 is rubber. A mounting seat 14 is sleeved on the surface of the motor 51. Bolts are threadedly connected to the bottom of the mounting seat 14. The top plate 1 and the motor 51 are detachably connected by bolts. A support rod 15 is fixedly connected to the rear side of the bottom of the top plate 1. A limiting block 16 is slidably connected to the surface of the support rod 15. The bottom of the limiting block 16 is fixedly connected to the first housing 2.

[0032] Specifically, through the combined use of the sliding groove 11 and the slider 12, the long block 101 is limited, improving the stability of the long block 101 during movement. Through the setting of the protective pad 13, the hanging object is protected, making it not easy for the hanging object to be worn. Through the combined use of the mounting seat 14 and the bolt, the motor 51 is fixed, and at the same time, it is convenient for the user to disassemble and repair it. Through the combined use of the support rod 15 and the limit block 16, the first housing 2 is supported, making the first housing 2 not easy to fall off.

[0033] A hanging device for helicopter transportation proposed by an embodiment of the present invention has the following working principle:

[0034] When the device is in use, when the motor 51 is started, its output end drives the bidirectional threaded rod 52 to rotate. Two threaded blocks 53 are threadedly connected to the bidirectional threaded rod 52. Due to the symmetry of the threads, when the bidirectional threaded rod 52 rotates, the two threaded blocks 53 will move relatively. The threaded block 53 drives the first housing 2 to move, so that the position of the hook 4 can be adjusted, enabling the hanging device to hang objects of different lengths.

[0035] Furthermore, when the electric telescopic rod 6 is started, the output end of the electric telescopic rod 6 drives the long block 101 to move in the inner cavity of the first housing 2. The long block 101 drives the two sleeve blocks 102 to move. When the sleeve blocks 102 move, they will drive the first connecting rod 103 and the second connecting rod 104 to perform an arc-shaped movement, and at the same time, the sleeve blocks 102 slide on the surface of the long block 101. When the first connecting rod 103 performs an arc-shaped movement, one end of it will drive the guide block 8 to move, so that the two guide blocks 8 move relatively. The guide block 8 drives the hook 4 to move through the fixed block 9, so that the loop on the hanging object can be fixed, and thus the hanging object can be fixed.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A suspension device for helicopter transportation, comprising a top plate (1), characterized in that: On both sides of the bottom of the top plate (1), first shells (2) are provided. A second shell (3) is fixedly connected to the top of the first shell (2). Hooks (4) are provided on both sides of the bottom of the first shell (2). A driving mechanism (5) is fixedly connected to the front side of the bottom of the top plate (1). An electric telescopic rod (6) is fixedly connected to the inner cavity of the second shell (3). Guide rods (7) are fixedly connected to both sides of the inner cavity of the first shell (2). Guide blocks (8) are slidably connected to the surfaces of the guide rods (7). A fixing block (9) is fixedly connected to one side of the guide block (8). The bottom of the fixing block (9) penetrates to the bottom of the first shell (2) and is fixedly connected to the hook (4). An adjusting mechanism (10) is arranged in the inner cavity of the first shell (2).

2. The suspension device for helicopter transportation according to claim 1, wherein: The driving mechanism (5) includes a motor (51) arranged at the bottom of the top plate (1). The output end of the motor (51) is drivingly connected to a bidirectional threaded rod (52). Two threaded blocks (53) are threadedly connected to the surface of the bidirectional threaded rod (52). A first convex block (54) is sleeved on the surface of the bidirectional threaded rod (52). The top of the first convex block (54) is fixedly connected to the top plate (1). One end of the bidirectional threaded rod (52) is rotatably connected to a second convex block (55). The top of the second convex block (55) is fixedly connected to the top plate (1).

3. The suspension device for helicopter transportation according to claim 1, characterized in that: The adjusting mechanism (10) includes a long block (101) arranged in the inner cavity of the first shell (2). The output end of the electric telescopic rod (6) penetrates to the inner cavity of the first shell (2) and is fixedly connected to the long block (101). Two sleeve blocks (102) are slidably connected to the surface of the long block (101). A first connecting rod (103) is rotatably connected to one side of the sleeve block (102). One side of the first connecting rod (103) is rotatably connected to the guide block (8). A second connecting rod (104) is rotatably connected to the other side of the sleeve block (102). One side of the second connecting rod (104) is rotatably connected to a third convex block (105). One side of the third convex block (105) is fixedly connected to the first shell (2).

4. The suspension device for helicopter transportation according to claim 3, characterized in that: Chutes (11) are opened on both sides of the inner cavity of the first shell (2). Sliders (12) are slidably connected to the inner cavities of the chutes (11). One side of the slider (12) is fixedly connected to the long block (101).

5. The suspension device for helicopter transportation according to claim 1, characterized in that: A protective pad (13) is fixedly connected to one side of the hook (4). The material of the protective pad (13) is rubber.

6. The suspension device for helicopter transportation according to claim 2, characterized in that: An installation seat (14) is sleeved on the surface of the motor (51). Bolts are threadedly connected to the bottom of the installation seat (14). The top plate (1) and the motor (51) are detachably connected by bolts.

7. A suspension device for helicopter transportation according to claim 1, characterized in that: A support rod (15) is fixedly connected to the rear side of the bottom of the top plate (1). A limit block (16) is slidably connected to the surface of the support rod (15). The bottom of the limit block (16) is fixedly connected to the first shell (2).

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