Unmanned aerial vehicle folding arm capable of suppressing vacancy and unmanned aerial vehicle comprising same

Abstract

The utility model relates to an unmanned aerial vehicle folding arm capable of suppressing a clearance and an unmanned aerial vehicle comprising the unmanned aerial vehicle folding arm, and belongs to the technical field of unmanned aerial vehicle structures, the unmanned aerial vehicle folding arm comprises a mounting rack, and an arm assembly capable of suppressing the clearance is mounted on the outer side of the mounting rack; the machine arm assembly comprises a limiting pin, a first pin shaft, a threaded rod, two jack retaining screws, an elastic piece, a second pin shaft, a machine arm body, two fixing screws, a torsional spring and a limiting wrench. The outer side of the mounting rack is provided with an elliptical hole allowing the limiting pin to be inserted and move, the arm body is hinged to the outer side of the mounting rack through a first pin shaft, the limiting wrench is hinged to the top of the arm body through a second pin shaft, and the torsional spring is fixedly mounted between the limiting wrench and the outer side of the second pin shaft. According to the unmanned aerial vehicle folding arm capable of suppressing the vacancy and the unmanned aerial vehicle comprising the unmanned aerial vehicle folding arm, the vacancy generated after the folding arm is used for a long time can be actively suppressed, so that the stability of the arm is not excessively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of UAV structures, in particular to a folding arm of a UAV capable of suppressing virtual positions and a UAV including the folding arm. Background Art

[0002] An unmanned aerial vehicle, abbreviated as "UAV", is an unpiloted aircraft controlled by a radio remote control device and a self - contained program control device, or is completely or intermittently autonomously operated by an on - vehicle computer. With the continuous improvement of the scientific and technological level, more and more industries use civilian UAVs for auxiliary work.

[0003] For large UAVs, they cannot be conveniently stored like small UAVs when not in use. Therefore, there is a type of UAV on the existing market with folding arms, which can reduce its floor area by folding, making it convenient for storage. Most of the existing folding arms are positioned by a limit clamping structure. After using for a period of time, this kind of structure is prone to wear of the clamping structure, resulting in a certain amount of virtual position in the unfolded state of the arm, making it easy to shake, and affecting the overall stability of the UAV. In response to this, through the suppression of virtual positions, the present application provides a folding arm of a UAV capable of suppressing virtual positions and a UAV including the folding arm to solve the above problems. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a folding arm of a UAV capable of suppressing virtual positions and a UAV including the folding arm, which has the advantages of being able to actively suppress the virtual positions generated after long - term use of the folding arm, and through adaptive adjustment of the structure, the stability of the arm will not be reduced too much. It solves the problem that after the existing folding arm of the UAV is used for a long time, its clamping structure is prone to cause the stability of the arm to decline due to virtual positions, thus affecting the overall structural stability of the UAV.

[0006] (2) Technical Solutions

[0007] To achieve the purpose of actively suppressing the virtual positions generated after long - term use of the folding arm and through adaptive adjustment of the structure, so that the stability of the arm will not be reduced too much, the utility model provides the following technical solutions: a folding arm of a UAV capable of suppressing virtual positions, including a mounting frame, and an arm assembly capable of suppressing virtual positions is installed on the outside of the mounting frame;

[0008] The arm assembly includes a limit pin, a first pin shaft, a threaded rod, two jack stop screws, an elastic member, a second pin shaft, an arm main body, two fixing screws, a torsion spring, and a limit wrench; an oval hole for inserting and moving the limit pin is formed on the outer side of the mounting frame.

[0009] The arm main body is hinged to the outer side of the mounting frame through the first pin shaft, the limit wrench is hinged to the top of the arm main body through the second pin shaft, and the torsion spring is fixedly installed between the outer sides of the limit wrench and the second pin shaft.

[0010] The elastic member is fixed to the inner side of the mounting frame and is arranged toward the side close to the arm main body, and an internal threaded hole corresponding to the position of the elastic member and for threaded connection of the threaded rod is formed on the inner side of the mounting frame.

[0011] Further, a joint end face is provided on one side of the arm main body close to the mounting frame, an inner side end face is provided on the inner side of the mounting frame, a water guide boss is fixed on the side of the inner side end face close to the arm main body, a semi-circular water guide groove is formed at the top of the inner side end face, and two water outlet holes respectively communicating with the inside of the semi-circular water guide groove are formed on the outer side of the mounting frame.

[0012] Further, a U-shaped mounting member is fixed on the side of the mounting frame close to the arm main body, the U-shaped mounting member is composed of two U-shaped blocks and a square block, and the two U-shaped blocks are symmetrically distributed.

[0013] Further, the oval hole is formed on the outer side of the U-shaped block, and the inner side of the oval hole is attached to the outer side of the limit pin.

[0014] Further, a jack screw hole for threaded connection of the corresponding jack stop screw and communicating with the inside of the corresponding oval hole is formed on the side of the U-shaped block close to the arm main body, the end of the jack stop screw can abut against the outer side of the limit pin, and the side of the bottom of the U-shaped block close to the arm main body is arc-shaped.

[0015] Further, two mounting holes for threaded connection of two fixing screws respectively are formed on the outer side of the arm main body.

[0016] Further, the other end of the elastic member abuts against the outer side of the limit pin, and a round hole for the threaded rod to pass through is formed on the outer side of the limit pin.

[0017] Further, the end of the threaded rod sequentially passes through the round hole and the inside of the elastic member and is threadedly connected to the inner side of the internal threaded hole, the side of the limit wrench close to the limit pin is arc-shaped, and the outer shape is hook-shaped.

[0018] A drone including this arm has a foldable drone arm capable of suppressing play as described in any one of the above.

[0019] (3) Beneficial effects

[0020] Compared with the prior art, the utility model provides a folding drone arm capable of suppressing play and a drone including the arm, having the following beneficial effects:

[0021] The folding drone arm capable of suppressing play and the drone including the arm can actively suppress the play generated after long-term use of the folding arm through the cooperation between the arm assembly and the mounting rack. By adaptively adjusting the structure, the stability of the arm will not be reduced too much. When there is a gap, the position of the limiting structure is adjusted through the adjusting structure, so that the position of the limiting structure can be adjusted to a position where it can stably limit, thereby eliminating the gap, so that the arm can remain stable after being unfolded and clamped, and the overall stability of the drone will not be reduced too much. At the same time, the practicability of the folding arm is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the utility model;

[0023] Figure 2 is the structural Figure 1 explosion schematic diagram of the utility model;

[0024] Figure 3 is the structural Figure 1 folding schematic diagram of the utility model;

[0025] Figure 4 is the structural Figure 3 right view schematic diagram of the utility model;

[0026] Figure 5 is the structural Figure 1 schematic diagram of the connection structure of the mounting rack in the utility model;

[0027] Figure 6 is the structural Figure 5 top view schematic diagram of the utility model.

[0028] In the figure: 100 arm assembly, 101 arm main body, 102 joint end face, 103 limit wrench, 104 torsion spring, 105 second pin shaft, 106 fixing screw, 200 mounting rack, 201 inner end face, 202 water guide boss, 203 semi-circular water guide groove, 204 water outlet hole, 205 limit pin, 206 oval hole, 207 first pin shaft, 208 threaded rod, 209 elastic member, 210 internal thread hole, 211 jack anti-back-off screw, 212 jack screw hole. DETAILED DESCRIPTION OF THE INVENTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Please refer to Figures 1 to 6 , the present utility model provides a technical solution: a folding drone arm capable of suppressing play, including an installation frame 200, and an arm assembly 100 capable of suppressing play is installed on the outer side of the installation frame 200; through the combined use of the arm assembly 100 and the installation frame 200, it is possible to actively suppress the play generated after the folding arm is used for a long time. By adaptively adjusting the structure, the stability of the arm will not be reduced too much. When there is a gap, by adjusting the structure to adjust the position of the limiting structure, the position of the limiting structure can be adjusted to a position where it can stably limit, so as to eliminate the gap, so that the arm can remain stable after being unfolded and clamped, and the overall stability of the drone will not be reduced too much due to this, and at the same time, the practicability of the folding arm is greatly improved.

[0031] In this embodiment, the arm assembly 100 is a structure for actively suppressing the play generated after the arm structure is used for a long time.

[0032] As Figure 1 , Figure 2 and Figure 3 shown, the arm assembly 100 includes a limit pin 205, a first pin shaft 207, a threaded rod 208, two jack stop screws 211, an elastic member 209, a second pin shaft 105, an arm main body 101, two fixing screws 106, a torsion spring 104, and a limit wrench 103; an oval hole 206 for the limit pin 205 to be inserted and move is opened on the outer side of the installation frame 200;

[0033] The arm main body 101 is hinged to the outer side of the installation frame 200 through the first pin shaft 207, the limit wrench 103 is hinged to the top of the arm main body 101 through the second pin shaft 105, and the torsion spring 104 is fixedly installed between the outer sides of the limit wrench 103 and the second pin shaft 105;

[0034] The elastic member 209 is fixed to the inner side of the installation frame 200 and is arranged toward the side close to the arm main body 101, and an internal threaded hole 210 corresponding to the position of the elastic member 209 and for the threaded rod 208 to be threadedly connected is opened on the inner side of the installation frame 200.

[0035] It should be noted that a U-shaped mounting member is fixed on the side of the mounting frame 200 close to the arm main body 101. The U-shaped mounting member is composed of two U-shaped blocks and a square block. The two U-shaped blocks are symmetrically distributed. The elliptical hole 206 is opened on the outer side of the U-shaped block, and the inner side of the elliptical hole 206 is in contact with the outer side of the limit pin 205. A jack screw hole 212 for the corresponding jack check screw 211 to be threadedly connected and communicating with the inside of the corresponding elliptical hole 206 is opened on the side of the U-shaped block close to the arm main body 101. The end of the jack check screw 211 can abut against the outer side of the limit pin 205, so that the end of the jack check screw 211 can be abutted by the limit pin 205, thereby playing a role in preventing the limit pin 205 from moving back.

[0036] At the same time, the bottom of the U-shaped block is arc-shaped on the side close to the arm main body 101, so that the arm main body 101 can rotate between the opposite sides of the two U-shaped blocks through the first pin shaft 207. Among them, the outer structure of the arm main body 101 will not collide with the U-shaped block during the rotation process.

[0037] In addition, two mounting holes for the two fixing screws 106 to be threadedly connected are opened on the outer side of the arm main body 101. Through the cooperation between the screw and the mounting hole, the arm main body 101 and the arm rod of the drone can be connected. Among them, the arm main body 101 is a transitional connection structure connecting the drone arm and the mounting frame 200.

[0038] In addition, the other end of the elastic member 209 abuts against the outer side of the limit pin 205. A circular hole for the threaded rod 208 to pass through is opened on the outer side of the limit pin 205. The end of the threaded rod 208 sequentially passes through the circular hole and the inside of the elastic member 209 and is threadedly connected with the inner side of the internal thread hole 210. By rotating the threaded rod 208, the position of the limit pin 205 can be advanced through the end, so that the limit pin 205 can compress the elastic member 209. Through the elastic restoring force of the elastic member 209, the outer thread of the threaded rod 208 can be stably threadedly connected with the inner side of the internal thread hole 210, thereby restricting the position of the limit pin 205. At the same time, in cooperation with the use of the above-mentioned jack check screw 211, the position of the limit pin 205 can be kept stable, so that it can stably lock the limit wrench 103, realizing the function of suppressing the virtual position after adjustment, and the maximum adjustable size for eliminating the clearance virtual position depends on the actual length of the elliptical hole 206. Among them, the elastic member 209 can be a spring.

[0039] It should also be noted that one side of the limit wrench 103 close to the limit pin 205 is arc-shaped and its outer shape is hook-shaped, so that the limit wrench 103 can hook the outside of the limit pin 205 through the hook-shaped structure. Thus, the limit pin 205 plays a role in limiting the limit wrench 103. After the limit wrench 103 is limited by the limit pin 205, when the arm main body 101 rotates, the hook-shaped structure of the limit wrench 103 will be blocked and restricted by the limit pin 205, making the arm main body 101 unable to rotate, playing a role in limiting.

[0040] As Figure 4 、 Figure 5 and Figure 6 shown, in addition, a combined end face 102 is provided on one side of the arm main body 101 close to the mounting frame 200. An inner end face 201 is provided inside the mounting frame 200. A water guide boss 202 is fixed on one side of the inner end face 201 close to the arm main body 101. A semi-circular water guide groove 203 is opened at the top of the inner end face 201. Two water outlet holes 204 communicating with the inside of the semi-circular water guide groove 203 are opened on the outside of the mounting frame 200. Specifically, when the arm assembly 100 is combined with the mounting frame 200 and locked and fastened by the limit wrench 103 and the limit pin 205, the combined end face 102 can be combined with the end face of the water guide boss 202 to form a gap in the shape of an eight-character that can drain water. The size of this gap is the protruding size of the water guide boss 202. When it rains, the water above will enter the inside of the semi-circular water guide groove 203 and be discharged through the water outlet holes 204. When the water volume is large, the rainwater overflows from the inside of the semi-circular water guide groove 203. The overflowing water is guided through an eight-character gap formed by the combination of the combined end face 102 and the end face of the water guide boss 202, and can be guided to both sides for discharge, thus preventing rainwater from entering the inside of the drone arm tube.

[0041] The present invention also provides a drone including this arm, having the drone folding arm capable of suppressing play as described in any one of the above embodiments.

[0042] The working principle of the above embodiment is:

[0043] When folding the arm, turn the limit wrench 103 upward to deform the torsion spring 104, so that the limit pin 205 loses the limit clamping of the limit wrench 103. Rotate the arm body 101 to rotate around the first pin shaft 207 to complete folding or unfolding. After the adjustment is completed, release the limit wrench 103, and it will be re-limited and clamped outside the limit pin 205 under the elastic recovery of the torsion spring 104. When there is a virtual position after long-term use, rotate the threaded rod 208 to drive the elastic member 209 to compress through the limit pin 205. Under the elastic pushing of the elastic member 209, the outer thread of the threaded rod 208 can be tightly connected to ensure the position of the limit pin 205. Turn the jack stop screw 211 so that its end abuts against the outside of the limit pin 205, thereby preventing the limit pin 205 from retracting, enabling the limit pin 205 to stably clamp and limit the limit wrench 103, and further enabling the arm body 101 to maintain stability when unfolded and clamped, and effectively suppressing the virtual position generated by the clamping wear between the limit wrench 103 and the limit pin 205.

[0044] Compared with the prior art, the foldable arm of the drone capable of suppressing virtual positions and the drone including the arm can actively suppress the virtual positions generated after long-term use of the foldable arm through the cooperation between the arm assembly 100 and the mounting frame 200. By making adaptive adjustments to the structure, the stability of the arm will not be reduced too much. When there is a gap, by adjusting the structure to adjust the position of the limit structure, the position of the limit structure can be adjusted to a position where it can stably limit, so as to eliminate the gap, enabling the arm to maintain stability after being unfolded and clamped, and preventing the overall stability of the drone from being reduced too much. At the same time, the practicality of the foldable arm is greatly improved, solving the problem that the clamping structure of the existing foldable arm of the drone is prone to cause the stability of the arm to decline due to virtual positions after long-term use, which will affect the overall structural stability of the drone.

[0045] It should be noted that the term "including", "comprising" or any other variant thereof is 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 expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0046] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model.

Claims

1. A folding arm of an unmanned aerial vehicle capable of suppressing vacant positions, comprising a mounting frame (200), characterized in that: An arm assembly (100) capable of suppressing virtual positions is installed on the outer side of the installation frame (200); The arm assembly (100) comprises a limit pin (205), a first pin shaft (207), a threaded rod (208), two jack stop screws (211), an elastic member (209), a second pin shaft (105), an arm body (101), two fixing screws (106), a torsion spring (104) and a limit spanner (103); an elliptical hole (206) for the limit pin (205) to be inserted and moved is provided on the outer side of the mounting frame (200); The arm body (101) is hinged to the outer side of the mounting frame (200) via a first pin shaft (207), the limit spanner (103) is hinged to the top of the arm body (101) via a second pin shaft (105), and the torsion spring (104) is fixedly mounted between the limit spanner (103) and the outer side of the second pin shaft (105); The elastic member (209) is fixed to the inner side of the mounting frame (200) and is arranged toward a side close to the arm body (101); an internal threaded hole (210) corresponding to the position of the elastic member (209) and for threaded connection of the threaded rod (208) is provided on the inner side of the mounting frame (200).

2. The foldable drone arm capable of suppressing vacant position according to claim 1, characterized in that: A coupling end surface (102) is provided on a side of the arm body (101) close to the mounting frame (200); an inner end surface (201) is provided on the inner side of the mounting frame (200); a water guide boss (202) is fixed on a side of the inner end surface (201) close to the arm body (101); a semicircular water guide groove (203) is provided on the top of the inner end surface (201); and two water outlet holes (204) are provided on the outer side of the mounting frame (200) and are respectively connected to the inside of the semicircular water guide groove (203).

3. The foldable drone arm capable of suppressing vacancy according to claim 1, characterized in that: A U-shaped mounting piece is fixed on one side of the mounting frame (200) close to the arm body (101), wherein the U-shaped mounting piece is composed of two U-shaped blocks and a square block, and the two U-shaped blocks are symmetrically distributed.

4. The foldable drone arm capable of suppressing vacancy according to claim 3, characterized in that: The elliptical hole (206) is opened on the outside of the U-shaped block, and the inside of the elliptical hole (206) fits with the outside of the limiting pin (205).

5. The foldable drone arm capable of suppressing vacancy according to claim 3, characterized in that: A jack screw hole (212) for threaded connection with a corresponding jack stop screw (211) and communicating with the interior of a corresponding elliptical hole (206) is provided on a side of the U-shaped block close to the arm body (101); an end of the jack stop screw (211) can abut against the outer side of the limit pin (205); and a side of the bottom of the U-shaped block close to the arm body (101) is arc-shaped.

6. The foldable drone arm capable of suppressing vacant position according to claim 1, characterized in that: Two mounting holes for threaded connection of two fixing screws (106) are respectively provided on the outer side of the arm body (101).

7. The foldable drone arm capable of suppressing vacancy according to claim 1, characterized in that: The other end of the elastic member (209) abuts against the outer side of the limiting pin (205), and a circular hole for the threaded rod (208) to pass through is provided on the outer side of the limiting pin (205).

8. The foldable drone arm capable of suppressing vacant position according to claim 7, characterized in that: The end of the threaded rod (208) passes through the circular hole and the interior of the elastic member (209) in sequence and is threadedly connected to the inner side of the internal threaded hole (210); the side of the limit wrench (103) close to the limit pin (205) is arc-shaped and has a hook-shaped appearance.

9. A drone comprising the arm, characterized in that: It comprises the folding machine arm as described in any one of claims 1-8.

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