A cargo basket retrofitted to a skid landing gear

Abstract

The utility model provides a freight basket is added on skid lift frame, and the basket body includes: basket body frame and the blue body wire net that arranges on basket body frame, and forms the basket body structure that has the opening in top, the basket cover one side long side adopts the hinge and is connected with the basket body opening end, the one side of basket body frame is equipped with at least 2 groups of skid mounting interface of quick -detach structure, is used for through skid mounting interface and installs freight basket in the one side of skid lift frame horizontal pipe, and through the mounting structure of connecting standard spare fixed skid mounting interface and horizontal pipe, and the whole basket body is located the upper side of corresponding side slip pipe, the other side long side of basket cover middle installation has the handle and locking assembly of integral structure, and the basket cover realizes the locking and uncovers the cover with the basket body through the handle and locking assembly. The utility model realizes the skid lift frame of being equipped with on some type helicopter through compatible assembly freight basket, and the freight capacity of helicopter is greatly promoted.

Description

Technical Field

[0001] This utility model relates to the field of helicopter landing gear technology, and more particularly to a cargo basket mounted on a skid landing gear. Background Technology

[0002] Helicopters, due to their vertical takeoff and landing capabilities, are highly maneuverable and can adapt to various complex environments and mission requirements.

[0003] However, due to the limitations of helicopter airframe structure and size, its carrying capacity is usually relatively small. Utility Model Content

[0004] The purpose of this utility model is to provide a cargo basket that can be mounted on a skid landing gear, thereby greatly improving the cargo carrying capacity of a helicopter by compatiblely mounting a cargo basket on the skid landing gear of a certain type of helicopter.

[0005] The technical solution of this utility model is as follows: This utility model provides a cargo basket that is installed on a skid landing gear, including: basket body 10, basket cover 20, handle and locking assembly 30, hinge 50, skid mounting interface 40, and connecting standard parts;

[0006] The basket 10 includes a basket frame and a wire mesh laid on the basket frame, forming a basket structure with an opening at the top; the long side of the basket cover 20 is connected to the opening end of the basket 10 by a hinge; at least two sets of quick-release skid mounting interfaces 40 are assembled on one side of the basket frame, which are used to install the cargo basket on one side of the horizontal tube 201 of the skid landing gear through the skid mounting interfaces 40, and fix the installation structure of the skid mounting interface 40 and the horizontal tube 201 by connecting standard parts, and the entire basket 10 is located above the corresponding side skid tube 202;

[0007] A handle and locking assembly 30 with an integrated structure are installed in the middle of the long side of the other side of the basket cover 20. The basket cover 20 can be locked to the basket body 10 and opened by means of the handle and locking assembly 30.

[0008] Optionally, in the cargo basket installed on the skid landing gear as described above, the skid mounting interface 40 includes: quick-release clamps and anti-slip pads; the connecting standard parts include bolts and nuts;

[0009] The basket frame includes multiple parallel U-shaped support frames and a basket opening frame fixedly connected to the top of each U-shaped support frame; at least two U-shaped support frames in the basket frame are provided with mounting seats on one side, and quick-release clamps are installed on the mounting seats, and anti-slip rubber pads are attached to the inner side wall of the quick-release clamps.

[0010] The quick-release clamp is designed with a symmetrical opening structure, with connecting lugs symmetrically arranged at both ends of the opening. These lugs are used to engage with the horizontal tube 201 of the skid landing gear through the opening ends. The quick-release clamp is then fixed with nuts after bolts are passed through the opening ends on both sides.

[0011] Optionally, in the cargo basket mounted on the skid landing gear as described above, the handle and locking assembly 30 includes: a handle 31 and at least two sets of locking mechanisms 32; each set of locking mechanisms 32 includes: an upper lock seat 33, a lower lock seat 34, a roller 35 and a lock head rocker arm 36, as well as a lock head mounting bolt 37 and a roller mounting bolt 38;

[0012] In each set of locking mechanisms 32, the upper locking seat 33 and the lower locking seat 34 are both configured as double-ear structures. The upper locking seat 33 is installed on the side wall of the opening side of the basket cover 20, and the lower locking seat 34 is installed at the corresponding position on the top side wall of the basket frame and is located directly below the upper locking seat 33. The lower locking seat 34 is equipped with a roller 35 by a roller mounting bolt 38, so that the roller 35 rotates axially along the roller mounting bolt 38, and a roller center rubber pad 35a is provided between the roller 35 and the roller mounting bolt 38.

[0013] The inner side of the lock rocker arm 36 has a mounting seat and a concave roller hook. The lock rocker arm 36 is hinged to the upper lock seat 33 through the mounting seat and lock mounting bolt 37 on its inner side. By rotating the lock rocker arm 36 along the axial direction of the lock mounting bolt 37, the roller hook of the lock rocker arm 36 can open and close on the roller or disengage from the roller 35, so as to realize the locking or unlocking function of the locking mechanism 32.

[0014] The handle 31 is fixedly connected to the bottom of each lock rocker arm 36, and is used to apply locking or unlocking force to each locking mechanism 32 simultaneously by operating the handle 31.

[0015] Optionally, the cargo basket mounted on the skid landing gear as described above,

[0016] In the locked state, each locking mechanism 32 bears the load applied in the direction perpendicular to the connection direction of the lock head mounting bolt 37 and the roller mounting bolt 38 through the lock head rocker arm 36, that is, it bears the load in the unlocking direction.

[0017] During the unlocking process, each locking mechanism 32 uses the external force applied by the handle 31 to drive the lock head rocker arm 36 to rotate axially around the lock head mounting bolt 37 in the unlocking direction, which in turn drives the roller 35 to rotate and compresses the roller center rubber pad 35a to deform. When the hook angle of the inner side of the lock head rocker arm 36 that contacts the roller 35 disengages from the roller, the load-bearing capacity in the unlocking direction is released, and the system enters the unlocking state.

[0018] Optionally, in the cargo basket mounted on the skid landing gear as described above, each set of locking mechanisms 32 further includes: a cover rubber pad 39;

[0019] The locking seat 33 is configured as an L-shaped mounting seat, which is fixedly engaged with the upper wall and side wall of the opening side of the basket cover 20. The seat body of the locking seat 33 on the side wall is configured as a double-ear structure for hinged locking head rocker arm 36. The seat body of the locking seat 33 on the upper wall is provided with a groove for attaching the opening rubber pad 39, so as to prevent the locking head rocker arm 36 from abrading the basket cover 20 when unlocking each locking mechanism 32 by the handle and pulling the locking head rocker arm 36 in the opening direction.

[0020] Optionally, in the cargo basket mounted on the skid landing gear as described above, the hinge installed between the basket cover 20 and the open end of the basket body 10 is configured as a four-bar linkage.

[0021] Each hinge 50 includes: an upper hinge 51 riveted to one side of the basket cover 20, a lower hinge 52 riveted to one side of the basket body 10, an upper hinge rocker arm 53 connected to the lower part of the upper hinge 51 and the upper part of the lower hinge 52, and a lower hinge rocker arm 54 connected to the upper part of the upper hinge 51 and the lower part of the lower hinge 52, with the lower hinge rocker arm 54 located outside the upper hinge rocker arm 53; the opening angle of the hinge 50 is determined by the lengths of the upper hinge rocker arm 53 and the lower hinge rocker arm 54.

[0022] Optionally, the cargo basket mounted on the skid landing gear as described above,

[0023] The basket cover 20 includes: a basket cover frame formed by a basket cover opening frame and a plurality of support rods arranged horizontally and vertically within the basket cover opening frame, and a basket cover wire mesh arranged on the basket cover frame; the upper surface of the basket cover wire mesh is coated with anti-slip paint.

[0024] The beneficial effects of this utility model are as follows: This utility model provides a cargo basket that can be mounted on a skid landing gear. Its main structure includes a basket body 10, a basket cover 20, a handle, and a locking assembly 30. Through the skid mounting interface 40 on one side of the basket frame, the entire cargo basket can be quickly and easily installed on the outside of the cross tube 201 of the skid landing gear. This means that the cargo basket provided by this utility model is fully compatible with the skid landing gear of a certain type of helicopter, ensuring that the high-altitude skid landing gear of that type of helicopter can carry extra-long and dangerous cargo, greatly improving the helicopter's cargo capacity. The cargo basket 100 is fully compatible with the skid landing gear 200 of a certain type of helicopter, can be quickly disassembled and installed using common tools, and is reusable. The cargo basket provided by this utility model also has the following beneficial effects:

[0025] First, the cargo basket is installed on the outside of the skid landing gear, which does not affect the passenger boarding entrance, and the basket cover 20 can meet the needs of one person (90kg / person) to step on it for helicopter maintenance when the cargo basket is installed.

[0026] Secondly, the cargo basket and the horizontal tube 201 of the skid landing gear are quickly connected and installed using quick-release clamps and anti-slip pads, which can reduce the impact of the cargo basket on the helicopter during cargo loading and flight overload.

[0027] Third, a locking mechanism, namely an integrated hand and locking mechanism 32, is provided between the cargo basket body 10 and the basket cover 20 to ensure that the cargo basket cover 20 will not open during flight. In addition, multiple locking mechanisms 32 can be applied simultaneously by the handle, ensuring that the locking mechanisms 32 can be opened / closed with one hand. Furthermore, the handle is ergonomically designed for a more comfortable grip when opening the basket cover 20. The locking mechanism 32 ensures that the overload load generated by the cargo will not push the basket cover 20 open under flight overload conditions.

[0028] Third, the cargo basket hinge 50 has a self-locking function, which not only ensures that the cargo basket opens and closes normally according to the predetermined trajectory, but also limits the opening angle of the hinge 50 by setting the length of the upper rocker arm 53 and the lower rocker arm 54 of the hinge, so as to ensure that opening the cargo basket cover 20 will not cause the cover 20 to damage the helicopter fuselage structure. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solution of this utility model and do not constitute a limitation on the technical solution of this utility model.

[0030] Figure 1 A schematic diagram of the overall structure of a cargo basket mounted on a skid landing gear, provided for an embodiment of this utility model;

[0031] Figure 2 for Figure 1 The diagram shown illustrates the structural relationship of the cargo basket's assembly position on the skid landing gear in the embodiment provided.

[0032] Figure 3 for Figure 1 The illustrated embodiment provides a structural schematic diagram of the handle and locking mechanism in the cargo basket mounted on the skid landing gear.

[0033] Figure 4 for Figure 3 The illustrated embodiment provides a schematic diagram of the handle and locking mechanism in various states. Figure 4 In the diagram, image a represents the locked state, and image b represents the unlocked state.

[0034] Figure 5 for Figure 1 The illustrated embodiment provides a structural schematic diagram of the hinge in the cargo basket mounted on the skid landing gear;

[0035] Figure 6 for Figure 1 The illustrated embodiment shows the cargo basket mounted on the skid landing gear in its open state. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0037] As explained in the background section above, helicopters have the advantage of high maneuverability; however, they also have some disadvantages, namely, their carrying capacity is usually relatively small.

[0038] In order to improve the carrying capacity of helicopters to a certain extent, this utility model provides a cargo basket that can be installed on a skid landing gear. The cargo basket provided by this utility model can be loaded on the high-altitude skid landing gear provided by the applicant of this utility model with application number CN202010180394.9, and has the ability to be quickly installed and removed.

[0039] The present invention provides the following specific embodiments, which can be combined with each other. For the same or similar concepts or processes, they will not be described again in some embodiments.

[0040] Figure 1 A schematic diagram of the overall structure of a cargo basket mounted on a skid landing gear, provided for an embodiment of this utility model; Figure 2 for Figure 1 The illustrated embodiment provides a structural schematic diagram of the assembly position relationship of the cargo basket on the skid landing gear.

[0041] See Figure 1 and Figure 2As shown, the cargo basket provided in this embodiment of the present invention includes: a basket body 10, a basket cover 20, a handle and locking assembly 30, a hinge 50, a skid mounting interface 40, and connecting standard parts. In the structure of this cargo basket, the basket body 10 includes: a basket frame and a wire mesh laid on the basket frame, forming a basket structure with an opening at the top; one long side of the basket cover 20 is connected to the open end of the basket body 10 by a hinge; one side of the basket frame is equipped with at least two sets of quick-release skid mounting interfaces 40, used to install the cargo basket on one side of the horizontal tube 201 of the skid landing gear 200 through the skid mounting interfaces 40, and to fix the mounting structure of the skid mounting interface 40 and the horizontal tube 201 by connecting standard parts, with the entire basket body 10 located above the corresponding side skid tube 202.

[0042] like Figure 2 As shown, the cargo basket provided in this embodiment of the utility model is installed on the side of the horizontal tube 201 and located above the corresponding side sliding tube 202. That is, when people board the plane, they need to step on the basket cover 20 of the cargo basket. Therefore, the basket cover 20 needs to have a certain load-bearing capacity to meet the weighing requirements of people stepping on it when boarding the plane, as well as the weighing requirements of ground staff when performing ground maintenance. Its weighing capacity is set, for example, to meet the load-bearing capacity of 1 person (90kg / person).

[0043] In this embodiment of the utility model, an integrated handle and locking component 30 are installed in the middle of the other long side of the basket cover 20. The basket cover 20 can be locked to the basket body 10 and opened by means of the handle and locking component 30.

[0044] It should be noted that helicopters equipped with skid landing gear can have a cargo basket installed on each side of the horizontal tube 201, or a cargo basket can be installed on only one side of the horizontal tube 201.

[0045] In one implementation of this utility model, the skid mounting interface 40 includes: a quick-release clamp and an anti-slip pad; and the connecting standard parts include bolts and nuts. For example... Figure 1 Figure 2 As shown, the basket frame includes multiple parallel U-shaped support frames and a basket opening frame fixedly connected to the top of each U-shaped support frame; at least two U-shaped support frames in the basket frame are provided with mounting seats on one side, and quick-release clamps are installed on the mounting seats, with anti-slip rubber pads attached to the inner side wall of the quick-release clamps.

[0046] In this implementation, the quick-release clamp is set as a symmetrical open structure, with connecting lugs symmetrically arranged at both ends of the opening position. It is used to engage with the horizontal tube 201 of the skid landing gear through the open end, and is fixedly connected by nuts after passing through the open ends of the quick-release clamp with bolts.

[0047] In this embodiment of the invention, the connection structure between the cargo basket and the skid landing gear adopts a combination of quick-release clamps and anti-slip pads that allow for rapid assembly and disassembly. This ensures the cargo basket's installation position while reducing the impact on the landing gear during loading and unloading of cargo and cargo overload during flight, thus maintaining the integrity of the skid landing gear's paint layer and ensuring stable flight. Using common tools, the quick-release clamps of the cargo basket can be quickly assembled and disassembled, allowing for rapid adjustment of the aircraft's takeoff status and greatly facilitating ground crew operations.

[0048] In one implementation of this utility model, an embodiment of the handle and locking component 30 is provided, such as... Figure 3 As shown, Figure 1 The illustrated embodiment provides a structural schematic diagram of the handle and locking mechanism in the cargo basket mounted on the skid landing gear. Figure 4 for Figure 3 The illustrated embodiment provides a schematic diagram of the handle and locking mechanism in various states. Figure 4 Image a shows the locked state, and image b shows the unlocked state.

[0049] Reference Figure 3 and Figure 4 As shown, the handle and locking assembly 30 includes: a handle 31 and at least two sets of locking mechanisms 32. Figure 3 and Figure 4 The example shown is configured with two sets of locking mechanisms 32. Each set of locking mechanisms 32 includes: an upper lock seat 33, a lower lock seat 34, a roller 35, and a lock head rocker arm 36, as well as a lock head mounting bolt 37 and a roller mounting bolt 38.

[0050] In each set of locking mechanisms 32 in this implementation, the upper locking seat 33 and the lower locking seat 34 are both configured as double-ear structures. The upper locking seat 33 is installed on the side wall of the opening side of the basket cover 20, and the lower locking seat 34 is installed at the corresponding position on the top side wall of the basket frame and is located directly below the upper locking seat 33. The lower locking seat 34 is equipped with a roller 35 by a roller mounting bolt 38, so that the roller 35 rotates axially along the roller mounting bolt 38, and a roller center rubber pad 35a is provided between the roller 35 and the roller mounting bolt 38.

[0051] In addition, the inner side of the lock rocker arm 36 has a mounting base and a concave roller hook. The lock rocker arm 36 is hinged to the upper lock seat 33 through the mounting base and the lock mounting bolt 37 on its inner side. By rotating the lock rocker arm 36 along the axial direction of the lock mounting bolt 37, the roller hook of the lock rocker arm 36 can open and close on the roller or disengage from the roller 35, so as to realize the locking or unlocking function of the locking mechanism 32. The handle is fixedly connected to the bottom of each lock rocker arm 36 and is used to apply locking or unlocking force to each locking mechanism 32 synchronously by operating the handle.

[0052] The integrated handle and locking assembly 30 provided in this implementation allows for simultaneous force application to multiple locking mechanisms 32 via the handle, and has multiple force application positions. This ensures that the locking mechanisms 32 can be opened / closed with one hand while maintaining uniform force on the basket handle. Furthermore, the handle's ergonomic design provides a more comfortable grip when opening the basket cover 20; the locking mechanisms 32 ensure that the overload generated by the cargo will not push the basket cover 20 open under flight overload conditions.

[0053] like Figure 4 The state diagram of the locking mechanism 32 shown indicates that the unlocking method is as follows: when force is applied in the unlocking direction, after the roller hook of the lock head rocker arm 36 disengages from the roller 35, the external force changes to the opening direction to open the basket cover 20.

[0054] The working principle of the handle and locking assembly 30 is as follows: In the locked state, the lock rocker arm 36 bears the load applied in the direction perpendicular to the connection direction of the lock mounting bolt 37 and the roller mounting bolt 38, that is, it bears the load in the unlocking direction; therefore, it can bear the load in the opening direction, ensuring that in the flight state, the flight load will not cause the basket cover 20 of the cargo basket to open.

[0055] During the unlocking process, the external force applied by the handle along the unlocking direction drives the lock rocker arm 36 to rotate axially around the lock mounting bolt 37, causing the roller to rotate and press the roller's central rubber pad 35a to deform. When the hook angle of the inner side of the lock rocker arm 36 that contacts the roller 35 disengages from the roller, the load-bearing capacity in the unlocking direction is released, and the system enters the unlocking state.

[0056] Furthermore, such as Figure 3 As shown, each locking mechanism 32 also includes an opening rubber pad 39.

[0057] The locking seat 33 is configured as an L-shaped mounting seat, which is fixedly engaged with the upper wall and side wall of the opening side of the basket cover 20. The seat body of the locking seat 33 on the side wall is configured as a double-ear structure for hinged locking head rocker arm 36. The seat body of the locking seat 33 on the upper wall is provided with a groove for attaching the opening rubber pad 39, so as to prevent the locking head rocker arm 36 from abrading the basket cover 20 when unlocking each locking mechanism 32 by the handle and pulling the locking head rocker arm 36 in the opening direction.

[0058] In one implementation of this utility model, a hinge structure is provided, such as... Figure 5 As shown, Figure 1 The illustrated embodiment provides a structural schematic diagram of the hinge in the cargo basket mounted on the skid landing gear; Figure 6 for Figure 1 The illustrated embodiment shows the cargo basket mounted on the skid landing gear in its open state.

[0059] Reference Figure 5 and Figure 6 As shown, the hinge 50 installed between the basket cover 20 and the opening end of the basket body 10 is configured as a four-bar linkage mechanism. Each hinge 50 includes: an upper hinge 51 riveted to one side of the basket cover 20, a lower hinge 52 riveted to one side of the basket body 10, an upper hinge rocker arm 53 connected to the lower part of the upper hinge 51 and the upper part of the lower hinge 52, and a lower hinge rocker arm 54 connected to the upper part of the upper hinge 51 and the lower part of the lower hinge 52, with the lower hinge rocker arm 54 located outside the upper hinge rocker arm 53. The opening angle of the hinge is determined by the lengths of the upper hinge rocker arm 53 and the lower hinge rocker arm 54. When the hinge 50 is opened to its maximum angle, the two rocker arms are pressed together, preventing the basket cover 20 from opening to a larger angle and avoiding the risk of the basket cover 20 damaging the machine structure.

[0060] like Figure 6 As shown, in this implementation, the hinge structure based on the four-bar linkage has a self-locking function, which can ensure that the cargo basket opens and closes normally according to the predetermined trajectory. The opening angle of the hinge is limited by setting the length of the upper rocker arm 53 and the lower rocker arm 54 of the hinge, so as to ensure that the basket cover 20 will not damage the fuselage structure 300 of the helicopter in case of misoperation.

[0061] In one implementation of this utility model embodiment, such as Figure 1 and Figure 2 As shown, the basket cover 20 includes: a basket cover frame formed by a basket cover opening frame, multiple support rods arranged horizontally and vertically within the basket cover opening frame, and a basket cover wire mesh arranged on the basket cover frame.

[0062] In this implementation, the upper surface of the wire mesh of the basket cover is coated with anti-slip paint, which ensures that the basket cover 20 of the cargo basket can be stepped on by one person (90kg / person) for ground maintenance, while ensuring that stepping is comfortable and preventing slipping.

[0063] The cargo basket provided in this embodiment of the present invention, which is mounted on a skid landing gear, comprises a main structure including a basket body 10, a basket cover 20, a handle, and a locking assembly 30. Through the skid mounting interface 40 on one side of the basket frame, the entire cargo basket can be quickly and easily installed on the outside of the cross tube 201 of the skid landing gear. This means that the cargo basket provided in this embodiment is fully compatible with the skid landing gear of a certain type of helicopter, ensuring that the high-altitude skid landing gear of that type of helicopter can carry extra-long and dangerous cargo, greatly improving the helicopter's cargo capacity. The cargo basket 100 is fully compatible with the skid landing gear 200 of that type of helicopter, can be quickly disassembled and installed using common tools, and is reusable. The cargo basket provided in this embodiment of the present invention also has the following beneficial effects:

[0064] First, the cargo basket is installed on the outside of the skid landing gear, which does not affect the passenger boarding entrance, and the basket cover 20 can meet the needs of one person (90kg / person) to step on it for helicopter maintenance when the cargo basket is installed.

[0065] Secondly, the cargo basket and the horizontal tube 201 of the skid landing gear are quickly connected and installed using quick-release clamps and anti-slip pads, which can reduce the impact of the cargo basket on the helicopter during cargo loading and flight overload.

[0066] Third, a locking mechanism, namely an integrated hand and locking mechanism 32, is provided between the cargo basket body 10 and the basket cover 20 to ensure that the cargo basket cover 20 will not open during flight. In addition, multiple locking mechanisms 32 can be applied simultaneously by the handle, ensuring that the locking mechanisms 32 can be opened / closed with one hand. Furthermore, the handle is ergonomically designed for a more comfortable grip when opening the basket cover 20. The locking mechanism 32 ensures that the overload load generated by the cargo will not push the basket cover 20 open under flight overload conditions.

[0067] Third, the cargo basket hinge 50 has a self-locking function, which not only ensures that the cargo basket opens and closes normally according to the predetermined trajectory, but also limits the opening angle of the hinge 50 by setting the length of the upper rocker arm 53 and the lower rocker arm 54 of the hinge, so as to ensure that opening the cargo basket cover 20 will not cause the cover 20 to damage the helicopter fuselage structure.

[0068] The following is a specific implementation example illustrating how the cargo basket mounted on the skid landing gear provided in this utility model embodiment is implemented.

[0069] Implementation Example

[0070] The cargo basket provided in this implementation example, which is mounted on the skid landing gear, is fully compatible with the high-altitude skid landing gear of the AC311A helicopter and can be quickly installed and removed using common tools.

[0071] like Figures 1 to 6 The cargo basket shown mainly consists of a basket body 10, a basket cover 20, a handle and locking assembly 30, hinges, a skid mounting interface 40, and connecting standard parts; the structural form of the cargo basket, as well as its installation position and installation method on the skid landing gear, are the same as the cargo baskets installed on the skid landing gear provided in the above embodiments.

[0072] The cargo basket in this example has the following dimensions: length 2400mm, width 615mm, height 425mm, weight 35.5kg, and payload 95kg. Equipping the helicopter with this cargo basket increases its cargo loading capacity.

[0073] In this implementation example, the cargo basket is installed on the outside of the horizontal tube 201 of the skid landing gear of a certain type of helicopter, without affecting the passenger boarding entrance, and the basket cover 20 of the cargo basket can meet the needs of one person (90kg / person) to step on and perform helicopter maintenance when the cargo basket is installed.

[0074] In this implementation example, the cargo basket is connected to the skid landing gear via quick clamps and rubber pads, which can reduce the impact of the cargo basket on the helicopter during cargo loading and flight overload.

[0075] In this implementation example, a locking mechanism, namely an integrated hand and locking mechanism 32, is provided between the cargo basket body 10 and the basket cover 20, which can ensure that the cargo basket cover 20 will not open during flight.

[0076] In this implementation example, the cargo basket hinge uses a four-bar linkage mechanism, such as... Figure 5 As shown, the hinge of the four-bar linkage has a self-locking function. When the opening and closing reaches the maximum angle, the two rocker arms are pressed together to prevent the cargo basket cover 20 from opening to a greater angle, thereby ensuring that opening the cargo basket cover 20 will not damage the helicopter fuselage structure.

[0077] Although the embodiments disclosed in this utility model are as described above, the content is only for the purpose of facilitating understanding of this utility model and is not intended to limit this utility model. Any person skilled in the art to which this utility model pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this utility model, but the patent protection scope of this utility model shall still be determined by the scope defined in the appended claims.

Claims

1. A cargo basket mounted on a skid landing gear, characterized in that, include: Basket body (10), basket cover (20), handle and locking assembly (30), hinge (50), skid mounting interface (40), and connecting standard parts; The basket (10) includes a basket frame and a wire mesh laid on the basket frame, forming a basket structure with an opening at the top; the long side of the basket cover (20) is connected to the opening end of the basket (10) by a hinge; at least two quick-release skid mounting interfaces (40) are fitted on one side of the basket frame, which are used to install the cargo basket on one side of the horizontal tube (201) of the skid landing gear through the skid mounting interface (40), and fix the installation structure of the skid mounting interface (40) and the horizontal tube (201) by connecting standard parts, and the entire basket (10) is located above the corresponding side skid tube (202); The basket cover (20) is equipped with an integrated handle and locking assembly (30) in the middle of the long side of the other side. The basket cover (20) can be locked to the basket body (10) and opened by means of the handle and locking assembly (30).

2. The cargo basket mounted on the skid landing gear according to claim 1, characterized in that, The skid mounting interface (40) includes: quick-release clamps and anti-slip pads; the standard connecting parts include bolts and nuts; The basket frame includes multiple parallel U-shaped support frames and a basket opening frame fixedly connected to the top of each U-shaped support frame; at least two U-shaped support frames in the basket frame are provided with mounting seats on one side, and quick-release clamps are installed on the mounting seats, and anti-slip rubber pads are attached to the inner side wall of the quick-release clamps. The quick-release clamp is configured with a symmetrical open structure, with connecting lugs symmetrically arranged at both ends of the opening position. It is used to engage with the horizontal tube (201) of the skid landing gear through the open end, and is fixedly connected by nuts after passing through the open ends of the quick-release clamp with bolts.

3. The cargo basket mounted on the skid landing gear according to claim 1, characterized in that, The handle and locking assembly (30) includes: a handle (31) and at least two sets of locking mechanisms (32); each set of locking mechanisms (32) includes: an upper lock seat (33), a lower lock seat (34), a roller (35) and a lock head rocker arm (36), as well as a lock head mounting bolt (37) and a roller mounting bolt (38); In each of the locking mechanisms (32), the upper locking seat (33) and the lower locking seat (34) are both configured as double-ear structures. The upper locking seat (33) is installed on the side wall of the opening side of the basket cover (20), and the lower locking seat (34) is installed at the corresponding position on the top side wall of the basket frame and is located directly below the upper locking seat (33). The lower locking seat (34) installs the roller (35) through the roller mounting bolt (38), so that the roller (35) rotates axially along the roller mounting bolt (38), and a roller center rubber pad (35a) is provided between the roller (35) and the roller mounting bolt (38). The inner side of the lock rocker arm (36) has a mounting seat and a concave roller hook. The lock rocker arm (36) is hinged to the upper lock seat (33) through the mounting seat and lock mounting bolt (37) on its inner side. By rotating the lock rocker arm (36) along the axial direction of the lock mounting bolt (37), the roller hook of the lock rocker arm (36) can open and close on the roller or disengage from the roller (35) to realize the locking or unlocking function of the locking mechanism (32). The handle (31) is fixedly connected to the bottom of each lock rocker arm (36) and is used to apply locking or unlocking force to each locking mechanism (32) simultaneously by operating the handle (31).

4. The cargo basket mounted on the skid landing gear according to claim 3, characterized in that, In the locked state, each locking mechanism (32) bears the load applied in the direction perpendicular to the connection direction of the lock head mounting bolt (37) and the roller mounting bolt (38) through the lock head rocker arm (36), that is, it bears the load in the unlocking direction; During the unlocking process, each locking mechanism (32) drives the lock head rocker arm (36) to rotate axially around the lock head mounting bolt (37) by the external force applied by the handle (31) along the unlocking direction, which drives the roller (35) to rotate and compresses the roller center rubber pad (35a) to deform. When the hook angle of the roller hook on the inner side of the lock head rocker arm (36) that contacts the roller (35) disengages from the roller, the ability to bear the load in the unlocking direction is released, and the unlocking state is entered.

5. The cargo basket mounted on the skid landing gear according to claim 4, characterized in that, Each locking mechanism (32) further includes: a cover-opening rubber pad (39); The upper locking seat (33) is configured as an L-shaped mounting seat, which is fixedly engaged with the upper wall and side wall of the opening side of the basket cover (20) by its L-shaped mounting seat. The seat body of the upper locking seat (33) on the side wall is configured as a double-ear structure for hinged locking head rocker arm (36). The upper locking seat (33) on the upper wall has a groove for attaching the opening rubber pad (39) to prevent the locking head rocker arm (36) from wearing the basket cover (20) when unlocking each locking mechanism (32) by the handle and pulling the locking head rocker arm (36) in the opening direction.

6. The cargo basket mounted on the skid landing gear according to claim 1, characterized in that, The hinge installed between the basket cover (20) and the opening end of the basket body (10) is configured as a four-bar linkage mechanism; Each hinge (50) includes: an upper hinge (51) riveted to one side of the basket cover (20), a lower hinge (52) riveted to one side of the basket body (10), an upper hinge rocker arm (53) connected to the lower part of the upper hinge (51) and the upper part of the lower hinge (52), and a lower hinge rocker arm (54) connected to the upper part of the upper hinge (51) and the lower part of the lower hinge (52), with the lower hinge rocker arm (54) located outside the upper hinge rocker arm (53); the opening angle of the hinge (50) is determined by the length of the upper hinge rocker arm (53) and the lower hinge rocker arm (54).

7. The cargo basket mounted on the skid landing gear according to any one of claims 1 to 6, characterized in that, The basket cover (20) includes: a basket cover frame formed by a basket cover opening frame and multiple support rods arranged horizontally and vertically within the basket cover opening frame, and a basket cover wire mesh arranged on the basket cover frame; the upper surface of the basket cover wire mesh is coated with anti-slip paint.

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