Lightweight hanging device and aircraft

Abstract

The utility model discloses a light hanging device and an aircraft, comprising a self-locking mechanism; the self-locking mechanism comprises a shell, a hook is arranged inside the shell; the hook is rotatably connected to the shell near the middle position, the bottom end is close to the bottom of the shell, the top end is close to the top of the shell, the bottom end of the hook contacts the bottom of the shell, and the top end of the hook is rotatably connected to the front end of a self-locking rod; the rear end of the self-locking rod is located on the side facing the bottom end of the hook, the rear end of the self-locking rod is hinged with the front end of a rocker, and the rear end of the rocker is rotatably connected to the shell; a limiting boss, a self-locking boss and a locking boss are arranged in the shell, the limiting boss is located above the rear end of the rocker, the locking boss is located at the front end of the self-locking rod, a self-locking boss is arranged between the rear end of the rocker and the locking boss, the position of the self-locking boss is lower than the connection line between the locking boss and the rear end of the rocker, and the locking boss is arranged upwardly tilted toward one end of the self-locking boss. It has the characteristics of simple structure, small volume, light weight and high reliability.

Description

Technical Field

[0001] The utility model belongs to the field of hanging transportation and relates to a light hanging device and an aircraft. Background Art

[0002] With its maneuverability and flexibility, helicopters are increasingly used in the field of transportation. They can quickly ensure the supply of ammunition, food, and medicines in areas with inconvenient transportation such as war fronts, border outposts, islands, sea islands, hilly and mountainous areas, and transport and airdrop survival supplies when transportation is interrupted after disasters such as earthquakes, floods, fires, and snowstorms. The hanging device is the main equipment for its transportation tasks. With the development of society, the number of light and small helicopters is increasing, and the scope of application is wider. The hanging device is required to be light in weight and highly reliable in order to enhance the carrying capacity of light and small helicopters and increase the application scenarios. Although the current hanging device has a large carrying capacity, it has a complex structure and a heavy weight, which is not suitable for light and small helicopters. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art suspension device having a complex structure and heavy weight, and to provide a lightweight suspension device and an aircraft having the characteristics of simple structure, small size, light weight and high reliability.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A light hanging device, comprising a self-locking mechanism;

[0006] The self-locking mechanism includes a housing, and a hook is arranged inside the housing; the hook is rotatably connected to the housing near the middle position, the bottom end is close to the bottom of the housing, the top end is close to the top of the housing, the bottom end of the hook contacts the bottom of the housing, and the top end of the hook is rotatably connected to the front end of the self-locking rod;

[0007] The rear end of the self-locking rod is located on the side facing the bottom end of the hook, the rear end of the self-locking rod is hinged with the front end of the rocker, and the rear end of the rocker is rotatably connected to the housing;

[0008] A limiting boss, a self-locking boss and a locking boss are arranged in the shell. The limiting boss is located above the rear end of the rocker, the locking boss is located at the front end of the self-locking rod, a self-locking boss is arranged between the rear end of the rocker and the locking boss, the position of the self-locking boss is lower than the connecting line between the locking boss and the rear end of the rocker, and the locking boss is arranged to be inclined upward toward one end of the self-locking boss.

[0009] Preferably, a spring is connected between the hook near the top position and the self-locking rod.

[0010] Furthermore, a concave block is arranged at the top of the hook, and a roller is arranged at the front end of the self-locking rod.

[0011] Preferably, the top of the self-locking mechanism is hinged with the bottom of the connecting rod, and the top of the connecting rod is hinged with a connecting flange.

[0012] Furthermore, the connecting rod is connected to the connecting flange and the self-locking mechanism through hinges to form a cross hinge.

[0013] Furthermore, the length of the flange surface is greater than half the length of the belly.

[0014] Preferably, the connecting rod adopts a tension sensor.

[0015] Preferably, a manual knob, a torque motor and an emergency cable are provided on the housing, and the manual knob, the torque motor and the emergency cable are all connected to the rocker.

[0016] An aircraft comprises the light hanging device, wherein the top of the self-locking mechanism of the hanging device is connected to the belly of the aircraft.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] When cargo is hung on the hook of the self-locking mechanism of the utility model, the angle between the rocker and the self-locking rod is less than 180 degrees, and at the same time, it is restricted by the locking boss and the self-locking boss to form a reliable self-locking structure to achieve cargo hanging. When it needs to be opened, a counterclockwise torque is generated on the rocker to break the self-locking state and achieve cargo delivery. The utility model has a simple structure, small size, light weight and high reliability.

[0019] Furthermore, under the action of the spring, the hinge point between the rocker arm and the self-locking rod is always restricted by the position of the self-locking boss of the housing, thereby ensuring reliable self-locking.

[0020] Furthermore, the roller contacts the locking boss when locked, forming a reliable locked state, and rotates when opened to reduce the friction with the hook and the locking boss, thereby reducing the opening torque requirement.

[0021] Furthermore, the cross hinge formed by the connecting rod can release the bending moment caused by the swinging of the cargo.

[0022] Furthermore, the longer flange surface can effectively disperse the load and reduce the strength requirements of the aircraft belly hanging point.

[0023] Furthermore, the tension sensor can realize the weighing of the suspended cargo and the real-time measurement of the suspended load during the flight.

[0024] Furthermore, the hanging device is designed with a manual knob, a torque motor and an emergency cable, which are connected to the rocker. When acting, a counterclockwise opening torque can be generated on the rocker to achieve manual mechanical release, normal motor release or emergency cable release. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1This is a schematic diagram of installing the light hanging device of the utility model on a helicopter;

[0026] Figure 2 This is a schematic diagram of the structure of the light hanging device of the utility model;

[0027] Figure 3 This is a schematic diagram of the mounting and locking state of the utility model;

[0028] Figure 4 It is a schematic diagram of the release state of the utility model.

[0029] Among them: 1-helicopter, 2-hanging device, 3-cargo, 4-connecting flange, 5-connecting rod, 6-self-locking mechanism, 7-manual knob, 8-torque motor, 9-emergency cable, 10-rocker, 11-self-locking rod, 12-roller, 13-limiting boss, 14-locking boss, 15-spring, 16-hook, 17-self-locking boss. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0031] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] like Figure 1 As shown, the aircraft of this embodiment takes a helicopter as an example, and the aircraft may also be a flying object capable of vertical take-off and landing, such as a drone. The hanging device 2 is installed on the belly of the helicopter 1 through the connecting flange 4. The longer flange surface can effectively disperse the load and reduce the strength requirement of the hanging point on the belly of the helicopter 1. In this embodiment, the length of the flange surface is greater than half of the length of the belly.

[0034] like Figure 2As shown, the light hanging device 2 of the utility model includes a connecting flange 4, a connecting rod 5, a self-locking mechanism 6, a manual knob 7, a torque motor 8 and an emergency cable 9.

[0035] The bottom of the connecting flange 4 and the top of the self-locking mechanism 6 are connected by a connecting rod 5. The connecting rod 5 is connected to the connecting flange 4 and the self-locking mechanism 6 by a hinge to form a cross hinge, which can effectively release the bending moment caused by the swing of the hanging cargo 3 to prevent affecting the hanging flight stability of the helicopter 1.

[0036] The self-locking mechanism 6 includes a housing, such as Figure 3 As shown, a rocker 10, a self-locking rod 11, a roller 12, a limiting boss 13, a locking boss 14, a spring 15, a hook 16 and a self-locking boss 17 are arranged inside the housing.

[0037] The hook 16 is a bent rod, which is rotatably connected to the shell in the middle or near the middle position, with the bottom end close to the bottom of the shell and the top end close to the top of the shell. The bottom end of the hook 16 contacts the bottom of the shell to achieve a closed state of the hook 16, and the cargo 3 is prevented from falling off after being hung. The top end of the hook 16 is rotatably connected to the front end of the self-locking rod 11.

[0038] A spring 15 is connected between the hook 16 and the self-locking rod 11. The top of the hook 16 can be hinged to the front end of the self-locking rod 11, or a recessed block can be provided at the top of the hook 16. Through the pulling force of the spring 15, the front end of the self-locking rod 11 is always located in the recessed block, which facilitates the installation and disassembly of the self-locking mechanism 6.

[0039] The rear end of the self-locking rod 11 is located on the side facing the bottom end of the hook 16, and the front end of the rocker 10 is hinged to the rear end of the self-locking rod 11, and the rear end of the rocker 10 is rotatably connected to the housing.

[0040] A limiting boss 13, a self-locking boss 17 and a locking boss 14 are provided in the shell. The limiting boss 13 is located above the rear end of the rocker 10, and the locking boss 14 is located at the front end of the self-locking rod 11. A self-locking boss 17 is provided between the rear end of the rocker 10 and the locking boss 14. The position of the self-locking boss 17 is lower than the connecting line between the locking boss 14 and the rear end of the rocker 10. In this embodiment, the locking boss 14 and the rear end of the rocker 10 are located in the same horizontal plane, and the locking boss 14 is inclined upward toward one end of the self-locking boss 17.

[0041] When the bottom end of the hook 16 contacts the shell, that is, when the hook 16 is closed, the front end of the self-locking rod 11 contacts the bottom surface of the locking boss 14, and the hinge between the self-locking rod 11 and the rocker 10 contacts the top surface of the self-locking boss 17. The upward angle between the rocker 10 and the self-locking rod 11 is less than 180°, forming a reliable self-locking angle.

[0042] When the bottom end of the hook 16 is disengaged from the housing, that is, when the hook 16 is opened, the front end of the self-locking rod 11 does not contact the bottom surface of the locking boss 14, the hinge between the self-locking rod 11 and the rocker 10 does not contact the top surface of the self-locking boss 17, and the rocker 10 contacts the side surface of the limiting boss 13.

[0043] A roller 12 is designed at the contact head of the self-locking rod 11 and the hook 16. When a concave block is provided at the top of the hook 16, the roller 12 is always in contact with the concave block. When locked, it contacts the locking boss 14 to form a reliable locked state. When opened, it rotates to reduce the friction with the hook 16 and reduce the opening torque M requirement.

[0044] A manual knob 7, a torque motor 8 and an emergency cable 9 are provided on the shell. The manual knob 7, the torque motor 8 and the emergency cable 9 are all connected to the rocker 10. When they act, a counterclockwise opening torque M can be generated on the rocker 10 to realize manual mechanical delivery, normal motor delivery or emergency cable delivery. The control ends of the torque motor 8 and the emergency cable 9 are located in the helicopter cab.

[0045] The connecting rod 5 may adopt a tension sensor to realize the weight weighing of the hanging cargo 3 and the real-time measurement of the hanging load during the flight.

[0046] like Figure 3 As shown, after the cargo 3 is mounted on the hook 16, the hook 16 is pushed upward, the hook 16 rotates clockwise, the self-locking rod 11 is pulled counterclockwise by the spring 15, and the rocker 10 is synchronously driven to rotate clockwise. At this time, under the action of the spring 15, the hinge between the rocker 10 and the self-locking rod 11 is limited by the position of the self-locking boss 17 of the housing, and the angle between the rocker 10 and the self-locking rod 11 is less than 180°, forming a reliable self-locking angle;

[0047] The hook 16 transmits the torque generated by the cargo 3 to the roller 12 of the self-locking rod 11. According to the structural principle, the self-locking rod 11 will produce a counterclockwise rotation trend along the hinge formed with the rocker 10. When not restricted, the roller 12 moves to produce a trajectory a, but is restricted by the locking boss 14 and the self-locking boss 17, and the self-locking rod 11 cannot rotate, so that the self-locking mechanism 6 enters a reliable locking state;

[0048] like Figure 4 As shown, when the cargo 3 needs to be released, a counterclockwise torque M is applied to the rocker 10 to drive the self-locking rod 11 to rotate smoothly clockwise to break the locked state. After the hook 16 loses the support of the self-locking rod 11, it rotates counterclockwise under the gravity of the cargo 3 to release the hanging cargo 3;

[0049] The utility model utilizes the connecting flange 4 to disperse the installation load on the machine, and releases the bending moment caused by the swing of the cargo 3 through the cross hinge formed by the connecting rod 5. When the cargo 3 is mounted on the hook 16 of the self-locking mechanism 6, the angle between the rocker 10 and the self-locking rod 11 is less than 180°, and at the same time, it is restricted by the locking boss 14 and the self-locking boss 17 to form a reliable self-locking structure to achieve the hanging of the cargo 3. When it needs to be opened, a counterclockwise torque is generated on the rocker 10 by manual mechanical release, normal motor release or emergency cable release to break the self-locking state and achieve the release of the cargo 3.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this patent should not be determined with reference to the above description, but should be determined with reference to the preceding claims and the full scope of equivalents to which these claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a waiver of the subject matter, nor should it be considered that the applicant has not considered the subject matter as part of the disclosed utility model subject matter.

Claims

1. A light hanging device, characterized in that: comprising a self-locking mechanism (6); The self-locking mechanism (6) comprises a housing, and a hook (16) is arranged inside the housing; the hook (16) is rotatably connected to the housing near the middle position, the bottom end is close to the bottom of the housing, and the top end is close to the top of the housing, the bottom end of the hook (16) contacts the bottom of the housing, and the top end of the hook (16) is rotatably connected to the front end of the self-locking rod (11); The rear end of the self-locking rod (11) is located on the side facing the bottom end of the hook (16), the rear end of the self-locking rod (11) is hinged with the front end of the rocker (10), and the rear end of the rocker (10) is rotatably connected to the housing; A limiting boss (13), a self-locking boss (17) and a locking boss (14) are arranged in the housing. The limiting boss (13) is located above the rear end of the rocker (10), the locking boss (14) is located at the front end of the self-locking rod (11), a self-locking boss (17) is arranged between the rear end of the rocker (10) and the locking boss (14), the position of the self-locking boss (17) is lower than the connection line between the locking boss (14) and the rear end of the rocker (10), and the locking boss (14) is arranged to be inclined upward toward one end of the self-locking boss (17).

2. The light hanging device according to claim 1, characterized in that: A spring (15) is connected between the hook (16) near the top end and the self-locking rod (11).

3. The light hanging device according to claim 2, characterized in that: A concave block is arranged at the top end of the hook (16), and a roller (12) is arranged at the front end of the self-locking rod (11).

4. The light hanging device according to claim 1, characterized in that: The top of the self-locking mechanism (6) is hinged to the bottom of the connecting rod (5), and the top of the connecting rod (5) is hinged to the connecting flange (4).

5. The light hanging device according to claim 4, characterized in that: The connecting rod (5) is connected to the connecting flange (4) and the self-locking mechanism (6) through hinges to form a cross hinge.

6. The light hanging device according to claim 4, characterized in that: The length of the flange surface is greater than half of the length of the belly.

7. The light hanging device according to claim 1, characterized in that: The connecting rod (5) adopts a tension sensor.

8. The light hanging device according to claim 1, characterized in that: A manual knob (7), a torque motor (8) and an emergency pull cable (9) are arranged on the housing, and the manual knob (7), the torque motor (8) and the emergency pull cable (9) are all connected to a rocker (10).

9. An aircraft, characterized in that: It comprises the lightweight hanging device as claimed in any one of claims 1 to 8, wherein the top of the self-locking mechanism (6) of the hanging device is connected to the belly of the machine.

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