Unmanned aerial vehicle with telescopic accessories

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle with telescopic accessories. The number of the wing frames is four, the four wing frames are movably arranged on the four sides of the aircraft body, the wing frames can be telescopically adjusted when rotating in the length direction of the aircraft body, and the driving screws are fixedly connected to the tail ends of the wing frames; and the driving device is fixedly arranged in the inner cavity of the machine body. The narrow end of the unmanned aerial vehicle body is one end in the advancing direction, and the wide end of the unmanned aerial vehicle body is the tail end, so that the design mode adapts to the situation that in the posture adjusting process of the unmanned aerial vehicle, airflow generated in the advancing process can be distributed to the two sides all the time, and the driving screws arranged at the wide end are located on the outer sides of the driving screws at the narrow end; therefore, the formed dispersed air flow is just dispersed by the rotating air flow generated by the driving screw, a small surge flow phenomenon is formed, and a stable flight state is conveniently formed.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to an accessory-retractable UAV. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft controlled by radio remote control equipment and their own program control devices.

[0003] Existing drones use fixed wings, which require overcoming the influence of airflow when performing flight missions, resulting in greater drag and higher power consumption. Furthermore, in mountainous or construction environments, where there are narrow and limited flight paths, these fixed-wing drones are difficult to adjust, and changes to the support structure have drawbacks, leading to blind spots and other disadvantages in drone flight. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model proposes a retractable drone with accessories.

[0005] The technical solution of this utility model is achieved as follows: a retractable drone accessory, comprising:

[0006] Organism;

[0007] The aircraft has four wing frames, which are movably mounted on the four sides of the fuselage. The wing frames can be extended or retracted as they rotate along the length of the fuselage.

[0008] A drive screw, which is fixedly connected to the tail end of the wing frame;

[0009] A drive unit is fixedly installed in the inner cavity of the fuselage, and the drive unit is used to drive the wing frame to rotate.

[0010] A telescopic mechanism, one end of which is disposed in the inner cavity of the wing frame, and the other end of which is located in the inner cavity of the fuselage and is connected to the drive device for transmission.

[0011] Furthermore, the body includes a narrow end and a wide end, the narrow end is provided with two recycling troughs II, and the wide end is provided with two recycling troughs I;

[0012] The four wing frames are arranged in pairs and are movably installed in the two recovery troughs and the two recovery troughs respectively.

[0013] Furthermore, the wing frame includes a leg sleeve, which is rotatably mounted inside the fuselage. A leg support is fitted inside the leg sleeve, and a hinged gear is provided in the leg sleeve within the fuselage.

[0014] Furthermore, the driving device includes a slide rail disposed along the length direction in the internal cavity of the machine body, and a second driving rack and a first driving rack are slidably disposed at both ends of the slide rail, and a second upper toothed plate and a first upper toothed plate are fixedly connected to the second driving rack and the first driving rack, respectively.

[0015] It also includes a synchronous electric push rod fixedly connected to the middle of the slide rail. The synchronous electric push rod has two telescopic ends, which are respectively fixedly connected to the opposite side of the first drive rack and the second drive rack.

[0016] The second drive rack and the first drive rack respectively mesh with the front and rear articulated gears. It should be noted that the articulated gears can be half gears or full gears. In the case of half gears, when the second drive rack and the first drive rack disengage from the front and rear articulated gears, the rotation reaches its limit, but at the same time, the leg continues to retract. In the case of full gears, when the leg is completely retracted into the leg sleeve, the rotation of the leg sleeve reaches its limit position at the same time.

[0017] Furthermore, the telescopic mechanism includes a drive end, which is disposed through the leg sleeve, and one end of the drive end is rotatable on the inner wall of the machine body. The front and rear drive ends are respectively connected to the second upper toothed plate and the first upper toothed plate for transmission.

[0018] It also includes a displacement end, which is disposed inside the leg sleeve. One end of the displacement end is connected to the inner end of the leg support, and the other end of the displacement end is fixedly connected to the drive end.

[0019] Furthermore, the drive end includes a rotating shaft that passes through a circular hole in the leg sleeve, a retraction pull rope is provided on the rotating shaft, the rotating shaft includes a fixed end, a movable end is sleeved on the fixed end, the movable end has a 90-degree free rotation margin on the fixed end, a rotating shaft gear is provided on the movable end, and the rotating shaft gears on the front and rear sides respectively mesh with the second upper gear plate and the first upper gear plate.

[0020] Furthermore, the telescopic mechanism includes a linkage bar, and the rotating shaft gear is fixedly connected to the linkage bar by a retractable pull rope. A limit block is provided through the linkage bar, and one end of the limit block is fixedly connected to the inner wall of the leg sleeve. One end of the linkage bar is hinged to a pull lug, and one end of the pull lug is fixedly connected to a spring strip. Both ends of the spring strip are provided with locking points, and the locking points are engaged in the locking slots provided on the inner wall of the leg sleeve.

[0021] Furthermore, the telescopic mechanism includes a stop plate, which has an opening for the pull lug to pass through. Guide feet are fixedly connected to both sides of the stop plate, and one end of each guide foot rests on the outer surface of the spring strip.

[0022] Furthermore, the inner wall of the leg sleeve is provided with an embedded cable routing plate. The embedded cable routing plate is used to house the wiring circuitry within the embedded cable routing plate.

[0023] Furthermore, the slide rail is provided with a limiting rail, and both the second drive rack and the first drive rack are provided with a moving groove fitted with the limiting rail on one side.

[0024] This utility model has the following beneficial effects:

[0025] 1. The narrow end of the fuselage is the forward direction end, and the wide end is the tail end. This design is adapted so that the airflow generated during the forward movement of the UAV can always be diverted to both sides when adjusting its attitude. The drive spiral at the wide end is located outside the drive spiral at the narrow end. The resulting dispersed airflow is just dispersed by the rotating airflow generated by the drive spiral, forming a smaller turbulence phenomenon, which facilitates the formation of a stable flight state.

[0026] 2. The wide-end leg sleeve and the leg support have a certain angle, with the optimal angle between 150 and 180 degrees. This ensures that the angle between the leg sleeve and the leg support in the forward direction is greater than 180 degrees. This creates a rearward airflow guide surface from the leg sleeve to the leg support, reducing air resistance during flight. The leg support can slide within the leg sleeve. During extension and retraction, the leg sleeve can rotate a certain angle through the hinged gear under the action of the drive device. This allows for quick switching between the leg sleeve and the leg support in an accelerated flight state during the adjustment of the motion acceleration state.

[0027] 3. The two ends of the spring bar are retracted, the middle section of the spring bar is squeezed, and the locking points on both sides are separated from the inner wall of the leg sleeve. When the locking points contact the sides of the leg support, they are restricted, which in turn can drive the baffle plate to pull the leg support into the leg sleeve. This allows the leg sleeve to be rotated to a suitable position, and the leg support is retracted. This allows the flight to be carried out according to the flight environment, such as in narrow gaps. Attached Figure Description

[0028] Figure 1 This is a perspective view of the present invention;

[0029] Figure 2 This is a bottom view of the present invention;

[0030] Figure 3 This is a sectional view of the present invention;

[0031] Figure 4 This is a cross-sectional view of the present invention;

[0032] Figure 5 This is a utility model Figure 3 Enlarged view of point A in the middle.

[0033] In the picture:

[0034] 1. Airframe; 11. Recovery Tank 1; 12. Recovery Tank 2; 2. Wing Frame; 21. Leg Cover; 211. Articulated Gear; 22. Leg Support; 3. Drive Screw; 4. Drive Unit; 41. Slide Rail; 42. Synchronous Electric Push Rod; 43. First Drive Rack; 44. First Upper Gear Plate; 45. Second Drive Rack; 46. Second Upper Gear Plate; 5. Telescopic Mechanism; 51. Rotating Shaft Gear; 52. Linkage Bar; 53. Limiting Block; 54. Pulling Lug; 55. Spring Bar; 56. Locking Point; 57. Stop Plate; 58. Guide Foot; 59. Embedded Cable Management Board. Detailed Implementation

[0035] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] Reference Figures 1 to 5 The attached retractable drone shown includes:

[0037] The fuselage 1 and the wing frame 2, there are four wing frames 2, and the four wing frames 2 are movably arranged on the four sides of the fuselage 1. The wing frames 2 can be extended and retracted when rotating along the length of the fuselage 1.

[0038] Drive screw 3 is fixedly connected to the tail end of wing frame 2;

[0039] Drive device 4 is fixedly installed in the inner cavity of the fuselage 1 and is used to drive the wing frame 2 to rotate.

[0040] The telescopic mechanism 5 has one end located in the inner cavity of the wing frame 2 and the other end located in the inner cavity of the fuselage 1, and is connected to the drive device 4 for transmission.

[0041] The body 1 includes a narrow end and a wide end. The narrow end is provided with two recycling slots 12, and the wide end is provided with two recycling slots 11.

[0042] The four wing frames are arranged in pairs and are movably installed in two recovery troughs 11 and two recovery troughs 12 respectively.

[0043] The narrow end of the body 1 is the forward direction end, and the wide end is the tail end. This design is adapted so that the UAV can always divert the airflow generated during forward movement to both sides when adjusting its attitude. The drive spiral 3 set at the wide end is located outside the drive spiral 3 at the narrow end. The dispersed airflow is just dispersed by the rotating airflow generated by the drive spiral 3, forming a smaller turbulence phenomenon, which is conducive to forming a stable flight state.

[0044] It should be noted that there is a certain angle between the wide-end leg sleeve 21 and the leg support 22. The optimal angle is between 150 degrees and 180 degrees. In this way, the angle between the leg sleeve 21 and the leg support 22 in the forward direction is greater than 180 degrees. This way, the guide surface from the leg sleeve 21 to the leg support 22 forms a rearward guide surface, which reduces air resistance during flight.

[0045] It is important to note that, even at a 150-degree angle, the leg support 22 still retracts into the space inside the leg sleeve 21.

[0046] The wing frame 2 includes a leg sleeve 21, which is rotatably mounted inside the fuselage 1. A leg support 22 is fitted inside the leg sleeve 21, and a hinged gear 211 is provided inside the leg sleeve 21 located in the fuselage 1.

[0047] It should be noted that the leg support 22 can slide inside the leg sleeve 21. When the extension and retraction conditions are met, the leg sleeve 21 can be rotated at a certain angle by the hinge gear 211 under the action of the drive device 4. This allows the leg sleeve 21 and the leg support 22 to quickly switch to the accelerated flight state during the process of adjusting the motion acceleration state.

[0048] The drive device 4 includes a slide rail 41 arranged along the length of the inner cavity of the body 1. A second drive rack 45 and a first drive rack 43 are slidably arranged at both ends of the slide rail 41. A second upper toothed plate 46 and a first upper toothed plate 44 are fixedly connected to the second drive rack 45 and the first drive rack 43, respectively.

[0049] It also includes a synchronous electric push rod 42 fixedly connected to the middle of the slide rail 41. The synchronous electric push rod 42 has two telescopic ends, which are fixedly connected to the opposite side of the first drive rack 43 and the second drive rack 45, respectively.

[0050] The second drive rack 45 and the first drive rack 43 respectively mesh with the front and rear articulated gears 211. It should be noted that the articulated gears 211 can be half gears or full gears. In the case of half gears, when the second drive rack 45 and the first drive rack 43 disengage from the front and rear articulated gears 211, the rotation reaches its limit, but at the same time, the leg support 22 continues to retract. In the case of full gears, when the leg support 22 is completely retracted into the leg sleeve 21, the rotation of the leg sleeve 21 reaches its limit position at the same time.

[0051] During the telescopic adjustment, the two piston ends of the synchronous electric push rod 42 retract synchronously. At this time, the second drive rack 45 and the first drive rack 43 cause the hinge gears 211 on both sides to rotate synchronously, and the leg sleeves 21 at both ends rotate and retract inward in the length direction of the body 1. At the same time, the second upper gear plate 46 and the first upper gear plate 44 cause the rotating shaft gear 51 to rotate simultaneously. At this time, the leg support 22 retracts into the leg sleeve 21.

[0052] The telescopic mechanism 5 includes a drive end, which is disposed through the leg sleeve 21, and one end of the drive end is rotatable on the inner wall of the body 1. The front and rear drive ends are respectively connected to the second upper toothed plate 46 and the first upper toothed plate 44 for transmission.

[0053] It also includes a displacement end, which is set inside the leg sleeve 21. One end of the displacement end is connected to the inner end of the leg support 22, and the other end of the displacement end is fixedly connected to the drive end.

[0054] The drive end includes a rotating shaft that passes through a circular hole in the leg sleeve 21. A retraction pull rope is provided on the rotating shaft. The rotating shaft includes a fixed end and a movable end is sleeved on the fixed end. The movable end has a 90-degree free rotation margin at the fixed end. A rotating shaft gear 51 is provided on the movable end. The rotating shaft gears 51 on the front and rear sides respectively mesh with the second upper gear plate 46 and the first upper gear plate 44.

[0055] The fixed end of the rotating shaft has a limit block, and the movable end has a rotating cavity. The limit block rotates within the 90-degree rotating cavity of the rotating cavity. This allows for a rotational margin after rotation, which helps the pulled spring bar 55 return to its original position. This allows the locking point 56 to return to its taut state, thus ensuring that it remains locked in the retracted position. In addition, the synchronous electric push rod 42 can retract a certain distance after adjustment to ensure that the spring bar 55 returns to its original position.

[0056] The telescopic mechanism 5 includes a linkage bar 52. The rotating shaft gear 51 is fixedly connected to the linkage bar 52 by a retractable pull rope. A limit block 53 is installed through the linkage bar 52. One end of the limit block 53 is fixedly connected to the inner wall of the leg sleeve 21. One end of the linkage bar 52 is hinged to a pull lug 54. One end of the pull lug 54 is fixedly connected to a spring strip 55. Both ends of the spring strip 55 are provided with locking points 56, which are engaged in the locking slots provided on the inner wall of the leg sleeve 21.

[0057] The telescopic mechanism 5 includes a stop plate 57, which has an opening for the pull lug 54 to pass through. Guide feet 58 are fixedly connected to both sides of the stop plate 57, and one end of the guide foot 58 is attached to the outer surface of the spring strip 55.

[0058] The telescopic mechanism 5 is explained as follows: Since the rotating shaft gear 51 is driven to rotate by the second upper gear plate 46 and the first upper gear plate 44, the retraction rope on the rotating shaft gear 51 can be pulled, thereby retracting the rope and causing the linkage bar 52 to move inward. The limiting block 53 restricts the range of movement of the linkage bar 52, keeping it in a straight movement state, ensuring that the leg support 22 can move inward. At this time, the spring bar 55 moves inward from inside the baffle plate 57. Under the restriction of the two guide feet 58, the two ends of the spring bar 55 are retracted, the middle section of the spring bar 55 is squeezed, and the locking points 56 on both sides are separated from the inner wall of the leg sleeve 21. When the locking points 56 contact the two sides of the leg support 22 and are restricted, the baffle plate 57 can be driven to pull the leg support 22 into the leg sleeve 21. This allows the leg sleeve 21 to be rotated to a suitable posture, and the leg support 22 is retracted. This allows the flight to be carried out according to the flight environment, such as in a narrow gap.

[0059] The inner wall of the leg sleeve 21 is provided with an embedded cable tray 59. The embedded cable tray 59 is used to house the cable routing circuit. The slide rail 41 is provided with a limit rail. The second drive rack 45 and the first drive rack 43 are both provided with a moving groove fitted with the limit rail on one side.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A retractable drone with an accessory, characterized in that, include: Body (1); The number of the four wing frames (2) is four, and the four wing frames (2) are movably arranged on the four sides of the fuselage (1). The wing frames (2) can be extended and retracted when rotating along the length direction of the fuselage (1). Drive screw (3), which is fixedly connected to the tail end of the wing frame (2); A drive device (4) is fixedly installed in the inner cavity of the fuselage (1) and is used to drive the wing frame (2) to rotate. Telescopic mechanism (5), one end of which is located in the inner cavity of the wing frame (2), and the other end of which is located in the inner cavity of the body (1) and is connected to the drive device (4) for transmission.

2. The retractable drone accessory according to claim 1, characterized in that, The body (1) includes a narrow end and a wide end. The narrow end is provided with two recycling slots (12), and the wide end is provided with two recycling slots (11). The four wing frames (2) are arranged in pairs and are movably installed in the two recovery slots (11) and the two recovery slots (12).

3. The retractable drone accessory according to claim 2, characterized in that, The wing frame (2) includes a leg sleeve (21), which is rotatably disposed inside the fuselage (1). A leg support (22) is fitted inside the leg sleeve (21), and a hinged gear (211) is provided inside the leg sleeve (21).

4. The retractable drone accessory according to claim 3, characterized in that, The drive device (4) includes a slide rail (41) arranged along the length direction in the inner cavity of the body (1). A second drive rack (45) and a first drive rack (43) are slidably arranged at both ends of the slide rail (41). A second upper toothed plate (46) and a first upper toothed plate (44) are fixedly connected to the second drive rack (45) and the first drive rack (43), respectively. It also includes a synchronous electric push rod (42) fixedly connected to the middle of the slide rail (41). The synchronous electric push rod (42) has two telescopic ends, which are fixedly connected to the opposite side of the first drive rack (43) and the second drive rack (45), respectively.

5. The retractable drone accessory according to claim 4, characterized in that, The telescopic mechanism (5) includes a drive end, which is disposed through the leg sleeve (21), and one end of the drive end is rotatable on the inner wall of the body (1). The front and rear drive ends are respectively connected to the second upper toothed plate (46) and the first upper toothed plate (44). It also includes a displacement end, which is disposed inside the leg sleeve (21). One end of the displacement end is connected to the inner end of the leg support (22), and the other end of the displacement end is fixedly connected to the drive end.

6. The retractable drone accessory according to claim 5, characterized in that, The drive end includes a rotating shaft that passes through a circular hole in the leg sleeve (21). A retraction pull rope is provided on the rotating shaft. The rotating shaft includes a fixed end and a movable end is sleeved on the fixed end. The movable end has a 90-degree free rotation margin on the fixed end. A rotating shaft gear (51) is provided on the movable end. The rotating shaft gears (51) on the front and rear sides mesh with the second upper gear plate (46) and the first upper gear plate (44) respectively.

7. A retractable drone accessory according to claim 6, characterized in that, The telescopic mechanism (5) includes a linkage bar (52), and the rotating shaft gear (51) is fixedly connected to the linkage bar (52) by a retractable pull rope. A limit block (53) is provided through the linkage bar (52). One end of the limit block (53) is fixedly connected to the inner wall of the leg sleeve (21). One end of the linkage bar (52) is hinged with a pull lug (54). One end of the pull lug (54) is fixedly connected with a spring strip (55). Both ends of the spring strip (55) are provided with locking points (56). The locking points (56) are locked into the locking slots provided on the inner wall of the leg sleeve (21).

8. A retractable drone accessory according to claim 7, characterized in that, The telescopic mechanism (5) includes a baffle plate (57), which has an opening that allows the pull lug (54) to pass through. Guide feet (58) are fixedly connected to both sides of the baffle plate (57), and one end of the guide foot (58) overlaps the outer surface of the spring strip (55).

9. A retractable drone accessory according to claim 8, characterized in that, The inner wall of the leg sleeve (21) is provided with an embedded wiring plate (59).

10. A retractable drone accessory according to claim 9, characterized in that, The slide rail (41) is provided with a limiting rail, and the second drive rack (45) and the first drive rack (43) are each provided with a moving groove fitted with the limiting rail on one side.

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