A belly belt system for maintenance operations of AS332C1 helicopter

Abstract

The present invention discloses a maintenance operation belt system for an AS332C1 helicopter, belonging to the technical field of power transmission line detection auxiliary equipment. In order to connect the AS332C1 helicopter to a hanging basket, the maintenance operation belt system for the AS332C1 helicopter comprises an in-cabin bracket (1), an out-cabin crossbeam (2) and an insulating rope (3). The in-cabin bracket (1) can be fixed in a cabin (71), two out-cabin crossbeams (2) are arranged at intervals on the left and right, the outer ends of the out-cabin crossbeams (2) are connected to pulleys (5), the insulating ropes (3) are passed around the pulleys (5), and the lower ends of the insulating ropes (3) can be connected and fixed to the hanging basket (8). The AS332C1 helicopter can be connected to the hanging basket through the maintenance operation belt system for the AS332C1 helicopter, which can not only ensure the safety of operators, but also ensure the convenience of installing the hanging basket and the flexibility of use.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission line detection auxiliary equipment, in particular to a maintenance operation belly belt system for an AS332C1 helicopter. Background Art

[0002] The AS332C1 is a multi-purpose helicopter. Its exceptional performance and wide adaptability have enabled it to be used worldwide for search and rescue, maritime transport, and offshore oil platform support missions. The AS332C1 requires a gondola for power transmission line inspections, but currently, this type of helicopter cannot be directly connected to a gondola. Summary of the Invention

[0003] In order to connect an AS332C1 helicopter with a hanging basket, the present invention provides a maintenance operation belly belt system for the AS332C1 helicopter. The AS332C1 helicopter can be connected to the hanging basket through the maintenance operation belly belt system for the AS332C1 helicopter, which can not only ensure the safety of operators, but also ensure the convenience of installing the hanging basket and the flexibility of use.

[0004] The technical solution adopted by the embodiment of the present invention to solve the technical problem is:

[0005] A maintenance operation belly belt system for an AS332C1 helicopter includes an in-cabin bracket, an out-cabin crossbeam, and an insulating rope. The in-cabin bracket can be fixed in the cabin of the helicopter body. Two out-cabin crossbeams are arranged at intervals on the left and right. The inner ends of the out-cabin crossbeams are connected to the in-cabin bracket, and the outer ends of the out-cabin crossbeams are connected to pulleys. The insulating ropes are passed around the pulleys, and the lower ends of the insulating ropes can be connected and fixed to a hanging basket.

[0006] The beneficial effects of the embodiments of the present invention are:

[0007] 1. The maintenance operation belt system is easy to load and unload on the AS332C1 helicopter.

[0008] 2. The explosive cap can drop the hanging basket in an emergency.

[0009] 3. Anti-torsion bar ensures stability during high-altitude operations.

[0010] 4. The belly belt system for maintenance operations can also be installed on other helicopters. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0012] Figure 1It is a three-dimensional schematic diagram of the belly belt system for maintenance operations of the AS332C1 helicopter according to the present invention.

[0013] Figure 2 yes Figure 1 Schematic diagram of the upper part.

[0014] Figure 3 yes Figure 2 An enlarged schematic diagram of the bracket area in the middle cabin.

[0015] Figure 4 The figure is a top view schematic diagram of the belly belt system for maintenance operations of the AS332C1 helicopter according to the present invention.

[0016] The following are the descriptions of the reference numerals:

[0017] 1. Cabin bracket; 2. Cabin beam; 3. Insulated rope; 4. Anti-twist bar; 5. Pulley; 6. Rope cutting device; 7. Helicopter body; 8. Basket;

[0018] 11. Support crossbeam; 12. Support rear longitudinal beam; 13. Support front longitudinal beam; 14. Connector; 15. Rear connecting rod; 16. Front connecting rod; 17. Rotating shaft; 18. Locking component;

[0019] 21. Left outer crossbeam; 22. Right outer crossbeam;

[0020] 31. Left rope; 32. Right rope;

[0021] 41. Upper connecting rod; 42. Lower connecting rod; 43. First quick-release joint; 44. Second quick-release joint;

[0022] 71. Engine room; 72. Lock seat;

[0023] 311, upper left rope segment; 312, lower left rope segment;

[0024] 321. Upper right rope segment; 322. Lower right rope segment. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] For ease of understanding and description, the following description of the present invention adopts an absolute position relationship. Unless otherwise specified, the directional word "upper" means perpendicular to Figure 4 The direction of the paper and points to the outside of the paper. The directional word "down" means perpendicular to Figure 4 The paper surface and points to the inside of the paper surface. The directional word "left" means Figure 4 The left direction in the word "right" indicates Figure 4 In the right direction in Figure 4 In the upper direction in Figure 4 In the lower direction. The present invention is described from the observation perspective of the reader or user, but the above orientation words should not be understood or interpreted as limiting the protection scope of the present invention. Regarding the dimensions and angles of the components therein, those skilled in the art can specifically determine them according to actual needs or through a limited number of tests.

[0027] As Figures 1 to 4 shown, a maintenance belly band system for an AS332C1 type helicopter described in an embodiment of the present invention includes an in-cabin bracket 1, an out-of-cabin cross beam 2, and an insulating rope 3. The in-cabin bracket 1 can be fixed inside the cabin 71 of the helicopter body 7. Two out-of-cabin cross beams 2 are arranged at intervals left and right. The inner ends of the out-of-cabin cross beams 2 are connected to the in-cabin bracket 1, and pulleys 5 are connected to the outer ends of the out-of-cabin cross beams 2. The insulating rope 3 bypasses the pulleys 5, and the lower end of the insulating rope 3 can be connected and fixed to a hanging basket 8.

[0028] The in-cabin bracket 1 includes two bracket cross beams 11. The two bracket cross beams 11 are arranged at intervals front and back. The two bracket cross beams 11 are symmetric front and back and are mirror images of each other. The two bracket cross beams 11 both extend in the left-right direction. The length of the bracket cross beam 11 (the dimension in the left-right direction) is less than the width of the helicopter body 7 (the dimension in the left-right direction). The two bracket cross beams 11 are connected and fixed through a connecting member 14. The connecting member 14 is of a U-shaped structure. A plurality of connecting members 14 are arranged at intervals in the left-right direction. The bracket cross beam 11 and the connecting member 14 are connected and fixed through bolts and nuts.

[0029] As Figures 3 and 4 shown, the in-cabin bracket 1 further includes two bracket rear longitudinal beams 12. The two bracket rear longitudinal beams 12 are symmetric left and right and are mirror images of each other. The two bracket rear longitudinal beams 12 are both located behind the two bracket cross beams 11. The two bracket rear longitudinal beams 12 are arranged at intervals left and right. The two bracket rear longitudinal beams 12 both extend in the front-back direction. The front ends of the two bracket rear longitudinal beams 12 are both connected and fixed to a rear bracket cross beam 11 through bolts and nuts.

[0030] The distance between the two bracket rear longitudinal beams 12 is less than the length of the bracket cross beam 11. The rear ends of the two bracket rear longitudinal beams 12 are connected and fixed through a rear connecting rod 15. The rear connecting rod 15 extends in the left-right direction. The bracket rear longitudinal beam 12 and the rear connecting rod 15 are connected and fixed through bolts and nuts. The two bracket rear longitudinal beams 12 are both connected and fixed to the lock seat 72 inside the cabin 71 through bolts and nuts.

[0031] The cabin bracket 1 also contains two bracket front longitudinal beams 13, which are symmetrical and mirror images of each other. The two bracket front longitudinal beams 13 are located in front of the two bracket cross beams 11. The two bracket front longitudinal beams 13 are spaced apart on the left and right. The two bracket front longitudinal beams 13 extend in the front and rear directions. The rear ends of the two bracket front longitudinal beams 13 are connected and fixed to a front bracket cross beam 11 by bolts and nuts.

[0032] like Figures 3 and 4 As shown, the distance between the two bracket front longitudinal beams 13 is less than the length of the bracket cross beam 11, and the front ends of the two bracket front longitudinal beams 13 are connected and fixed by a front connecting rod 16. The front connecting rod 16 extends in the left and right directions. The bracket front longitudinal beams 13 and the front connecting rod 16 are connected and fixed by bolts and nuts. The two bracket front longitudinal beams 13 are both connected and fixed to the lock seat 72 in the cabin 71 by bolts and nuts.

[0033] The two front longitudinal beams 13 of the support frame are aligned with the two rear longitudinal beams 12 in a front-to-rear direction. The length (fore-and-aft dimension) of the front longitudinal beams 13 of the support frame is shorter than the length (fore-and-aft dimension) of the rear longitudinal beams 12 of the support frame. The length of the front longitudinal beams 13 of the support frame is 15%-50% of the length of the rear longitudinal beams 12. The cross beam 11 of the support frame, the rear longitudinal beams 12 of the support frame, and the front longitudinal beams 13 of the support frame are all made of aluminum alloy.

[0034] In the fore-aft direction, the two outboard crossbeams 2 are located between the two support crossbeams 11. The two outboard crossbeams 2 are bilaterally symmetrical and mirror images of each other. They both extend in the left-right direction, with the inner ends of the outboard crossbeams 2 located inside the nacelle 71 and the outer ends of the outboard crossbeams 2 located outside the nacelle 71. The inner ends of the outboard crossbeams 2 are connected to the support crossbeams 11 via a rotating shaft 17. The rotating shaft 17 extends in the fore-aft direction, allowing the outboard crossbeams 2 to rotate about the rotating shaft 17, allowing the outer ends of the outboard crossbeams 2 to rotate into or outside the nacelle 71.

[0035] like Figures 3 and 4 As shown, when the outboard cross beam 2 needs to be folded and retracted, the outer end of the outboard cross beam 2 rotates into the cabin 71, and the outboard cross beam 2 is in an upright position, extending in the vertical direction. When the outboard cross beam 2 needs to be unfolded and extended, the outer end of the outboard cross beam 2 rotates outside the cabin 71, and the outboard cross beam 2 is in a horizontal position, extending in the horizontal direction.

[0036] The support beam 11 is provided with a locking member 18 that locks the exterior beam 2 and the support beam 11, thereby securing the exterior beam 2 in either an upright or horizontal position. The locking member 18 may be a locking bolt, for example, a first locking bolt and a second locking bolt. The first locking bolt can lock the exterior beam 2 in a horizontal position, while the second locking bolt can lock the exterior beam 2 in an upright position. The support beam 11 is provided with a mounting hole through which the locking member 18 can pass and abut against the exterior beam 2.

[0037] The two outer crossbeams 2 are the left outer crossbeam 21 and the right outer crossbeam 22. The diameter of the insulating rope 3 can be 16 mm to 20 mm, and the load-bearing capacity of the insulating rope 3 is not less than 1000 kg. The insulating rope 3 includes a left rope 31 and a right rope 32 arranged on the left and right sides.

[0038] The internal bearings of pulley 5 use standard rolling bearings, and the sheave groove is made of fire-resistant and wear-resistant bakelite with fabric inserts. The groove width is compatible with insulating rope 3 with a diameter of 16mm-20mm. The pulley 5 wheel diameter is no less than three times the rope diameter. The outer side of pulley 5 is equipped with an anti-slip mechanism and a protective pin, which is connected to a damper to prevent the basket 8 from tilting left or right too quickly.

[0039] The left side rope 31 passes over the pulley 5 connected to the outer end of the left outer beam 21. The left side rope 31 contains an upper left rope segment 311 and a lower left rope segment 312 connected in sequence from top to bottom. The upper left rope segment 311 is connected and fixed to the bracket 1 in the cabin; the right side rope 32 passes over the pulley 5 connected to the outer end of the right outer beam 22. The right side rope 32 contains an upper right rope segment 321 and a lower right rope segment 322 connected in sequence from top to bottom. The upper right rope segment 321 is connected and fixed to the bracket 1 in the cabin.

[0040] The upper left rope segment 311 and the upper right rope segment 321 are both horizontal and extend in the left-right direction, with the axis of the pulley 5 extending in the front-back direction. The lower ends of the lower left rope segment 312 and the lower ends of the lower right rope segment 322 are connected and fixed to the left and right ends of the upper portion of the hanging basket 8 in a one-to-one correspondence.

[0041] like Figures 1 to 2As shown, an anti-twist bar 4 is arranged between the lower left rope segment 312 and the lower right rope segment 322. The anti-twist bar 4 can prevent the hanging basket 8 from rotating significantly during the shaking process. The anti-twist bar 4 is an acute-angled structure. The anti-twist bar 4 contains an upper connecting rod 41 and a lower connecting rod 42 arranged up and down. The right end of the upper connecting rod 41 and the right end of the lower connecting rod 42 are spaced apart up and down. The right end of the upper connecting rod 41 and the right end of the lower connecting rod 42 are both connected to the lower right rope segment 322 through a first quick-release joint 43, and the left end of the upper connecting rod 41 and the left end of the lower connecting rod 42 are both connected to the second quick-release joint 44. The second quick-release joint 44 is connected to the lower left rope segment 312.

[0042] Both the upper left rope segment 311 and the upper right rope segment 321 are connected to a rope cutting device 6, which is connected to the cabin bracket 1. The rope cutting device 6 can cut the upper left rope segment 311 and the upper right rope segment 321 and release the insulating rope 3 from the cabin bracket 1. The rope cutting device 6 connected to the upper left rope segment 311 can cut the upper left rope segment 311, and the rope cutting device 6 connected to the upper right rope segment 321 can cut the upper right rope segment 321.

[0043] Rope cutting device 6 can utilize an explosive cap, which can be a conventional product. The explosive cap converts chemical energy into mechanical cutting force. When activated by an electric current, the explosive within the device ignites, and high-speed gas propels the cutter head to sever the insulating rope 3 (i.e., upper left rope segment 311 and upper right rope segment 321) passing through its blade hole. In an emergency, the insulating rope 3 can be severed to release the hanging basket 8. Alternatively, rope cutting device 6 can utilize conventional hydraulic shears.

[0044] The following describes a helicopter, which is an AS332C1 helicopter. The helicopter includes a helicopter body 7 and the above-mentioned maintenance operation belt system for the AS332C1 helicopter. The helicopter body 7 contains a cockpit and a cabin 71 arranged in front and back. The cabin bracket 1 is fixed in the cabin 71 of the helicopter body 7, and the lower end of the insulating rope 3 is connected to the basket 8.

[0045] The maintenance belt system for the AS332C1 helicopter is easy to disassemble. Simply remove the basket 8 and anti-torsion bar 4, retract the insulating rope 3, and finally remove the cabin bracket 1 from the fuselage. This system is easy to install and allows for the basket 8 to be jettisoned in an emergency. It can be retrofitted to the helicopter while ensuring the safety of operators. It also offers ease of installation and flexibility.

[0046] The following describes the maintenance operation of the belly belt system and the working process of the helicopter for the AS332C1 helicopter.

[0047] When maintenance work is required, the outer crossbeam 2 is unfolded and extended to a horizontal position, and the first locking bolt is tightened to prevent the outer crossbeam 2 from rotating relative to the inner bracket 1. The lower end of the insulating rope 3 is connected to the hanging basket 8. When the maintenance work is completed, the first locking bolt is loosened, the outer crossbeam 2 is folded back to an upright position, and the second locking bolt is tightened to prevent the outer crossbeam 2 from rotating relative to the inner bracket 1. The lower end of the insulating rope 3 is disconnected from the hanging basket 8.

[0048] The above description is merely a specific embodiment of the present invention and is not intended to limit the scope of the present invention. Therefore, substitutions of equivalent components, or equivalent changes and modifications made within the scope of protection of the present invention, should still fall within the scope of the present invention. Furthermore, the technical features, technical features, technical solutions, technical solutions, and embodiments of the present invention may be freely combined.

Claims

1. A maintenance belt system for AS332C1 helicopter, characterized in that: The maintenance operation belly belt system for the AS332C1 helicopter comprises an in-cabin bracket (1), an out-cabin crossbeam (2) and an insulating rope (3), wherein the in-cabin bracket (1) can be fixed in a cabin (71) of a helicopter body (7), two out-cabin crossbeams (2) are arranged at intervals on the left and right, the inner ends of the out-cabin crossbeams (2) are connected to the in-cabin bracket (1), the outer ends of the out-cabin crossbeams (2) are connected to a pulley (5), and the lower ends of the insulating ropes (3) can be connected and fixed to a hanging basket (8); The two outer cross beams (2) extend in the left-right direction, the inner end of the outer cross beam (2) is located in the cabin (71), and the outer end of the outer cross beam (2) is located outside the cabin (71). The inner end of the outer cross beam (2) is connected to the support cross beam (11) through a rotating shaft (17). The rotating shaft (17) extends in the front-back direction. The outer cross beam (2) can rotate around the rotating shaft (17). The outer end of the outer cross beam (2) can rotate to the inside of the cabin (71) or outside the cabin (71). A locking component (18) is provided on the support cross beam (11). The locking component (18) locks the outer cross beam (2) and the support cross beam (11); The two outer cross beams (2) are respectively a left outer cross beam (21) and a right outer cross beam (22), and the insulating rope (3) includes a left rope (31) and a right rope (32) arranged on the left and right sides; The left rope (31) passes around a pulley (5) connected to the outer end of the left outer crossbeam (21). The left rope (31) includes an upper left rope section (311) and a lower left rope section (312) connected in sequence. The upper left rope section (311) is connected and fixed to the cabin bracket (1). The right rope (32) passes around a pulley (5) connected to the outer end of the right outer crossbeam (22). The right rope (32) includes an upper right rope segment (321) and a lower right rope segment (322) connected in sequence. The upper right rope segment (321) is connected and fixed to the cabin bracket (1). An anti-twist bar (4) is provided between the lower left rope segment (312) and the lower right rope segment (322). The anti-twist bar (4) has an acute-angled structure. The anti-twist bar (4) comprises an upper connecting rod (41) and a lower connecting rod (42). The right end of the upper connecting rod (41) and the right end of the lower connecting rod (42) are arranged at intervals in the upper and lower directions. The right end of the upper connecting rod (41) and the right end of the lower connecting rod (42) are both connected to the lower right rope segment (322) via a first quick-release joint (43). The left end of the upper connecting rod (41) and the left end of the lower connecting rod (42) are both connected to a second quick-release joint (44). The second quick-release joint (44) is connected to the lower left rope segment (312).

2. The maintenance operation belly belt system for AS332C1 helicopter according to claim 1, characterized in that: The cabin support (1) comprises two support beams (11), the two support beams (11) are spaced apart in front and back, both of the two support beams (11) extend in the left-right direction, and the two support beams (11) are connected and fixed by a connecting piece (14).

3. The maintenance operation belly belt system for AS332C1 helicopter according to claim 2, characterized in that: The cabin bracket (1) further comprises two bracket rear longitudinal beams (12), which are spaced apart from each other on the left and right sides. Both bracket rear longitudinal beams (12) extend in the front-to-back direction, and the front ends of both bracket rear longitudinal beams (12) are connected and fixed to a rear bracket cross beam (11).

4. The maintenance operation belly belt system for AS332C1 helicopter according to claim 3, characterized in that: The distance between the two bracket rear longitudinal beams (12) is less than the length of the bracket cross beam (11), the rear ends of the two bracket rear longitudinal beams (12) are connected and fixed by a rear connecting rod (15), and the two bracket rear longitudinal beams (12) are connected and fixed to the lock seat (72) in the cabin (71) by bolts and nuts.

5. The maintenance operation belly belt system for AS332C1 helicopter according to claim 2, characterized in that: The cabin bracket (1) further comprises two bracket front longitudinal beams (13), the two bracket front longitudinal beams (13) are spaced apart from each other, the two bracket front longitudinal beams (13) extend in the front-back direction, and the rear ends of the two bracket front longitudinal beams (13) are connected and fixed to a front bracket cross beam (11).

6. The maintenance operation belly belt system for AS332C1 helicopter according to claim 5, characterized in that: The distance between the two bracket front longitudinal beams (13) is less than the length of the bracket cross beam (11), the front ends of the two bracket front longitudinal beams (13) are connected and fixed by a front connecting rod (16), and the two bracket front longitudinal beams (13) are connected and fixed to the lock seat (72) in the cabin (71) by bolts and nuts.

7. The maintenance operation belly belt system for AS332C1 helicopter according to claim 1, characterized in that: The upper left rope segment (311) and the upper right rope segment (321) are both connected to a rope cutting device (6), which is connected to the cabin bracket (1). The rope cutting device (6) can cut the upper left rope segment (311) and the upper right rope segment (321) and separate the insulating rope (3) from the cabin bracket (1).

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