Foldable unmanned aerial vehicle arm

Abstract

A foldable unmanned aerial vehicle arm relates to the technical field of unmanned aerial vehicles and comprises a fixed arm fixed on an unmanned aerial vehicle body, a turnover arm is hinged to the fixed arm, a first external threaded pipe is fixed to one end, close to the turnover arm, of the fixed arm, and a second external threaded pipe is fixed to one section, close to the fixed arm, of the turnover arm. The fixing arm is sleeved with an inner threaded pipe, and the inner threaded pipe is in threaded connection with the first outer threaded pipe and the second outer threaded pipe. The technical problem that an unmanned aerial vehicle arm is troublesome to fold is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a foldable UAV arm. Background Art

[0002] With the development of science and technology, drones have gradually penetrated into all aspects of our lives, bringing much more convenience to our daily lives and work. For example, fire-fighting drones and agricultural drones are relatively large in size. In order to facilitate storage, the drone arms are set into a foldable structure. For example, patent No. 202411231731.7 discloses a foldable drone arm using two sets of threaded parts connected to each other. In the process of folding the drone arm, the two sets of threaded parts need to be adjusted, which makes the installation more troublesome. Summary of the Invention

[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose a foldable drone arm to solve the above problems.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] The present invention provides a foldable drone arm, comprising a fixed arm fixed to a drone body, a flip arm hinged on the fixed arm, a first externally threaded tube fixed to one end of the fixed arm close to the flip arm, a second externally threaded tube fixed to a section of the flip arm close to the fixed arm, an internally threaded tube sleeved on the fixed arm, and the internally threaded tube threadedly connected to the first externally threaded tube and the second externally threaded tube.

[0006] Optionally, a pair of hinged ears are fixed on the first externally threaded tube near the second externally threaded tube, a hinged plate is fixed on one end of the second externally threaded tube near the first externally threaded tube, and a rotating shaft for rotationally connecting the hinged ears is fixed on the hinged plate.

[0007] Optionally, a limiting protrusion is fixed on the upper side of the hinge plate, and a limiting groove is provided on the first externally threaded tube; the limiting protrusion is snapped into the limiting groove to make the first externally threaded tube and the second externally threaded tube in a straight line.

[0008] Optionally, a fixing seat connected to the drone body is fixed to one end of the fixing arm away from the flip arm.

[0009] Optionally, a propeller assembly is installed on a section of the flip arm away from the fixed arm.

[0010] Optionally, a protective cover for protecting the propeller is installed on the propeller assembly.

[0011] Optionally, the internally threaded tube is slidably connected to the fixed arm.

[0012] The beneficial effects of the present invention are:

[0013] A foldable drone arm. When the drone arm is unfolded, the fixed arm and the flip arm are aligned, and the internally threaded tube is rotated to threadably connect the internally threaded tube to the first externally threaded tube and the second externally threaded tube. The drone arm is now in the unfolded state. When the drone finishes working, the internally threaded tube is rotated so that the first externally threaded tube and the second externally threaded tube can rotate relative to each other. The drone arm can then be folded, thereby reducing the drone's footprint and facilitating storage in a warehouse.

[0014] During the folding process of the drone arm, it is only necessary to align the first external threaded tube and the second external threaded tube and then rotate the internal threaded tube to complete the folding process, so the folding is more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a foldable drone arm of the present invention;

[0016] Figure 2 This is a schematic diagram of the explosion structure of a foldable drone arm of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the second externally threaded tube of a foldable drone arm of the present invention;

[0018] Figure 4 This is a schematic diagram of the first externally threaded tube structure of a foldable drone arm of the present invention.

[0019] Reference numerals in the figures:

[0020] 1. Fixed arm; 11. Fixed seat; 2. Flip arm; 21. Propeller assembly; 22. Protective cover; 3. First externally threaded tube; 31. Articulated ear; 32. Limiting groove; 4. Second externally threaded tube; 41. Articulated plate; 42. Rotating shaft; 43. Limiting protrusion; 5. Internally threaded tube. DETAILED DESCRIPTION

[0021] The following is combined with Figures 1 to 4 The technical solution of the present invention is further illustrated through specific implementation methods.

[0022] like Figures 1 to 2 As shown, a foldable drone arm provided in this embodiment comprises a fixed arm 1 fixed to the drone body, a flip arm 2 being hingedly connected to the fixed arm 1, a first externally threaded tube 3 being fixed to one end of the fixed arm 1 close to the flip arm 2, a second externally threaded tube 4 being fixed to a section of the flip arm 2 close to the fixed arm 1, an internally threaded tube 5 being sleeved on the fixed arm 1, and the internally threaded tube 5 being threadedly connected to the first externally threaded tube 3 and the second externally threaded tube 4;

[0023] Place the fixed arm 1 and the flip arm 2 in a straight line, rotate the internal threaded tube 5, and thread the internal threaded tube 5 onto the first external threaded tube 3 and the second external threaded tube 4. At this time, the drone arm is in the unfolded state. When the drone finishes working, rotate the internal threaded tube 5 so that the first external threaded tube 3 and the second external threaded tube 4 can rotate relative to each other. At this time, the drone arm can be folded, making the folding and unfolding of the drone arm more convenient and quick.

[0024] Reference Figure 2 、 Figure 3 、 Figure 4 A pair of hinged ears 31 are fixed on the first externally threaded tube 3 near the second externally threaded tube 4, and a hinged plate 41 is fixed on one end of the second externally threaded tube 4 near the first externally threaded tube 3. A rotating shaft 42 for rotating connection of the hinged ears 31 is fixed on the hinged plate 41. The end of the hinged ear 31 near the second externally threaded tube 4 is an arc-shaped structure, and the end of the intersection plate 41 near the first externally threaded tube 3 is an arc-shaped structure, so it is convenient to flip between the first externally threaded tube 3 and the second externally threaded tube 4.

[0025] Reference Figure 2 、 Figure 3 、 Figure 4 A limiting protrusion 43 is fixed on the upper side of the hinge plate 41, and a limiting groove 32 is provided on the first externally threaded tube 3; the limiting protrusion 43 is engaged in the limiting groove 32, so as to make the first externally threaded tube 3 and the second externally threaded tube 4 in a straight line; when the second externally threaded tube 4 is turned upward, the limiting protrusion 43 is engaged in the limiting groove 32, which can quickly connect the first externally threaded tube 3 and the second externally threaded tube 4 into a straight line;

[0026] The upper side of the limiting protrusion 43 is an arc-shaped structure, and the lower side is a planar structure. When the limiting protrusion 43 is clamped in the limiting groove 32 to form a cylindrical structure with the first externally threaded tube 3, it is convenient for the internally threaded tube 5 to lock the first externally threaded tube 3 and the second externally threaded tube 4 together to form a stable machine arm.

[0027] Reference Figure 1 A fixing seat 11 connected to the drone body is fixed to one end of the fixed arm 1 away from the flip arm 2, so as to facilitate the quick installation of the fixed arm 1 on the drone body.

[0028] Reference Figure 1 A propeller assembly 21 is installed on a section of the flip arm 2 away from the fixed arm 1, and a protective cover 22 for protecting the propeller is installed on the propeller assembly 21.

[0029] Reference Figure 1 、 Figure 2 The internal threaded tube 5 is slidably connected to the fixed arm 1 to facilitate the movement of the internal threaded tube 5.

[0030] The present invention is described through preferred embodiments. Those skilled in the art will appreciate that various modifications or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A foldable drone arm, characterized by: A fixed arm (1) is fixed on an unmanned aerial vehicle body, a flip arm (2) is hinged on the fixed arm (1), a first externally threaded tube (3) is fixed to one end of the fixed arm (1) close to the flip arm (2), a second externally threaded tube (4) is fixed to a section of the flip arm (2) close to the fixed arm (1), an internally threaded tube (5) is sleeved on the fixed arm (1), the internally threaded tube (5) is threadedly connected to the first externally threaded tube (3) and the second externally threaded tube (4); a pair of hinged ears (31) are fixed to the first externally threaded tube (3) close to the second externally threaded tube (4), A hinge plate (41) is fixed to one end of the second externally threaded tube (4) close to the first externally threaded tube (3), and a rotating shaft (42) for rotatably connecting the hinge ear (31) is fixed to the hinge plate (41); a limiting protrusion (43) is fixed on the upper side of the hinge plate (41). A limiting groove (32) is provided on the first externally threaded tube (3); the limiting protrusion (43) is engaged in the limiting groove (32) to ensure that the first externally threaded tube (3) and the second externally threaded tube (4) are aligned in a straight line.

2. The foldable drone arm according to claim 1, characterized in that: A fixing seat (11) connected to the drone body is fixed to one end of the fixing arm (1) away from the flip arm (2).

3. The foldable drone arm according to claim 1, characterized in that: A propeller assembly (21) is installed on a section of the flip arm (2) away from the fixed arm (1).

4. The foldable drone arm according to claim 3, characterized in that: A protective cover (22) for protecting the propeller is installed on the propeller assembly (21).

5. The foldable drone arm according to claim 3, characterized in that: The internally threaded tube (5) is slidably connected to the fixed arm (1).

Images