Unmanned aerial vehicle arm device

Abstract

The utility model discloses an unmanned aerial vehicle arm device, which relates to the technical field of unmanned aerial vehicles, and comprises four groups of hinge seats fixedly connected with the periphery of an unmanned aerial vehicle main body respectively, connecting seats rotatably connected with the inner walls of the hinge seats and fixedly connected with one ends, far away from propellers, of arms, and positioning seats fixedly connected with the outer walls of the arms. A positioning hole is formed in the positioning seat, a threaded rod is connected to the inner wall of the positioning hole in an abutting mode, a fixing seat is connected to the outer wall of the threaded rod in a threaded mode, a nut is fixedly connected to the end, away from the positioning seat, of the threaded rod, the side end of the fixing seat is fixedly connected with the hinge seat, and the nut is connected with a limiting assembly in an abutting mode. According to the vehicle arm fixing device, the threaded rod abuts against the inner wall of the positioning hole to position the positioning base, the positioning base transmits the positioning effect of the threaded rod to the vehicle arm, so that the effect of fixing the vehicle arm is achieved, the threaded rod positions the positioning base, use of a buckle is avoided, and the phenomenon that a bolt of the buckle is loosened is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane technical field, concretely relates to a kind of unmanned plane arm device. BACKGROUND

[0002] Unmanned plane is a kind of aerial vehicle without onboard pilot, is operated by remote control or autonomous flight control system, unmanned plane can be divided into multiple types according to its use, size, flight ability etc., is widely used in military, civilian and commercial fields.

[0003] In prior art, unmanned plane often uses folding arm to fix propeller, before use, user opens arm by rotating, buckle is fixed on arm by bolt, user closes buckle, buckle is locked to arm, so as to realize the effect of fixing arm.

[0004] However, buckle will appear bolt loosening phenomenon after long time use, unmanned plane will produce vibration in the process of flight, vibration will aggravate bolt loosening of buckle, which leads to the locking effect of buckle to arm is poor, further leads to unmanned plane to shake in flight, so as to lead to unmanned plane to exist the risk of falling in flight. SUMMARY

[0005] The utility model aims at providing a kind of unmanned plane arm device, to solve the technical problem that unmanned plane flight produced vibration aggravates bolt loosening of buckle, which leads to unstable unmanned plane flight even falling.

[0006] The technical problem to be solved by the utility model can be realized by the following technical scheme:

[0007] A kind of unmanned plane arm device, including unmanned plane main body and arm, the arm is equipped with four groups and is located unmanned plane main body four around respectively, arm side end is fixedly connected with propeller;

[0008] Further comprising:

[0009] Hinge seat, the hinge seat is equipped with four groups and is fixedly connected with unmanned plane main body four around respectively, hinge seat inner wall is rotatably connected with connecting seat, the connecting seat is fixedly connected with the end of arm away from propeller;

[0010] Positioning seat, the positioning seat is fixedly connected with the outer wall of arm, positioning seat is internally provided with positioning hole, the positioning hole inner wall is rotatably connected with threaded rod, the threaded rod outer wall is threadedly connected with fixed seat, threaded rod is fixedly connected with nut at the end away from positioning seat, the fixed seat side end is fixedly connected with hinge seat, the nut is rotatably connected with limiting assembly.

[0011] The positioning pad is connected with the threaded rod.

[0012] The sensor is fixedly connected in the positioning seat, the threaded rod is fixedly connected with the contact head in the shape of a hemisphere at one end away from the nut, and the contact head is connected with the sensor.

[0013] The connecting shaft is arranged in the hinge seat, the upper and lower ends of the connecting shaft are fixedly connected with the inner wall of the hinge seat, the connecting hole is longitudinally arranged in the connecting seat, the inner wall of the connecting hole is rotationally connected with the connecting shaft, the nut is arranged through the hinge seat, the connecting seat and the connecting shaft to form the limiting hole, and the limiting hole is connected with the limiting assembly.

[0014] The limiting assembly comprises a pull plate and a limiting tube, the limiting tube is connected with the inner wall of the limiting hole, the side end of the limiting tube is fixedly connected with the pull plate, the top of the pull plate is provided with a connecting rod, and the side end of the connecting rod is fixedly connected with the hinge seat.

[0015] The limiting tube is internally provided with a spring, the limiting plate is slidingly connected with the inner wall of the limiting tube, the spring is arranged at the top of the limiting tube, the two ends of the spring are fixedly connected with the limiting tube and the limiting plate respectively, and the limiting plate is fixedly connected with the side end of the connecting rod.

[0016] The limiting plate is connected with the inner wall of the spring.

[0017] The locking hole is arranged through the inside of the connecting seat, the inner diameter of the locking hole is equal to the inner diameter of the limiting hole, and the axis of the locking hole is perpendicular to the axis of the limiting hole.

[0018] The utility model discloses the beneficial effects of:

[0019] When the arm is completely opened, the user controls the nut to rotate, the nut drives the threaded rod to rotate, the threaded rod rotates along the threaded hole arranged in the fixed seat, when the threaded rod is inserted into the positioning hole, the threaded rod is positioned to the positioning seat through the abutting connection with the inner wall of the positioning hole, the part of the outer wall of the threaded rod inserted into the positioning hole is not arranged with the thread line, and the positioning seat transmits the positioning effect of the threaded rod to the arm, so that the arm is fixed.

[0020] When the unmanned aerial vehicle body runs, vibration phenomenon will occur, in order to avoid the vibration to cause the threaded rod to rotate phenomenon, when the threaded rod is positioned to the positioning seat, the limiting assembly bears the nut, the limiting assembly bears the nut, further limits the threaded rod, avoids the threaded rod to rotate phenomenon, so that the threaded rod is positioned to the positioning seat to ensure that the arm does not shake. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model makes further explanation in combination with the drawings.

[0022] Figure 1 It is the overall structure schematic diagram of the utility model;

[0023] Figure 2 It is the hinge seat and arm structure schematic diagram of the utility model;

[0024] Figure 3 It is the hinge seat structure overhead schematic diagram of the utility model;

[0025] Figure 4 It is the hinge seat structure A-A section view of the utility model;

[0026] Figure 5 It is the hinge seat structure B-B section view of the utility model;

[0027] Figure 6 It is the limiting assembly structure schematic diagram of the utility model;

[0028] Figure 7 It is the connecting seat structure schematic diagram of the utility model.

[0029] In the drawing: 1, unmanned aerial vehicle body; 2, hinge seat; 3, arm; 4, propeller; 5, connecting seat; 6, positioning seat; 7, threaded rod; 8, fixed seat; 9, nut; 10, pull plate; 11, limiting pipe; 12, limiting plate; 13, connecting rod; 14, connecting shaft; 15, connecting hole; 16, spring; 17, limiting hole; 18, positioning hole; 19, positioning pad; 20, sensor; 21, contact head; 22, limiting groove; 23, locking hole. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0031] As Figures 1-7As shown, a UAV arm device, including a UAV main body 1 and an arm 3, the arm 3 is provided with four groups and is respectively located around the UAV main body 1, the side end of the arm 3 is fixedly connected with a propeller 4, further comprising:

[0032] The hinge seat 2 is provided with four groups and is respectively fixedly connected with the four around the UAV main body 1, the inner wall of the hinge seat 2 is rotatably connected with a connecting seat 5, the connecting seat 5 is fixedly connected with one end of the arm 3 away from the propeller 4, a positioning seat 6 is fixedly connected with the outer wall of the arm 3, the positioning seat 6 is provided with a positioning hole 18 inside, the inner wall of the positioning hole 18 is abuttingly connected with a threaded rod 7, the outer wall of the threaded rod 7 is threadedly connected with a fixed seat 8, one end of the threaded rod 7 away from the positioning seat 6 is fixedly connected with a nut 9, the side end of the fixed seat 8 is fixedly connected with the hinge seat 2, the nut 9 is abuttingly connected with a limiting assembly, when the UAV main body 1 is running, the user rotates the arm 3, the arm 3 carrying the propeller 4 rotates, the fixed connecting seat 5 of the arm 3 rotates on the hinge seat 2, when the arm 3 is fully opened, the user controls the nut 9 to rotate, the nut 9 drives the threaded rod 7 to rotate, the threaded rod 7 rotates along the threaded hole of the fixed seat 8, when the threaded rod 7 is inserted into the positioning hole 18, the threaded rod 7 positions the positioning seat 6 through the abutting of the inner wall of the positioning hole 18, the part of the threaded rod 7 extending into the positioning hole 18 is not provided with a thread line, the positioning seat 6 transmits the positioning effect of the threaded rod 7 to the arm 3, thereby realizing the effect of fixing the arm 3, when the threaded rod 7 stops rotating, the threaded rod 7 is threadedly connected with the inner wall of the threaded hole of the fixed seat 8, thereby realizing the effect of fixing the threaded rod 7, the threaded rod 7 positions the positioning seat 6 to avoid the use of buckles, thereby avoiding the loosening of the bolts of the buckles;

[0033] When the UAV main body 1 runs, vibration phenomenon will occur, in order to avoid the vibration causing the self-rotation of the threaded rod 7, when the threaded rod 7 positions the positioning seat 6, the limiting assembly abuts the nut 9, the limiting assembly further limits the threaded rod 7 through the abutting of the nut 9, thereby avoiding the self-rotation of the threaded rod 7, thereby the threaded rod 7 positions the positioning seat 6 to ensure that the arm 3 will not shake.

[0034] In some specific embodiments, the inner wall of the positioning hole 18 is fixedly connected with a positioning pad 19, the positioning pad 19 is abuttingly connected with the threaded rod 7, the vibration generated by the UAV main body 1 is transmitted to the threaded rod 7 through the arm 3 and the positioning seat 6, in order to avoid the vibration causing the abrasion of the threaded hole of the fixed seat 8 and the threaded rod 7, the positioning pad 19 fixedly connected with the inner wall of the positioning hole 18 is plastic, when the threaded rod 7 is inserted into the positioning hole 18, the threaded rod 7 abuts the positioning pad 19, the positioning pad 19 can buffer the vibration transmitted by the positioning seat 6, thereby avoiding the vibration being transmitted to the threaded rod 7 and protecting the thread line on the surface of the threaded rod 7.

[0035] In some specific embodiments, the positioning seat 6 is internally fixedly connected with a sensor 20, the threaded rod 7 is fixedly connected with a contact head 21 in the shape of a hemisphere at the end away from the nut 9, the contact head 21 is abuttingly connected with the sensor 20, when the threaded rod 7 is installed in the positioning hole 18, the fixed contact head 21 of the threaded rod 7 and the sensor 20 abut, the sensor 20 detects the stability of the threaded rod 7 by abutting the contact head 21, when the threaded rod 7 shakes or loosens, the sensor 20 detects the change of the contact head 21, thereby transmitting a signal to the user, and the user controls the unmanned aerial vehicle main body 1 to stop flying in time.

[0036] In some specific embodiments, the hinge seat 2 is internally provided with a connecting shaft 14, the upper and lower ends of the connecting shaft 14 are fixedly connected with the inner wall of the hinge seat 2 respectively, the connecting seat 5 is longitudinally provided with a connecting hole 15, the inner wall of the connecting hole 15 is rotationally connected with the connecting shaft 14, the nut 9 penetrates through the hinge seat 2, the connecting seat 5 and the connecting shaft 14 to be provided with a limiting hole 17, the inner wall of the limiting hole 17 is abuttingly connected with a limiting component, when the connecting seat 5 rotates with the arm 3, the user installs the limiting component on the limiting hole 17, the limiting component abuts the inner wall of the limiting hole 17, thereby limiting the nut 9, avoiding the phenomenon that the nut 9 rotates with the threaded rod 7, and the limiting component can further fix the connecting seat 5, thereby achieving the effect of fixing the arm 3 after being opened.

[0037] In some specific embodiments, the limiting component includes a pull plate 10 and a limiting tube 11, the limiting tube 11 is abuttingly connected with the inner wall of the limiting hole 17, the side end of the limiting tube 11 is fixedly connected with the pull plate 10, the top of the pull plate 10 is provided with a connecting rod 13, the side end of the connecting rod 13 is fixedly connected with the hinge seat 2, when the limiting component is installed in the limiting hole 17, the user controls the pull plate 10 to insert the limiting tube 11 into the limiting hole 17, the limiting tube 11 and the inner wall of the limiting hole 17 abut, thereby achieving the effect of installing the limiting component.

[0038] In some specific embodiments, the limiting tube 11 is internally provided with a spring 16, the limiting tube 11 is slidably connected with a limiting plate 12 on the inner wall of the limiting tube 11, the limiting tube 11 is provided with the spring 16 on the top, the two ends of the spring 16 are fixedly connected with the limiting tube 11 and the limiting plate 12 respectively, the limiting plate 12 is fixedly connected with the side end of the connecting rod 13, the limiting plate 12 is abuttingly connected with the inner wall of the spring 16, the spring 16 is always in a compressed state, when the limiting tube 11 is inserted into the limiting hole 17, the limiting plate 12 is fixed on the side end of the hinged seat 2 through the connecting rod 13, the limiting plate 12 provides a supporting effect for the side end of the spring 16, when the limiting tube 11 is inserted into the limiting hole 17, the elastic tension of the spring 16 abuts against the limiting tube 11, so that the phenomenon that the limiting tube 11 is detached from the limiting hole 17 is avoided, when the threaded rod 7 is installed in the positioning hole 18, the user controls the pull plate 10 to pull the limiting tube 11, the limiting tube 11 compresses the spring 16, at this time, the pull plate 10 and the nut 9 are not in contact, at the same time, the user controls the nut 9 to rotate the threaded rod 7, when the threaded rod 7 is installed in the positioning hole 18, the limiting hole 17 provided by the nut 9 is aligned with the limiting hole 17 provided by the connecting seat 5 and the connecting shaft 14, when the limiting tube 11 is inserted into the limiting hole 17, the limiting plate 12 slides along the inner wall of the limiting tube 11, the limiting plate 12 slides along the limiting grooves 22 on the two sides respectively, the limiting plate 12 abuts against the limiting grooves 22 to provide a limiting effect for the limiting tube 11, so that the phenomenon that the limiting tube 11 is self-rotated is avoided.

[0039] In some specific embodiments, the connecting seat 5 is internally provided with a locking hole 23, the inner diameter of the locking hole 23 is equal to the inner diameter of the limiting hole 17, the axis of the locking hole 23 is perpendicular to the axis of the limiting hole 17, when the unmanned aerial vehicle body 1 is not in use, the connecting seat 5 is self-rotated by the arm 3, at this time, the locking hole 23 provided by the connecting seat 5 is aligned with the limiting hole 17 provided by the hinged seat 2 and the connecting shaft 14, the user installs the limiting tube 11 in the locking hole 23, the limiting assembly can position the connecting seat 5 after resetting, so that the phenomenon that the arm 3 shakes after resetting is avoided.

[0040] The above describes several embodiments of the utility model in detail, but the utility model embodiments are not limited to this, and cannot be considered as limiting the implementation range of the utility model. Any equivalent changes and improvements within the scope of the utility model application should still belong to the patent coverage range of the utility model.

Claims

1. An unmanned aerial vehicle arm device, comprising an unmanned aerial vehicle body (1) and an arm (3), the arm (3) is provided with four groups and is respectively located around the unmanned aerial vehicle body (1), the side end of the arm (3) is fixedly connected with a propeller (4); characterized in that Further comprising: a hinged seat (2), the hinged seat (2) is provided with four groups and is respectively fixedly connected with the unmanned aerial vehicle body (1) around, the inner wall of the hinged seat (2) is rotatably connected with a connecting seat (5), the connecting seat (5) is fixedly connected with the end of the arm (3) away from the propeller (4); a positioning seat (6), the positioning seat (6) is fixedly connected with the outer wall of the arm (3), the inside of the positioning seat (6) is provided with a positioning hole (18), the inner wall of the positioning hole (18) is abuttingly connected with a threaded rod (7), the outer wall of the threaded rod (7) is threadedly connected with a fixed seat (8), the threaded rod (7) is fixedly connected with a nut (9) at the end away from the positioning seat (6), the side end of the fixed seat (8) is fixedly connected with the hinged seat (2), and the nut (9) is abuttingly connected with a limiting assembly.

2. The unmanned aerial vehicle arm apparatus of claim 1, wherein, The inner wall of the positioning hole (18) is fixedly connected with a positioning pad (19), and the positioning pad (19) is abuttingly connected with the threaded rod (7).

3. The unmanned aerial vehicle arm apparatus of claim 1, wherein, The inside of the positioning seat (6) is fixedly connected with a sensor (20), the end of the threaded rod (7) away from the nut (9) is fixedly connected with a contact head (21) in the shape of a hemisphere, and the contact head (21) is abuttingly connected with the sensor (20).

4. The unmanned aerial vehicle arm apparatus of claim 1, wherein, The inside of the hinged seat (2) is provided with a connecting shaft (14), the upper and lower ends of the connecting shaft (14) are respectively fixedly connected with the inner wall of the hinged seat (2), the connecting seat (5) is longitudinally provided with a connecting hole (15), the inner wall of the connecting hole (15) is rotatably connected with the connecting shaft (14), the nut (9) penetrates the hinged seat (2), the connecting seat (5) and the connecting shaft (14) to form a limiting hole (17), and the inner wall of the limiting hole (17) is abuttingly connected with the limiting assembly.

5. The unmanned aerial vehicle arm apparatus of claim 4, wherein, The limiting assembly comprises a pull plate (10) and a limiting tube (11), the limiting tube (11) is abuttingly connected with the inner wall of the limiting hole (17), the side end of the limiting tube (11) is fixedly connected with the pull plate (10), and the top of the pull plate (10) is provided with a connecting rod (13), and the side end of the connecting rod (13) is fixedly connected with the hinged seat (2).

6. The unmanned aerial vehicle arm apparatus of claim 5, wherein, The inside of the limiting tube (11) is provided with a spring (16), the inner wall of the limiting tube (11) is slidably connected with a limiting plate (12), the top of the limiting tube (11) is provided with the spring (16), the two ends of the spring (16) are respectively fixedly connected with the limiting tube (11) and the limiting plate (12), and the side end of the limiting plate (12) is fixedly connected with the connecting rod (13).

7. The unmanned aerial vehicle arm apparatus of claim 6, wherein, The limiting plate (12) is abuttingly connected with the inner wall of the spring (16).

8. The unmanned aerial vehicle arm apparatus of claim 4, wherein, The inside of the connecting seat (5) is provided with a locking hole (23), the inner diameter size of the locking hole (23) is equal to the inner diameter size of the limiting hole (17), and the axis of the locking hole (23) is perpendicular to the axis of the limiting hole (17).

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