A sliding and folding arm connection structure for a drone

Abstract

The present invention provides a sliding and folding arm connection structure for a drone. By setting the folding part to have a slide rail structure below the sleeve section and an extension shell at the tail end of the sleeve section to form an extension chamber; setting the fixing part to have an insertion end at the head end of the fixing part body, and respectively providing an extended rotating shaft section and an extended buckle section on the fixing part to form a rotating shaft and a buckle. During installation, only need to invert the fixing part, the rotating shaft on it enters the slide rail structure through the insertion opening at the head end of the slide rail structure and moves to its tail end, then rotate the fixing part to the upright position, and the insertion section and / or the fixing part body are located in the extension chamber, and the installation is completed. There are few installation parts and the installation method is simple. In the fixed state, the insertion section is inserted into the inner cavity of the sleeve, and the buckle on the extended buckle section is locked in the buckle groove on the extension shell, with stable connection. The mutually wrapped sleeve section and insertion section can greatly increase the axial and radial strength, and greatly improve the obvious swing of the arm caused by the high-frequency rotation of the motor.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a sliding and folding arm connection structure for an unmanned aerial vehicle. Background Art

[0002] An unmanned aerial vehicle, abbreviated as UAV (Unmanned Aerial Vehicle), refers to an aircraft that can fly autonomously or be remotely piloted without carrying an operator.

[0003] A multi-rotor unmanned aerial vehicle is a special HYPERLINK "https: / / baike.baidu.com / item / %E6%97%A0%E4%BA%BA%E9%A9%BE%E9%A9%B6%E7%9B%B4%E5%8D%87%E6%9C%BA / 7701121?fromModule=lemma_inlink" \t "https: / / baike.baidu.com / item / %E5%A4%9A%E6%97%8B%E7%BF%BC%E6%97%A0%E4%BA%BA%E6%9C%BA / _blank" pilotless helicopter with three or more rotor shafts. It drives the rotors by the rotation of the electric motors on each shaft, thereby generating lift thrust. The collective pitch of the rotors is fixed, unlike that of a general helicopter which is variable. By changing the relative rotational speeds between different rotors, the magnitude of the single-axis propulsion force can be changed, thereby controlling the flight trajectory of the aircraft.

[0004] Multi-rotor unmanned aerial vehicles applied in fields such as plant protection and aerial photography are often large in size, and the length of the shaft for installing the rotors is often greater than 0.5 meters, making the overall space occupied by the unmanned aerial vehicle large and difficult to transport. In existing solutions, a snap-type folding structure is usually adopted. The flipping is achieved through a rotating shaft structure, and the folding and fastening are achieved through a snap structure. The rotating shaft structure is a single shaft inserted and fixed through fasteners (such as screws), and the snap structure also requires multiple components to be assembled.

[0005] The existing snap-type folding solutions have the following defects: First, when two parts are flipped and folded to be connected and fixed to each other, the two parts are only aligned side by side and do not form mutual wrapping. At this time, after the snap is fastened, when the connection between the two parts bears the axial force and radial force brought by the high-frequency rotation of the motor, large-amplitude swinging is likely to occur. Second, the rotating shaft is set as a separate part, resulting in a cumbersome assembly process. Third, the snap structure consists of multiple components, leading to a cumbersome assembly process. Summary of the Invention

[0006] To solve the above problems, the present invention provides a sliding and folding arm connection structure for an unmanned aerial vehicle, and the technical solution is as follows:

[0007] A sliding and folding arm connection structure for a drone, comprising:

[0008] A folding member, which includes a sleeve section, a rail structure, and an extension shell;

[0009] The sleeve section is used to connect the folding part of the external arm; the extension shell is connected to the tail end of the sleeve section and forms an extension chamber communicating with the inner cavity of the sleeve section, and a snap groove is provided on the extension shell; the rail structure is arranged at the bottom of the sleeve section, and an insertion opening is provided at the head end of the rail structure, and the tail end of the rail structure extends below the extension chamber;

[0010] A fixing member, which includes a fixing member body, an insertion section, an extension rotating shaft section, and an extension snap section;

[0011] The tail end of the fixing member body is used to connect the fixed part of the external arm; the insertion section is arranged at the head end of the fixing member body and is used to insert into the inner cavity of the sleeve section; the first end of the extension rotating shaft section is connected to the fixing member body, the second end of the extension rotating shaft section extends below the insertion section, and a rotating shaft for sliding connection to the rail structure is provided at the second end of the extension rotating shaft section; the first end of the extension snap section is connected to the fixing member body, and a snap corresponding to the snap groove is provided at the second end of the extension snap section;

[0012] During installation, the fixing member is inverted, the rotating shaft enters the rail structure through the insertion opening and moves to the tail end of the rail structure, the fixing member rotates to the upright position with the rotating shaft as the axis, and the insertion section and / or the fixing member body is located in the extension chamber;

[0013] In the folded state, the fixing member moves backward along the rail structure through the rotating shaft, the insertion section moves into the extension chamber and is not inserted into the sleeve section; the snap is unlocked from the snap groove, and the folding member realizes rotational folding relative to the fixing member through the rotating shaft rotating in the rail structure;

[0014] In the fixed state, the fixing member moves forward along the rail structure through the rotating shaft, the insertion section is inserted into the sleeve section, and the snap is locked in the snap groove.

[0015] For the sliding and folding arm connection structure of the drone of the present invention, the rail structure includes a base and two guide plates;

[0016] The base is connected to the bottom of the sleeve section; the two guide plates are connected to the bottom of the base, and the two guide plates are symmetrical and spaced apart along the axial direction of the sleeve section; the two guide plates are respectively provided with guide grooves extending along the axial direction of the sleeve section.

[0017] In the sliding folding arm connection structure of the unmanned aerial vehicle of the present invention, a plurality of reinforcing ribs are provided at the connection between the base and the sleeve section, and hollow structures are provided on both sides of the base along the axial direction of the sleeve section.

[0018] The sliding folding arm connection structure of the drone of the present invention, the slide rail structure also includes a limit plate;

[0019] The limiting plate is arranged at the lower ends of the two guide plates, and the limiting plate does not extend to the tail end of the guide groove in the axial direction of the sleeve section.

[0020] The sliding folding machine arm connection structure of the drone of the present invention, the extension shell includes an upper shell and two side shells;

[0021] The two side shells are respectively connected to the tail ends of the sleeve section and are respectively located on both sides of the sleeve section in the horizontal direction;

[0022] The upper shell is connected to the rear end of the sleeve section and is respectively connected to the two side shells, and one end of the upper shell away from the sleeve section extends upward and cooperates with the two side shells to form the extension chamber.

[0023] In the sliding folding type arm connection structure of the drone of the present invention, the buckle groove is arranged on the lower surface of the upper shell.

[0024] In the sliding folding machine arm connection structure of the unmanned aerial vehicle of the present invention, the insertion section is in a frustum shape, and the diameter of the head end of the insertion section is smaller than the diameter of the tail end of the insertion section.

[0025] The sliding folding arm connection structure of the drone of the present invention, the extending buckle section comprises a first vertical extending section and a first axial extending section;

[0026] The lower end of the first vertical extension section is connected to the head end of the fixing member body;

[0027] The head end of the first axial extension section is connected to the upper end of the first vertical extension section and is arranged away from the insertion section along the axial direction of the insertion section; the buckle is provided on the upper surface of the first axial extension section.

[0028] In the sliding and folding arm connection structure of the drone of the present invention, a plurality of protruding structures are provided on the upper surface at the tail end of the first axial extension section.

[0029] The sliding and folding arm connection structure of the unmanned aerial vehicle of the present invention, wherein the extended rotating shaft section includes a second vertical extension section, a second axial extension section and the rotating shaft;

[0030] The upper end of the second vertical extension section is connected to the lower end of the fixing part body;

[0031] The tail end of the second axial extension section is connected to the lower end of the second vertical extension section and is arranged towards the insertion section along the axis direction of the insertion section;

[0032] The rotating shaft is arranged at the head end of the second axial extension section.

[0033] In the sliding and folding arm connection structure of the unmanned aerial vehicle of the present invention, the insertion depth of the insertion section into the sleeve section is less than or equal to 35 mm.

[0034] Due to the adoption of the above technical solutions, the present invention has the following advantages and positive effects compared with the prior art:

[0035] In an embodiment of the present invention, the folding part is provided with a slide rail structure below the sleeve section, and an extension shell is arranged at the tail end of the sleeve section to form an extension chamber; the fixing part is provided with an insertion end at the head end of the fixing part body, and an extended rotating shaft section and an extended buckle section are respectively arranged on the fixing part to form a rotating shaft corresponding to the slide rail structure and a buckle corresponding to the buckle groove on the extension shell. During installation, only need to invert the fixing part, the rotating shaft on it enters the slide rail structure through the insertion opening at the head end of the slide rail structure and moves to its tail end, and then rotate the fixing part to the upright position with the rotating shaft as the axis. At this time, the insertion section and / or the fixing part body are located in the extension chamber, and the installation can be completed. The number of installation parts is small and the installation method is simple. In the fixed state, the insertion section on the fixing part is inserted into the inner cavity of the sleeve of the folding part, and the buckle on the extended buckle section is locked in the buckle groove on the extension shell, with stable connection. The mutually wrapped sleeve section and insertion section can greatly increase the axial and radial strength, and greatly improve the obvious swing of the arm caused by the high-frequency rotation of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic diagram of the folding part of the sliding and folding arm connection structure of the unmanned aerial vehicle of the present invention;

[0037] Figure 2 is a cross-sectional view of the folding part of the sliding and folding arm connection structure of the unmanned aerial vehicle of the present invention;

[0038] Figure 3 is a schematic diagram of the fixing part of the sliding and folding arm connection structure of the unmanned aerial vehicle of the present invention;

[0039] Figure 4 is a schematic diagram of the first installation state of the sliding and folding arm connection structure of the unmanned aerial vehicle of the present invention;

[0040] Figure 5 It is a schematic diagram of the second installation state of the sliding and folding arm connection structure of the unmanned aerial vehicle of the present invention;

[0041] Figure 6 It is a schematic diagram of the third installation state of the sliding and folding arm connection structure of the unmanned aerial vehicle of the present invention;

[0042] Figure 7 It is a sectional view of the third installation state of the sliding and folding arm connection structure of the unmanned aerial vehicle of the present invention;

[0043] Figure 8 It is a schematic diagram of the fourth installation state of the sliding and folding arm connection structure of the unmanned aerial vehicle of the present invention;

[0044] Figure 9 It is a sectional view of the fourth installation state of the sliding and folding arm connection structure of the unmanned aerial vehicle of the present invention;

[0045] Figure 10 It is a schematic diagram of the limiting plate of the sliding and folding arm connection structure of the unmanned aerial vehicle of the present invention;

[0046] Figure 11 It is a schematic diagram of the insertion part of the sliding and folding arm connection structure of the unmanned aerial vehicle of the present invention.

[0047] Explanation of reference numerals: 1: sleeve section; 2: slide rail structure; 3: extension shell; 301: extension chamber; 302: buckle groove; 4: insertion opening; 5: fixing part body; 6: insertion section; 7: extension buckle section; 8: buckle; 9: extension rotating shaft section; 10: rotating shaft; 11: convex structure; 12: limiting plate. Detailed implementation manners

[0048] The following further elaborates in detail on a sliding and folding arm connection structure of an unmanned aerial vehicle proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will be clearer based on the following description and claims.

[0049] Refer to Figures 1 to 3 , in one embodiment, a sliding and folding arm connection structure of an unmanned aerial vehicle includes a folding part and a fixing part.

[0050] The folding part includes a sleeve section 1, a slide rail structure 2, and an extension shell 3. Among them, the sleeve section 1 is used to connect the folding part of the external arm; the extension shell 3 is connected to the tail end of the sleeve section 1 and forms an extension chamber 301 communicating with the inner cavity of the sleeve section 1, and a buckle groove 302 is provided on the extension shell 3; the slide rail structure 2 is arranged at the bottom of the sleeve section 1, and an insertion opening 4 is provided at the head end of the slide rail structure 2, and the tail end of the slide rail structure 2 extends below the extension chamber 301.

[0051] The fixing member includes a fixing member body 5, an insertion section 6, an extended rotating shaft section 9, and an extended snap section 7. The tail end of the fixing member body 5 is used to connect to the fixed part of the external arm; the insertion section 6 is arranged at the head end of the fixing member body 5 and is used to insert into the inner cavity of the sleeve section 1; the first end of the extended rotating shaft section 9 is connected to the fixing member body 5, the second end of the extended rotating shaft section 9 extends below the insertion section 6, and a rotating shaft 10 for slidably connecting to the slide rail structure 2 is provided at the second end of the extended rotating shaft section 9; the first end of the extended snap section 7 is connected to the fixing member body 5, and a snap 8 corresponding to the snap groove 302 is provided at the second end of the extended snap section 7.

[0052] During installation, referring to Figure 4 , the fixing member is in an inverted state, and the extended rotating shaft section 9 that was originally below the fixing member body 5 is flipped to the upper side, and the rotating shaft 10 on the extended rotating shaft section 9 enters the slide rail structure 2 through the insertion opening 4; referring to Figure 5 , the entire fixing member slides along the slide rail structure 2 to the tail end of the slide rail structure 2. At this time, the entire fixing member is located below the folding member, and the insertion section 6 is located below the extended chamber 301; referring to Figure 6 and Figure 7 , the fixing member rotates to the upright position with the rotating shaft 10 as the axis, and the insertion section 6 and / or the fixing member body 5 can be flipped within the extended chamber 301 so that the insertion section 6 and / or the fixing member body 5 is located within the extended chamber 301, and the insertion section 6 is aligned with the rear end of the sleeve section 1. Referring to Figure 8 and Figure 9 , the fixing member body 5 and the insertion section 6 move forward, the insertion section 6 is inserted into the sleeve section 1, and the snap 8 is snapped into the snap groove 302, thus completing the fixation.

[0053] In the folded state, the fixing member moves rearward along the slide rail structure 2 to the end of the slide rail structure 2 through the rotating shaft 10, the insertion section 6 moves into the extended chamber 301 and is not inserted into the sleeve section 1. The snap 8 is unlocked from the snap groove 302, and the folding member can be rotationally folded relative to the fixing member by rotating the rotating shaft 10 within the slide rail structure 2.

[0054] In the fixed state, the fixing member moves forward along the slide rail structure 2 through the rotating shaft 10, the insertion section 6 is inserted into the sleeve section 1, and the snap 8 is locked in the snap groove 302.

[0055] In this embodiment, the folding member is provided with a slide rail structure 2 below the sleeve section 1, and an extension shell 3 is provided at the tail end of the sleeve section 1 to form an extension chamber 301; the fixing member is provided with an insertion end at the head end of the fixing member body 5, and an extension rotating shaft section 9 and an extension snap section 7 are respectively provided on the fixing member to form a rotating shaft 10 corresponding to the slide rail structure 2 and a snap 8 corresponding to the snap groove 302 on the extension shell 3. During installation, only need to invert the fixing member, the rotating shaft 10 thereon enters the slide rail structure 2 through the insertion opening 4 at the head end of the slide rail structure 2 and moves to its tail end, and then rotate the fixing member to the upright position with the rotating shaft 10 as the axis. At this time, the insertion section 6 and / or the fixing member body 5 are located in the extension chamber 301, and the installation can be completed. The number of installation parts is small and the installation method is simple. In the fixed state, the insertion section 6 on the fixing member is inserted into the inner cavity of the sleeve of the folding member, and the snap 8 on the extension snap section 7 is locked in the snap groove 302 on the extension shell 3. The connection is stable, and the mutually wrapped sleeve section 1 and insertion section 6 can greatly increase the axial and radial strength, and greatly improve the obvious swing of the arm caused by the high-frequency rotation of the motor.

[0056] The specific structure of the sliding and folding type arm connection structure of the unmanned aerial vehicle in this embodiment will be further described below:

[0057] In this embodiment, the above-mentioned slide rail structure 2 includes a base and two guide plates. The base is connected below the sleeve section. The two guide plates are connected below the base, and the two guide plates are symmetrically and spaced apart along the axis direction of the sleeve section. Guide grooves extending along the axis direction of the sleeve section are respectively formed on the two guide plates, and the two guide grooves are arranged oppositely, thereby forming a slide rail for guiding the rotating shaft 10 and the entire fixing member.

[0058] Furthermore, in order to ensure the connection strength, a plurality of reinforcing ribs can be provided at the connection between the base and the sleeve section. And, in order to reduce the weight and material consumption as much as possible, hollow structures can be provided on both sides of the base along the axis direction of the sleeve section without affecting the structural strength.

[0059] Refer to Figure 10 , in this embodiment, in order to limit the rotation range of the entire fixing member with the rotating shaft 10 as the axis, the slide rail structure 2 may further include a limiting plate 12. The limiting plate 12 is arranged at the lower ends of the two guide plates, and the limiting plate 12 does not extend to the tail end of the guide groove in the axis direction of the sleeve section 1. When in the unlocked state, the fixing member body 5 and the insertion section 6 can both rotate with the rotating shaft 10 as the axis in the extension chamber 301. The function of the limiting plate 12 is that when the rotation angle of the fixing member body 5 reaches a preset value, the fixing member body 5 abuts against the limiting plate 12, and its further rotation is restricted by the limiting plate 12.

[0060] In this embodiment, the above-mentioned extension shell 3 may specifically include an upper shell and two side shells. The two side shells are respectively connected to the tail end of the sleeve section and are respectively located on both sides of the sleeve section in the horizontal direction. The upper shell is connected to the tail end of the sleeve section and is respectively connected to the two side shells, and one end of the upper shell facing away from the sleeve section extends upward and cooperates with the two side shells to form the above-mentioned extension chamber 301. The purpose of extending upward is to ensure the rotation space of the fixing member body 5 and the insertion section 6.

[0061] In this embodiment, in order to enable the insertion section 6 to be conveniently inserted into the sleeve section 1, the insertion section 6 is frustum-shaped, and the diameter of the head end of the insertion section 6 is smaller than the diameter of the tail end of the insertion section 6. In order to ensure the stability of insertion and improve swing, the taper of the insertion section can be set to be less than 3°.

[0062] In this embodiment, the snap groove 302 is opened on the lower surface of the upper shell. The extension snap section 7 may include a first vertically extending section and a first axially extending section. The lower end of the first vertically extending section is connected to the head end of the fixing member body 5. The head end of the first axially extending section is connected to the upper end of the first vertically extending section and is arranged away from the insertion section 6 along the axis direction of the insertion section 6. A snap 8 is provided on the upper surface of the first axially extending section, which is matched with the snap groove 302. When the insertion section 6 is inserted into the sleeve section 1, the snap 8 can be snapped into the snap groove 302.

[0063] Furthermore, the first vertically extending section and the first axially extending section can be set to have a certain elasticity, so that an elastic snap structure can be formed at the snap 8.

[0064] Furthermore, a plurality of convex structures 11 are provided on the upper surface at the tail end of the first axially extending section, which are used to increase the friction here when the operator presses to unlock, and it is not easy to slip off.

[0065] In this embodiment, the extension rotating shaft section 9 may specifically include a second vertically extending section, a second axially extending section and a rotating shaft 10. The upper end of the second vertically extending section is connected to the lower end of the fixing member body 5. The tail end of the second axially extending section is connected to the lower end of the second vertically extending section and is arranged towards the insertion section 6 along the axis direction of the insertion section 6. The rotating shaft 10 is arranged at the head end of the second axially extending section.

[0066] The arrangements of the second vertically extending section and the second axially extending section enable the rotating shaft 10 to be located at a preset position relative to the fixing member body 5, providing a space for the fixing member body 5 and the insertion section 6 to rotate relative to each other.

[0067] See Figure 11, in this embodiment, considering that the drone has high requirements for the overall weight, the insertion depth of the above insertion section into the sleeve section can be set to be less than or equal to 35 mm. Considering the jitter test results and weight reduction comprehensively, the insertion depth is set to be greater than or equal to 5 mm and less than or equal to 35 mm, which can effectively improve the swing and avoid the situation of excessive overall gram weight caused by too much overlap.

[0068] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalent technologies, they still fall within the protection scope of the present invention.

Claims

1. A sliding and folding arm connection structure for a drone, characterized in that, include: A folding member, the folding member comprising a sleeve section, a slide rail structure and an extension shell; The sleeve section is used to connect the folding part of the external machine arm; the extension shell is connected to the tail end of the sleeve section and forms an extension chamber connected to the inner cavity of the sleeve section, and the extension shell is provided with a snap groove; the slide rail structure is provided at the bottom of the sleeve section, and the head end of the slide rail structure is provided with an insertion opening, and the tail end of the slide rail structure extends to the bottom of the extension chamber; A fixing member, the fixing member comprising a fixing member body, an insertion section, an extended shaft section and an extended buckle section; The tail end of the fixing body is used to connect to the fixing part of the external machine arm; the insertion section is provided at the head end of the fixing body and is used to be inserted into the inner cavity of the sleeve section; the first end of the extended shaft section is connected to the fixing body, the second end of the extended shaft section extends to the bottom of the insertion section, and the second end of the extended shaft section is provided with a shaft for sliding connection to the slide rail structure; the first end of the extended buckle section is connected to the fixing body, and the second end of the extended buckle section is provided with a buckle corresponding to the buckle groove; During installation, the fixing member is inverted, the rotating shaft enters the slide rail structure through the insertion opening and moves to the rear end of the slide rail structure, the fixing member is rotated to the upright position with the rotating shaft as the axis, and the insertion section and / or the fixing member body is located in the extension chamber; In the folded state, the fixing member moves backward along the slide rail structure through the rotating shaft, the insertion section moves into the extension chamber, and the sleeve section is not inserted; the buckle is unlocked in the buckle groove, and the folding member is rotated and folded relative to the fixing member by rotating the rotating shaft in the slide rail structure; In the fixed state, the fixing member moves forward along the slide rail structure through the rotating shaft, the insertion section is inserted into the sleeve section, and the buckle is locked in the buckle groove.

2. The sliding and folding arm connection structure of the drone according to claim 1, characterized in that The slide rail structure includes a base and two guide plates; The base is connected to the lower side of the sleeve section; The two guide plates are connected to the bottom of the base, and the two guide plates are symmetrically and spaced apart along the axial direction of the sleeve section; the two guide plates are respectively provided with guide grooves extending along the axial direction of the sleeve section.

3. The drone sliding and folding arm connection structure according to claim 2, characterized in that, A plurality of reinforcing ribs are provided at the connection between the base and the sleeve section, and hollow structures are provided on both sides of the base along the axial direction of the sleeve section.

4. The drone sliding and folding arm connection structure according to claim 2, wherein, The slide rail structure also includes a limiting plate; The limiting plate is arranged at the lower ends of the two guide plates, and the limiting plate does not extend to the tail end of the guide groove in the axial direction of the sleeve section.

5. The sliding and folding arm connection structure of the drone according to claim 1, characterized in that, The extended shell includes an upper shell and two side shells; The two side shells are respectively connected to the tail ends of the sleeve section and are respectively located on both sides of the sleeve section in the horizontal direction; The upper shell is connected to the rear end of the sleeve section and is respectively connected to the two side shells, and one end of the upper shell away from the sleeve section extends upward and cooperates with the two side shells to form the extension chamber.

6. The sliding and folding arm connection structure of the drone according to claim 5, characterized in that, The buckle slot is arranged on the lower surface of the upper shell.

7. The sliding and folding arm connection structure of the drone according to claim 1, characterized in that, The insertion section is frustum-shaped, and the diameter of the head end of the insertion section is smaller than the diameter of the tail end of the insertion section.

8. The drone sliding and folding arm connection structure according to claim 1, characterized in that, The extended buckle section includes a first vertically extended section and a first axially extended section; The lower end of the first vertically extended section is connected to the head end of the fixing member body; The head end of the first axially extended section is connected to the upper end of the first vertically extended section and is arranged away from the insertion section along the axis direction of the insertion section; the buckle is provided on the upper surface of the first axially extended section.

9. The drone sliding and folding arm connection structure according to claim 8, wherein, A plurality of convex structures are provided on the upper surface at the tail end of the first axially extended section.

10. The sliding and folding arm connection structure of the drone according to claim 1, characterized in that, The extended rotating shaft section includes a second vertically extended section, a second axially extended section and the rotating shaft; The upper end of the second vertically extended section is connected to the lower end of the fixing member body; The tail end of the second axially extended section is connected to the lower end of the second vertically extended section and is arranged towards the insertion section along the axis direction of the insertion section; The rotating shaft is arranged at the head end of the second axially extended section.

11. The sliding and folding arm connection structure of the drone according to claim 1, characterized in that, The insertion depth of the insertion section inserted into the sleeve section is less than or equal to 35 mm.

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