Foldable devices, drones and handheld gimbals

Abstract

A foldable device, an unmanned aerial vehicle and a handheld gimbal, wherein a first body (10) and a second body (20) of the foldable device are rotatably connected via a rotating connection assembly (30), wherein the rotating connection assembly comprises: a first component (31) fixedly connected to the first body; a second component (32) connected to the first component (31) and fixedly connected to the second body; the second component (32) can rotate to a first position, an intermediate position and a second position relative to the first component, so that the first body (10) and the second body (20) can switch between a folded state and an unfolded state; a first damping part (301a) and a second damping part (301b) are provided between the first component (31) and the second component (32), wherein the first damping part is used to prevent the second component from rotating from the intermediate position to the first position, and the second damping part is used to prevent the second component from rotating from the intermediate position to the second position; and the first rotation damping of the first damping part and the second rotation damping of the second damping part have different change rates.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of mechanical structure technology, and in particular to a foldable device, an unmanned aerial vehicle, and a handheld gimbal. Background Art

[0002] Certain parts of products such as handheld gimbals and unmanned aerial vehicles usually need to be folded. For example, the handle and the rotating arm of a handheld gimbal, and the body and the arm of an unmanned aerial vehicle usually need to have a folded state and an unfolded state. They can be in the unfolded state when in use, and can be folded up for easy storage when not in use.

[0003] At present, when handheld gimbals and unmanned aerial vehicles are unfolded and folded, it is easy to pinch your hands and the operation safety cannot be guaranteed. Therefore, it is usually hoped that handheld gimbals, unmanned aerial vehicles and other products can be operated safely, which is an urgent problem to be solved. Summary of the invention

[0004] In view of the above-mentioned defects in the prior art, embodiments of the present invention provide a foldable device, an unmanned aerial vehicle and a handheld gimbal.

[0005] A first aspect of an embodiment of the present invention provides a foldable device, comprising a first body and a second body, wherein the first body and the second body are rotatably connected via a rotating connection assembly, wherein the rotating connection assembly comprises:

[0006] A first component, fixedly connected to the first body;

[0007] a second component connected to the first component and fixedly connected to the second shaft arm; the second component can rotate relative to the first component to a first position, an intermediate position and a second position, so that the first body and the second body can switch between a folded state and an unfolded state;

[0008] A damping assembly is provided between the first component and the second component, the damping assembly comprising a first damping portion and a second damping portion, the first damping portion is used to prevent the second component from rotating from the intermediate position to the first position, and the second damping portion is used to prevent the second component from rotating from the intermediate position to the second position;

[0009] A first rotation damping provided by the first damping portion and a second rotation damping provided by the second damping portion change at different rates.

[0010] A second aspect of an embodiment of the present invention provides an unmanned aerial vehicle, comprising an arm and a fuselage, wherein the arm and the fuselage are rotatably connected via a rotating connection assembly, wherein the rotating connection assembly comprises:

[0011] A first component, fixedly connected to the fuselage;

[0012] a second component connected to the first component and fixedly connected to the machine arm; the second component can rotate relative to the first component to a first position, an intermediate position and a second position, so that the machine arm and the machine body can switch between a folded state and an unfolded state;

[0013] A damping assembly is provided between the first component and the second component, the damping assembly comprising a first damping portion and a second damping portion, the first damping portion is used to prevent the second component from rotating from the intermediate position to the first position, and the second damping portion is used to prevent the second component from rotating from the intermediate position to the second position;

[0014] A first rotation damping provided by the first damping portion and a second rotation damping provided by the second damping portion change at different rates.

[0015] A third aspect of an embodiment of the present invention provides a handheld gimbal, comprising a first shaft arm and a second shaft arm, wherein the first shaft arm and the second shaft arm are rotatably connected via a rotating connection assembly; wherein the rotating connection assembly comprises:

[0016] A first component, fixedly connected to the first shaft arm;

[0017] A second component is connected to the first component and fixedly connected to the second shaft arm; the second component can rotate relative to the first component to a first position, an intermediate position and a second position, so that the first shaft arm and the second shaft arm can switch between a folded state and an unfolded state;

[0018] A damping assembly is provided between the first component and the second component, the damping assembly comprising a first damping portion and a second damping portion, the first damping portion is used to prevent the second component from rotating from the intermediate position to the first position, and the second damping portion is used to prevent the second component from rotating from the intermediate position to the second position;

[0019] A first rotation damping provided by the first damping portion and a second rotation damping provided by the second damping portion change at different rates.

[0020] Based on the above, the foldable device, unmanned aerial vehicle and handheld gimbal provided by the embodiments of the present invention can effectively reduce the unfolding and folding speeds due to the provision of a damping component, thereby solving the problem of pinching hands to a certain extent and ensuring safe use. In addition, when switching between the folded state and the unfolded state, the corresponding damping change rate is different. Therefore, different unfolding speeds and folding speeds can be achieved to meet personalized needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A top view of a foldable device provided by an embodiment of the present invention;

[0023] Figure 2 A top view of another foldable device provided by an embodiment of the present invention;

[0024] Figure 3 A side view of a foldable device provided by an embodiment of the present invention;

[0025] Figure 4 It is a structural schematic diagram of a rotating connection assembly in a foldable device according to an embodiment of the present invention;

[0026] Figure 5 for Figure 4 A schematic structural diagram of a first component of a rotating connection assembly;

[0027] Figure 6 It is a schematic diagram of an exploded structure of a rotating connection assembly in a foldable device according to an embodiment of the present invention;

[0028] Figure 7 A schematic diagram of a state in which the second component of the rotating connection assembly provided by an embodiment of the present invention is in an intermediate position;

[0029] Figure 8 A schematic diagram of a state in which the second component of the rotating connection assembly provided in an embodiment of the present invention is in a first position A;

[0030] Fig. 9 A schematic diagram of a state in which the second component of the rotating connection assembly provided in an embodiment of the present invention is in a second position B;

[0031] Fig.10 A schematic diagram of the structure of an unmanned aerial vehicle provided in an embodiment of the present invention Figure 1 ;

[0032] Fig.11 A schematic diagram of the structure of an unmanned aerial vehicle provided in an embodiment of the present invention Figure 2 ;

[0033] Fig.12 A top view of a handheld gimbal provided by an embodiment of the present invention;

[0034] Fig.13A top view of another handheld gimbal provided by an embodiment of the present invention;

[0035] Fig.14 A side view of a handheld gimbal provided in accordance with an embodiment of the present invention. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0038] The term "including" mentioned throughout the specification and claims is an open term and should be interpreted as "including but not limited to". "Substantially" means that within an acceptable error range, a person skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0039] In addition, the term "connect" includes any direct and indirect connection means. Therefore, if a first device is described as being connected to a second device, it means that the first device can be directly connected to the second device or indirectly connected to the second device through other devices.

[0040] It should be understood that the terms "and / or, and / or" used in this article are only a way to describe the association relationship of associated objects, indicating that there can be three relationships. For example, A1 and / or B1 can represent: A1 exists alone, A1 and B1 exist at the same time, and B1 exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0041] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of mutual contradiction, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification.

[0042] Embodiment 1

[0043] Figure 1 A top view of a foldable device provided by an embodiment of the present invention; Figure 2 A top view of another foldable device provided by an embodiment of the present invention; Figure 3 A side view of a foldable device provided by an embodiment of the present invention.

[0044] like Figures 1 to 3 As shown, the foldable device provided in this embodiment includes a first body 10 and a second body 20, and the first body 10 and the second body 20 are rotatably connected through a rotating connection assembly 30. The foldable device can be any product that needs to use a folding structure, such as an unmanned aerial vehicle, a handheld gimbal, a mobile robot, etc., and this embodiment does not limit it.

[0045] For example, for an unmanned aerial vehicle, the first body 10 may be the fuselage of the unmanned aerial vehicle, and the second body 20 may be the arm of the unmanned aerial vehicle, or the first body 10 may be the fuselage of the unmanned aerial vehicle, and the second body 20 may be the tripod of the unmanned aerial vehicle, or the first body 10 may be one component of the unmanned aerial vehicle, and the second body 20 may be another component of the unmanned aerial vehicle, which is not limited in this embodiment. For a handheld gimbal, the first body 10 may be the first axis arm of the handheld gimbal, and the second body 20 may be the second axis arm of the handheld gimbal, or other components that need to be folded, which is not limited in this embodiment.

[0046] Of course, the foldable device provided in this embodiment is not limited to the products listed above. In actual situations, it can also be any other foldable device.

[0047] Figure 4 It is a structural schematic diagram of a rotating connection assembly in a foldable device according to an embodiment of the present invention; Figure 5 for Figure 4 A schematic structural diagram of a first component of a rotating connection assembly; Figure 6 FIG. 1 is a schematic diagram of an exploded structure of a rotating connection assembly in a foldable device according to an embodiment of the present invention. Figure 1 , Attachment Figure 2 and attached Figure 3 The rotating connection assembly 30 includes: a first component 31 and a second component 32.

[0048] like Figure 3 As shown, the first component 31 is fixedly connected to the first body 10. The second component 32 is connected to the first component 31 and is fixedly connected to the second body 20. The first component 31 and the first body 10 may be detachably connected, such as by screwing, snap-on connection, etc., or the first component 31 and the first body 10 may be non-detachably connected, such as by welding, riveting, gluing, etc., or the first component 31 and the first body 10 may be integrally formed, such as by integral injection molding, etc., which is not specifically limited in this embodiment. Similarly, the second component 32 and the second body 20 may also be connected in any of the following ways: detachable connection, non-detachable connection, integral molding, etc., which will not be elaborated here.

[0049] The second component 32 and the first component 31 can be coaxially connected. Specifically, the second component 32 can be sleeved outside the first component 31 or inserted into the first component 31, or the two can be coaxially sleeved through a connecting shaft. Alternatively, in some embodiments, the second component 32 is arranged outside the first component 31, and the second component 32 can rotate around the first component 31 with the first component 31 as the center. Of course, the present invention is not limited to this.

[0050] like Figure 1-Figure 3 As shown, the second component 32 can rotate relative to the first component 31 to a first position A, an intermediate position O and a second position B, so that the first body 10 and the second body 20 can be switched between a folded state and an unfolded state.

[0051] In this embodiment, if Figure 1 As shown, when the second component 32 is in the first position A relative to the first component 31, the first body 10 and the second body 20 are in an unfolded state; when the second component 32 is in the second position B relative to the first component 31, the first body 10 and the second body 20 are in a folded state.

[0052] In such Figure 1 In the structure shown, since the first component 31 is fixedly connected to the first body 10, and the second component 32 is fixedly connected to the second body 20, the second body 20 can rotate clockwise from the middle position O to the unfolded state during the process of the second component 32 rotating from the middle position O to the first position A relative to the first component 31. In addition, during the process of the second component 32 rotating from the middle position O to the second position B relative to the first component 31, the second body 20 can rotate counterclockwise from the middle position O to the folded state.

[0053] Of course, it can be understood that in other embodiments, for example Figure 2 As shown, when the second component 32 is in the first position A relative to the first component 31, the first body 10 and the second body 20 are in the folded state; when the second component 32 is in the second position B relative to the first component 31, the first body 10 and the second body 20 are in the unfolded state. As long as the second component 32 can rotate relative to the first component 31, the second body 20 can be driven to rotate relative to the first body 10 to switch between the folded state and the unfolded state.

[0054] like Figures 4 to 6As shown, a damping assembly 301 is provided between the first component 31 and the second component 32, and the damping assembly 301 includes a first damping portion 301a and a second damping portion 301b, wherein the first damping portion 301a is used to prevent the second component 32 from rotating from the middle position O to the first position A, and the second damping portion 301b is used to prevent the second component 32 from rotating from the middle position O to the second position B. By providing the damping assembly 301, the unfolding speed and the folding speed of the foldable device can be effectively reduced, thereby improving the operational safety to a certain extent.

[0055] In this embodiment, the first rotation damping provided by the first damping part 301a and the second rotation damping provided by the second damping part 301b have different change rates. Thus, the unfolding speed and folding speed of the foldable device can be different to meet personalized needs. It should be noted that the change of the first rotation damping can be from large to small, or from small to large, which is not limited in this embodiment.

[0056] The foldable device provided in the embodiment of the present invention can effectively reduce the unfolding and folding speeds due to the provision of a damping component, thereby solving the problem of pinching fingers to a certain extent and ensuring safe use. In addition, when switching between the folded state and the unfolded state, the corresponding damping change rates are different. Therefore, different unfolding speeds and folding speeds can be achieved to meet personalized needs.

[0057] Embodiment 2

[0058] After creative work, the inventors discovered that during the unfolding and folding process of handheld gimbals, unmanned aerial vehicles, etc., in order to improve operational efficiency, the folding speed is often too fast, which makes it easy to get your hands caught and cannot ensure operational safety. In order to ensure operational safety, the unfolding speed is too slow, which affects operational efficiency.

[0059] In order to solve the above problems in the prior art, this embodiment is further described on the basis of the first embodiment. Specifically, in this embodiment, Figure 1As shown, when the second component 32 is in the first position A relative to the first component 31, the first body 10 and the second body 20 are in an unfolded state; when the second component 32 is in the second position B relative to the first component 31, the first body 10 and the second body 20 are in a folded state, the first damping part 301a and the second damping part 301b can be reasonably designed so that the change rate of the first rotation damping provided by the first damping part 301a can be greater than the change rate of the second rotation damping provided by the second damping part 301a. In this way, the fast unfolding and slow folding of the foldable device can be achieved. The fast unfolding can effectively ensure the operating efficiency, while the slow folding can effectively improve the operating safety and prevent the hand from being pinched. It should be noted that since the damping component is added to the present invention, the unfolding speed of the foldable device is lower than the unfolding speed in the prior art even compared with the prior art.

[0060] In other embodiments, when the second component 32 is in the first position A relative to the first component 31, the first body 10 and the second body 20 are in a folded state; when the second component 32 is in the second position B relative to the first component 31, the first body 10 and the second body 20 are in an unfolded state, the first damping part 301a and the second damping part 301b can be reasonably designed so that the change rate of the first rotation damping provided by the first damping part 301a can be smaller than the change rate of the second rotation damping provided by the second damping part 301a. Similarly, the fast unfolding and slow folding of the foldable device can be achieved.

[0061] Of course, it should be understood that in some special application scenarios, it may be desired that the unfolding speed of the foldable device is lower than the folding speed of the foldable device, that is, to achieve the effect of fast folding and slow unfolding. Those skilled in the art can specifically design the first damping part 301a and the second damping part 301b to achieve the desired purpose, which will not be described in detail in this embodiment.

[0062] Embodiment 3

[0063] This embodiment provides a specific structure of a damping component 301 based on the first embodiment or the second embodiment, such as Figure 4-Figure 6 As shown, the first damping portion 301a and the second damping portion 301b of the damping assembly 301 of this embodiment are located on the first component 31, and the second component 32 includes an abutting device 321 for abutting against the first damping portion 301a and the second damping portion 301b.

[0064] The abutting device 321 abuts against the first damping portion 301 a to generate a first rotation damping, and the abutting device 321 abuts against the second damping portion 301 b to generate a second rotation damping.

[0065] In the process of folding or unfolding the foldable device, the second body 20 rotates relative to the first body 10, and the second component 32 rotates relative to the first component 31, so that the abutting device 321 on the second component 32 abuts against the first damping part 301a or the abutting device 321 abuts against the second damping part 301b. The first damping part 301a, the second damping part 301b and the abutting device 321 abut against each other, and a certain friction resistance is generated between the two, so that the abutting device 321 and the second component 32 are hindered from rotating by the first damping part 301a and the second damping part 301b, so that the rotation of the second component 32 relative to the first component 31 is slowed down, or in other words, the rotation of the second body 20 relative to the first body 10 is slowed down, so that the unfolding or folding speed of the foldable device is slowed down, effectively improving the safety of the foldable device.

[0066] Furthermore, the abutting device 321 may be elastic; and / or the first damping part 301a may be elastic; and / or the second damping part 301b may be elastic. Thus, the contact between the abutting device 321 and the first damping part 301a and / or the second damping part 301b may be elastic, so that the first component 31 and the second component 32 can rotate relative to each other, and thus the foldable device can be more stable and smooth during the unfolding or folding process, thereby improving the user experience.

[0067] In this embodiment, preferably, the resisting device 321 is elastic, and includes an elastic member 3211 and a resisting member 3212 , the elastic member 3211 resists against the resisting member 3212 , and the resisting member 3212 is used for resisting contact with the first damping portion 301a and the second damping portion 301b .

[0068] In addition, the elastic member 3211 may specifically be an axial telescopic spring. Figure 7 A schematic diagram of the state of the second component 32 in the rotating connection assembly provided in an embodiment of the present invention when it is in the middle position O; Figure 7 As shown, when the second component 32 is in the middle position, the elastic member 3211 may be in a compressed state. Figure 8 A schematic diagram of a state in which the second component of the rotating connection assembly provided in an embodiment of the present invention is in a first position A; Fig. 9 A schematic diagram of a state in which the second component of the rotating connection assembly provided in an embodiment of the present invention is in a second position B; Figure 8 and Fig. 9 As shown, during the process of the second component 32 rotating from the middle position to the first position A and the second position B, the elastic member 3211 can gradually stretch or gradually recover from the compressed state to the original length state.

[0069] In some other embodiments, when the second component 32 is in the middle position, the elastic member 3211 can be in the original length state or the extended state. During the process of the second component 32 rotating from the middle position to the first position A and the second position B, the elastic member 3211 can be gradually compressed or gradually restored from the extended state to the original length state.

[0070] Of course, in some other embodiments, the elastic member 3211 may also be a rubber member or some other elastic member 3211. This embodiment is not particularly limited.

[0071] Please continue to refer to Figure 7 The second component 32 may further include a sleeve 322 , in which the abutting device 321 may be accommodated. The abutting device 321 and the sleeve 322 are circumferentially fixed, and the abutting device 321 may be axially retractable in the sleeve 322 .

[0072] The so-called circumferential fixation of the abutting device 321 and the sleeve 322 means that the abutting device 321 cannot rotate circumferentially relative to the sleeve 322. Specifically, the cross section of the inner side wall of the sleeve 322 can be non-circular, and the outer side wall shape of the abutting member 3212 in the abutting device 321 can match the inner side wall shape of the sleeve 322. In this embodiment, the inner side wall cross section of the sleeve 322 is rectangular, and the outer side wall shape of the abutting member 3212 matches the inner side wall of the sleeve 322. In this way, the purpose of preventing the abutting member 3212 from rotating circumferentially relative to the sleeve 322 can be achieved, that is, the abutting device 321 and the sleeve 322 are circumferentially fixed.

[0073] It is understandable that the abutting device 321 can also achieve the purpose of circumferentially fixing the abutting device 321 and the sleeve 322 by matching other structures other than the abutting piece 3212 with the inner wall of the sleeve 322. For example, the cross section of the inner wall of the sleeve 322 is non-circular, and the end of the abutting device 321 away from the abutting piece 3212 matches the inner wall of the sleeve 322. Alternatively, an anti-rotation member is provided on the abutting device 321, for example, a protrusion protruding radially outward is provided on the abutting device 321, and a groove for inserting the protrusion is provided on the inner wall of the sleeve 322, wherein the length direction of the groove extends in parallel with the axial direction of the sleeve 322, and the circumferential positioning of the abutting device 321 and the sleeve 322 is achieved by matching the protrusion and the groove. Of course, there are many ways to circumferentially fix the abutting device 321 and the sleeve 322, and those skilled in the art can design them specifically according to actual conditions, and this embodiment does not list them one by one.

[0074] The sleeve 322 can be used to be fixedly connected with the second body 20. The abutting device 321 is circumferentially fixed to the sleeve 322, so that when the user rotates the sleeve 322, the abutting device 321 is driven to rotate relative to the first component 31, and during the rotation process, since the abutting device 321 can axially expand and contract relative to the sleeve 322, and the sleeve 322 is fixedly connected to the second body 20, during the rotation process of the second component 32 relative to the first component 31, the abutting device 321 moves axially relative to the first component 301b to change the relative force between the abutting device 321 and the first component 301b, and the second body 20 together with the sleeve 322 only has relative rotation relative to the first body 10, and the second body 20 does not move relative to the first body 10 in the axial direction.

[0075] The foldable device provided in the embodiment of the present invention may further include a rotating shaft 323, the rotating shaft 323 passes through the first component 31 and the second component 32, and both ends of the rotating shaft 323 may be respectively provided with axial stoppers for axially fixing the first component 31 and the second component 32. Through the cooperation between the rotating shaft 323 and the axial stoppers, the first component 31 and the second component 32 are relatively fixed in the axial direction, with a simple structure and reliable functions.

[0076] At least one of the axial stoppers at both ends of the rotating shaft 323 may be detachably connected to the rotating shaft 323. Specifically, the first axial stopper 3231a used to axially fix the first component 31 may be non-detachably connected to the rotating shaft 323 (for example, integrally formed), and the second axial stopper 3231b used to axially fix the second component 32 may be detachably connected to the rotating shaft 323, or vice versa, that is, the first axial stopper 3231a is detachably connected to the rotating shaft 323, and the second axial stopper 3231b is non-detachably connected to the rotating shaft 323 (for example, integrally formed). Of course, the first axial stopper 3231a is detachably connected to the rotating shaft 323, The second axial limit member 3231b and the rotating shaft 323 can be detachably connected. In this way, the detachable one of the first axial limit member 3231a and the second axial limit member 3231b can be removed from the rotating shaft 323, and the axial fixation between the first component 31 and the second component 32 is released, so that the first component 31 and the second component 32 can be separated, and then the first component 31 and the second component 32 can be inspected and repaired, such as cleaning dust and impurities or replacing aging parts, etc., to ensure the reliable operation of the first component 31 and the second component 32.

[0077] In this embodiment, the elastic member 3211 may be cylindrical, and the elastic member 3211 may be sleeved outside the rotating shaft 323. The rotating shaft 323 may prevent the elastic member 3211 from swinging, so that the elastic member 3211 can only expand and contract along the axial direction.

[0078] One end of the elastic member 3211 can be fixedly connected or abutted with the sleeve 322, and the other end can be fixedly connected or abutted with the push-up member 3212. When the elastic member 3211 abuts against the push-up member 3212, an anti-slip member can be provided in the sleeve 322 to prevent the push-up member 3212 from falling off from the sleeve 322.

[0079] For the first component 31, in this embodiment, Figure 5 As shown, the first component 31 may include a cam, and the cam includes a first cam wall C1 and a second cam wall C2. The first cam wall C1 forms a first damping portion 301a, and the second cam wall C2 forms a second damping portion 301b. Since the cam has an up-and-down slope, when the second component 32 rotates relative to the first component 31, the push device 321 contacts the cam. Under the action of the slope of the cam, since the elastic member 3211 can be extended and retracted, the push member 3212 of the push device 321 can be raised and lowered along the axial direction. The push member 3212 is located at a different height, and the corresponding elastic force of the elastic member 3211 is also different. For the user, the damping experience is also different. It can be understood that in Figure 4 In the illustrated embodiment, the higher the height of the abutting member 3212 is, the greater the compression of the elastic member 3211 is, and the corresponding rotational damping is also greater.

[0080] In this embodiment, the first cam wall C1 may be an inclined surface, and the second cam wall C2 may be an inclined surface, and the slope of the first cam wall C1 is different from the slope of the second cam wall C2. By designing the slopes of the first cam wall C1 and the second cam wall C2 to be different, the first rotational damping of the first damping part 301a and the second rotational damping of the second damping part 301b can be changed at different rates, thereby achieving the purpose of different unfolding speed and folding speed of the foldable device. In this embodiment, preferably, the slope of the first cam wall C1 is greater than the slope of the second cam wall C2, thereby achieving the effect of fast unfolding and slow folding.

[0081] In some other embodiments, the first cam wall C1 may be a curved surface, and the second cam wall C2 may be a curved surface, and the curvature of the first cam wall C1 is different from the curvature of the second cam wall C2. Similarly, by designing the curvature of the curved surface of the first cam wall C1 and the curved surface of the second cam wall C2 to be different, the first rotational damping of the first damping part 301a and the second rotational damping of the second damping part 301b can be made to change at different rates, thereby achieving the purpose of different unfolding speed and folding speed of the foldable device. In this embodiment, the curvature of the first cam wall C1 is greater than the curvature of the second cam wall C2. Thus, the effect of fast unfolding and slow folding can be achieved.

[0082] Furthermore, when the second component 32 rotates from the middle position O to the first position A, the push device 321 slides from the top of the cam to the bottom of the first cam wall C1; when the second component 32 rotates from the middle position O to the second position B, the push device 321 slides from the top of the cam to the bottom of the second cam wall C2.

[0083] For example, the slope or curvature of the first cam wall C1 is greater than the slope or curvature of the second cam wall C2. Figure 7 As shown, the middle position O is located at the top of the cam, the second component 32 is at the middle position O, the abutting device 321 abuts against the top of the cam, and the elastic member 3211 is at the maximum deformation. During the process of the second component 32 rotating from the middle position O to the first position A, the abutting device 321 descends, and the elastic potential energy of the elastic member 3211 is gradually released. When the second component 32 reaches the bottom of the first cam wall C1 (as shown in FIG. Figure 8 As shown in FIG. 2 , after that, under the action of the elastic member 3211, the second member 32 can be maintained in the unfolded state. During the process of the second member 32 rotating from the middle position O to the second position B, the abutting device 321 descends, and the elastic potential energy of the elastic member 3211 is gradually released. When the second member 32 reaches the bottom of the second cam wall C2 (as shown in FIG. 2 ), the second member 32 can be maintained in the unfolded state under the action of the elastic member 3211. During the process of the second member 32 rotating from the middle position O to the second position B, the abutting device 321 descends, and the elastic potential energy of the elastic member 3211 is gradually released. Fig. 9 After that, under the action of the elastic member 3211, the second component 32 can be maintained in the folded state. During the process of the second component 32 rotating from the middle position O to the first position A relative to the first component 31, the first rotation damping is gradually reduced, and during the process of the second component 32 rotating from the middle position O to the second position B relative to the first component 31, the second rotation damping is also gradually reduced.

[0084] It should be noted that, in the embodiments of the present invention, the second component 32 being in the middle position O, the first position A, and the second position B all refer to the position of the abutting top end (abutting member 3212) of the abutting device 321 of the second component 32.

[0085] Furthermore, this embodiment is preferred, as Figure 5 As shown, the first component 31 may include two cams, and the two cams are arranged in a centrally symmetrical manner with the axis of the first component 31 as the center.

[0086] The shape of one end of the abutting device 321 for abutting against the cam can match the shape formed by the two cams. When the second component 32 is in the first position A relative to the first component 31, the one end of the abutting device 321 for abutting against the cam is in a locked state with the two cams. In this way, when the second component 32 is in the first position A, the first body 10 and the second body 20 can be in the most stable state, that is, in the unfolded state, the relative state of the first body 10 and the second body 20 is very stable. For example, for an unmanned aerial vehicle, in the unfolded state, the arm can be stably maintained in the unfolded state. If the arm needs to be folded, a large external force is required to make the arm overcome the resistance of the damping component to rotate the arm, so that the arm can be better maintained in the unfolded state, and the arm is not easy to shake during the flight of the unmanned aerial vehicle.

[0087] In addition, it should be noted that, in some embodiments, in order to make the damping change rates of the first damping portion 301a and the second damping portion 301b different, damping material (such as rubber, silicone, etc.) or other elastic limiting materials can be added to the first component 31 to reduce the speed of the unfolding and folding process, and the damping of each part of the damping material is designed to achieve the required damping change rates of the first damping portion 301a and the second damping portion 301b.

[0088] Embodiment 4

[0089] Fig.10 A schematic diagram of the structure of an unmanned aerial vehicle provided in an embodiment of the present invention Figure 1 ; Fig.11 A schematic diagram of the structure of an unmanned aerial vehicle provided in an embodiment of the present invention Figure 2 ;like Figure 10 to Figure 11 As shown, this embodiment provides an unmanned aerial vehicle, including a fuselage 10a and an arm 20a, wherein the fuselage 10a and the arm 20a are rotatably connected via a rotating connection assembly 30, wherein the rotating connection assembly 30 includes:

[0090] The first component 31 is fixedly connected to the fuselage 10a. The second component 32 is connected to the first component 31 and is fixedly connected to the arm 20a. The first component 31 and the fuselage 10a may be detachably connected, such as by screwing, snapping, etc., or the first component 31 and the fuselage 10a may be non-detachably connected, such as by welding, riveting, gluing, etc., or the first component 31 and the fuselage 10a may be integrally formed, such as by integral injection molding, etc., which is not specifically limited in this embodiment. Similarly, the second component 32 and the arm 20a may also be connected in any of the following ways: detachably connected, non-detachably connected, integrally formed, etc., which will not be elaborated here.

[0091] The second component 32 and the first component 31 can be coaxially connected. Specifically, the second component 32 can be sleeved outside the first component 31 or inserted into the first component 31, or the two can be coaxially sleeved through a connecting shaft. Alternatively, in some embodiments, the second component 32 is arranged outside the first component 31, and the second component 32 can rotate around the first component 31 with the first component 31 as the center. Of course, the present invention is not limited to this.

[0092] It should be noted that the second component 32 can rotate relative to the first component 31 to the first position A, the middle position O and the second position B, so that the fuselage 10a and the arm 20a can be switched between the folded state and the unfolded state.

[0093] In this embodiment, if Fig.10 As shown, when the second component 32 is in the first position A relative to the first component 31, the fuselage 10a and the arm 20a are in an unfolded state; when the second component 32 is in the second position B relative to the first component 31, the fuselage 10a and the arm 20a are in a folded state.

[0094] In such Fig.10 In the structure shown, since the first component 31 is fixedly connected to the fuselage 10a, and the second component 32 is fixedly connected to the arm 20a, the arm 20a can rotate clockwise from the middle position O to the unfolded state during the process of the second component 32 rotating from the middle position O to the first position A relative to the first component 31. In addition, during the process of the second component 32 rotating from the middle position O to the second position B relative to the first component 31, the arm 20a can rotate counterclockwise from the middle position O to the folded state.

[0095] Of course, it is understandable that in other embodiments, when the second component 32 is in the first position A relative to the first component 31, the fuselage 10a and the arm 20a are in the folded state; when the second component 32 is in the second position B relative to the first component 31, the fuselage 10a and the arm 20a are in the unfolded state. As long as the second component 32 can rotate relative to the first component 31, the arm 20a can be driven to rotate relative to the fuselage 10a to switch between the folded state and the unfolded state.

[0096] like Figures 4 to 6 As shown, a damping assembly 301 is provided between the first component 31 and the second component 32, and the damping assembly 301 includes a first damping portion 301a and a second damping portion 301b, wherein the first damping portion 301a is used to prevent the second component 32 from rotating from the middle position O to the first position A, and the second damping portion 301b is used to prevent the second component 32 from rotating from the middle position O to the second position B. By providing the damping assembly 301, the unfolding speed and the folding speed of the foldable device can be effectively reduced, thereby improving the operational safety to a certain extent.

[0097] In this embodiment, the first rotation damping provided by the first damping part 301a and the second rotation damping provided by the second damping part 301b have different change rates. Thus, the unfolding speed and folding speed of the foldable device can be different to meet personalized needs. It should be noted that the change of the first rotation damping can be from large to small, or from small to large, which is not limited in this embodiment.

[0098] The unmanned aerial vehicle provided in the embodiment of the present invention can effectively reduce the unfolding and folding speeds by providing a damping component in the rotating connection component between the arm and the fuselage, thereby solving the problem of pinching fingers to a certain extent and ensuring safe use. In addition, when switching between the folded state and the unfolded state, the corresponding damping change rate is different. Therefore, different unfolding speeds and folding speeds can be achieved to meet personalized needs.

[0099] Embodiment 5

[0100] This embodiment is further described on the basis of the fourth embodiment. Specifically, in this embodiment, Fig.10 and Fig.11 As shown, when the second component 32 is in the first position A relative to the first component 31, the fuselage 10a and the arm 20a are in an unfolded state; when the second component 32 is in the second position B relative to the first component 31, the fuselage 10a and the arm 20a are in a folded state, the first damping part 301a and the second damping part 301b can be reasonably designed so that the change rate of the first rotation damping provided by the first damping part 301a can be greater than the change rate of the second rotation damping provided by the second damping part 301a. In this way, the fast unfolding and slow folding of the foldable device can be achieved. The fast unfolding can effectively ensure the operating efficiency, while the slow folding can effectively improve the operating safety and prevent the hand from being pinched. It should be noted that since the damping component is added to the present invention, the unfolding speed of the foldable device is lower than the unfolding speed in the prior art even compared with the prior art.

[0101] In other embodiments, when the second component 32 is in the first position A relative to the first component 31, the fuselage 10a and the arm 20a are in a folded state; when the second component 32 is in the second position B relative to the first component 31, the fuselage 10a and the arm 20a are in an unfolded state, the first damping part 301a and the second damping part 301b can be reasonably designed so that the change rate of the first rotation damping provided by the first damping part 301a can be smaller than the change rate of the second rotation damping provided by the second damping part 301a. Similarly, the fast unfolding and slow folding of the foldable device can be achieved.

[0102] Of course, it should be understood that in some special application scenarios, it may be desired that the unfolding speed of the foldable device is lower than the folding speed of the foldable device, that is, to achieve the effect of fast folding and slow unfolding. Those skilled in the art can specifically design the first damping part 301a and the second damping part 301b to achieve the desired purpose, which will not be described in detail in this embodiment.

[0103] Embodiment 6

[0104] This embodiment provides a specific structure of a damping component 301 based on the fourth embodiment or the fifth embodiment, such as Figure 4-Figure 6 As shown, the first damping portion 301a and the second damping portion 301b of the damping assembly 301 of this embodiment are located on the first component 31, and the second component 32 includes an abutting device 321 for abutting against the first damping portion 301a and the second damping portion 301b.

[0105] The abutting device 321 abuts against the first damping portion 301 a to generate a first rotation damping, and the abutting device 321 abuts against the second damping portion 301 b to generate a second rotation damping.

[0106] Further, the resisting device 321 may be elastic; and / or the first damping portion 301a may be elastic; and / or the second damping portion 301b may be elastic.

[0107] In this embodiment, preferably, the resisting device 321 is elastic, and includes an elastic member 3211 and a resisting member 3212 , the elastic member 3211 resists against the resisting member 3212 , and the resisting member 3212 is used for resisting contact with the first damping portion 301a and the second damping portion 301b .

[0108] Please continue to refer to Figure 7 The second component 32 may further include a sleeve 322 , in which the abutting device 321 may be accommodated. The abutting device 321 and the sleeve 322 are circumferentially fixed, and the abutting device 321 may be axially retractable in the sleeve 322 .

[0109] The foldable device provided in the embodiment of the present invention may further include a rotating shaft 323, the rotating shaft 323 passes through the first component 31 and the second component 32, and the two ends of the rotating shaft 323 may be respectively provided with axial stoppers for axially fixing the first component 31 and the second component 32. At least one of the axial stoppers at the two ends of the rotating shaft 323 may be detachably connected to the rotating shaft 323.

[0110] For the first component 31, in this embodiment, Figure 5 As shown, the first component 31 may include a cam, and the cam includes a first cam wall C1 and a second cam wall C2 . The first cam wall C1 forms a first damping portion 301 a , and the second cam wall C2 forms a second damping portion 301 b .

[0111] In this embodiment, the first cam wall C1 may be an inclined surface, the second cam wall C2 may be an inclined surface, and the slope of the first cam wall C1 is different from the slope of the second cam wall C2. In this embodiment, preferably, the slope of the first cam wall C1 is greater than the slope of the second cam wall C2.

[0112] In some other embodiments, the first cam wall C1 may be a curved surface, the second cam wall C2 may be a curved surface, and the curvature of the first cam wall C1 is different from the curvature of the second cam wall C2. The curvature of the first cam wall C1 is greater than the curvature of the second cam wall C2.

[0113] Furthermore, when the second component 32 rotates from the middle position O to the first position A, the push device 321 slides from the top of the cam to the bottom of the first cam wall C1; when the second component 32 rotates from the middle position O to the second position B, the push device 321 slides from the top of the cam to the bottom of the second cam wall C2.

[0114] Furthermore, this embodiment is preferred, as Figure 5 As shown, the first component 31 may include two cams, and the two cams are arranged in a centrally symmetrical manner with the axis of the first component 31 as the center.

[0115] The shape of one end of the abutting device 321 for abutting the cam can match the shape formed by the two cams. When the second component 32 is in the first position A relative to the first component 31, the end of the abutting device 321 for abutting the cam is in a snap-fit ​​state with the two cams.

[0116] The structures and functions of the components in the rotating connection assembly described in this embodiment are the same as those in Embodiment 3. For details, please refer to the description of Embodiment 3 and will not be repeated here. The difference between this embodiment and Embodiment 3 is that the first body is specifically a fuselage and the second body is specifically an arm.

[0117] Embodiment 7

[0118] Fig.12 A top view of a handheld gimbal provided by an embodiment of the present invention; Fig.13 A top view of another handheld gimbal provided by an embodiment of the present invention; Fig.14 A side view of a handheld gimbal provided by an embodiment of the present invention. Figure 12-14 As shown, this embodiment provides a handheld gimbal, including a first shaft arm 10b and a second shaft arm 20b, wherein the first shaft arm 10b and the second shaft arm 20b are rotatably connected via a rotating connection assembly 30, wherein the rotating connection assembly 30 includes:

[0119] The first component 31 is fixedly connected to the first shaft arm 10b. The second component 32 is connected to the first component 31 and is fixedly connected to the second shaft arm 20b. The first component 31 and the first shaft arm 10b may be detachably connected, such as by screwing, snapping, etc., or the first component 31 and the first shaft arm 10b may be non-detachably connected, such as by welding, riveting, gluing, etc., or the first component 31 and the first shaft arm 10b may be integrally formed, such as by integral injection molding, etc., which is not specifically limited in this embodiment. Similarly, the second component 32 and the second shaft arm 20b may also be detachably connected, non-detachably connected, integrally formed, etc., which will not be elaborated here.

[0120] The second component 32 and the first component 31 can be coaxially connected. Specifically, the second component 32 can be sleeved outside the first component 31 or inserted into the first component 31, or the two can be coaxially sleeved through a connecting shaft. Alternatively, in some embodiments, the second component 32 is arranged outside the first component 31, and the second component 32 can rotate around the first component 31 with the first component 31 as the center. Of course, the present invention is not limited to this.

[0121] like Figure 12-14 As shown, the second component 32 can rotate to a first position A, a middle position O and a second position B relative to the first component 31, so that the first shaft arm 10b and the second shaft arm 20b can be switched between a folded state and an unfolded state.

[0122] In this embodiment, if Fig.12 As shown, when the second component 32 is in the first position A relative to the first component 31, the first shaft arm 10b and the second shaft arm 20b are in an unfolded state; when the second component 32 is in the second position B relative to the first component 31, the first shaft arm 10b and the second shaft arm 20b are in a folded state.

[0123] In such Fig.12 In the structure shown, since the first component 31 is fixedly connected to the first shaft arm 10b, and the second component 32 is fixedly connected to the second shaft arm 20b, the second shaft arm 20b can rotate clockwise from the middle position O to the unfolded state during the process of the second component 32 rotating from the middle position O to the first position A relative to the first component 31. In addition, during the process of the second component 32 rotating from the middle position O to the second position B relative to the first component 31, the second shaft arm 20b can rotate counterclockwise from the middle position O to the folded state.

[0124] Of course, it can be understood that in other embodiments, for example Fig.13As shown, when the second component 32 is in the first position A relative to the first component 31, the first shaft arm 10b and the second shaft arm 20b are in the folded state; when the second component 32 is in the second position B relative to the first component 31, the first shaft arm 10b and the second shaft arm 20b are in the unfolded state. As long as the second component 32 can rotate relative to the first component 31, the second shaft arm 20b can be driven to rotate relative to the first shaft arm 10b to switch between the folded state and the unfolded state.

[0125] like Figures 4 to 6 As shown, a damping assembly 301 is provided between the first component 31 and the second component 32, and the damping assembly 301 includes a first damping portion 301a and a second damping portion 301b, wherein the first damping portion 301a is used to prevent the second component 32 from rotating from the middle position O to the first position A, and the second damping portion 301b is used to prevent the second component 32 from rotating from the middle position O to the second position B. By providing the damping assembly 301, the unfolding speed and the folding speed of the foldable device can be effectively reduced, thereby improving the operational safety to a certain extent.

[0126] In this embodiment, the first rotation damping provided by the first damping part 301a and the second rotation damping provided by the second damping part 301b have different change rates. Thus, the unfolding speed and folding speed of the foldable device can be different to meet personalized needs. It should be noted that the change of the first rotation damping can be from large to small, or from small to large, which is not limited in this embodiment.

[0127] The handheld gimbal provided in the embodiment of the present invention can effectively reduce the unfolding and folding speeds because a damping component is provided in the rotating connection component between the first axis arm and the second axis arm, thereby solving the problem of pinching the hands to a certain extent and ensuring safe use. In addition, when switching between the folded state and the unfolded state, the corresponding damping change rate is different. Therefore, different unfolding speeds and folding speeds can be achieved to meet personalized needs.

[0128] Embodiment 8

[0129] This embodiment is further described on the basis of the seventh embodiment. Specifically, in this embodiment, Fig.12As shown, when the second component 32 is in the first position A relative to the first component 31, the first shaft arm 10b and the second shaft arm 20b are in an unfolded state; when the second component 32 is in the second position B relative to the first component 31, the first shaft arm 10b and the second shaft arm 20b are in a folded state, the first damping part 301a and the second damping part 301b can be reasonably designed so that the change rate of the first rotation damping provided by the first damping part 301a can be greater than the change rate of the second rotation damping provided by the second damping part 301a. In this way, the fast unfolding and slow folding of the foldable device can be achieved. The fast unfolding can effectively ensure the operating efficiency, while the slow folding can effectively improve the operating safety and prevent the hand from being pinched. It should be noted that since the damping component is added to the present invention, the unfolding speed of the foldable device is lower than the unfolding speed in the prior art even compared with the prior art.

[0130] In other embodiments, when the second component 32 is in the first position A relative to the first component 31, the first shaft arm 10b and the second shaft arm 20b are in a folded state; when the second component 32 is in the second position B relative to the first component 31, the first shaft arm 10b and the second shaft arm 20b are in an unfolded state, the first damping part 301a and the second damping part 301b can be reasonably designed so that the change rate of the first rotation damping provided by the first damping part 301a can be smaller than the change rate of the second rotation damping provided by the second damping part 301a. Similarly, the fast unfolding and slow folding of the foldable device can be achieved.

[0131] Of course, it should be understood that in some special application scenarios, it may be desired that the unfolding speed of the foldable device is lower than the folding speed of the foldable device, that is, to achieve the effect of fast folding and slow unfolding. Those skilled in the art can specifically design the first damping part 301a and the second damping part 301b to achieve the desired purpose, which will not be described in detail in this embodiment.

[0132] Embodiment 9

[0133] This embodiment provides a specific structure of a damping component 301 based on the seventh embodiment or the eighth embodiment, such as Figure 4-Figure 6 As shown, the first damping portion 301a and the second damping portion 301b of the damping assembly 301 of this embodiment are located on the first component 31, and the second component 32 includes an abutting device 321 for abutting against the first damping portion 301a and the second damping portion 301b.

[0134] The abutting device 321 abuts against the first damping portion 301 a to generate a first rotation damping, and the abutting device 321 abuts against the second damping portion 301 b to generate a second rotation damping.

[0135] Further, the resisting device 321 may be elastic; and / or the first damping portion 301a may be elastic; and / or the second damping portion 301b may be elastic.

[0136] In this embodiment, preferably, the resisting device 321 is elastic, and includes an elastic member 3211 and a resisting member 3212 , the elastic member 3211 resists against the resisting member 3212 , and the resisting member 3212 is used for resisting contact with the first damping portion 301a and the second damping portion 301b .

[0137] Please continue to refer to Figure 7 The second component 32 may further include a sleeve 322 , in which the abutting device 321 may be accommodated. The abutting device 321 and the sleeve 322 are circumferentially fixed, and the abutting device 321 may be axially retractable in the sleeve 322 .

[0138] The foldable device provided in the embodiment of the present invention may further include a rotating shaft 323, the rotating shaft 323 passes through the first component 31 and the second component 32, and the two ends of the rotating shaft 323 may be respectively provided with axial stoppers for axially fixing the first component 31 and the second component 32. At least one of the axial stoppers at the two ends of the rotating shaft 323 may be detachably connected to the rotating shaft 323.

[0139] For the first component 31, in this embodiment, Figure 5 As shown, the first component 31 may include a cam, and the cam includes a first cam wall C1 and a second cam wall C2 . The first cam wall C1 forms a first damping portion 301 a , and the second cam wall C2 forms a second damping portion 301 b .

[0140] In this embodiment, the first cam wall C1 may be an inclined surface, the second cam wall C2 may be an inclined surface, and the slope of the first cam wall C1 is different from the slope of the second cam wall C2. In this embodiment, preferably, the slope of the first cam wall C1 is greater than the slope of the second cam wall C2.

[0141] In some other embodiments, the first cam wall C1 may be a curved surface, the second cam wall C2 may be a curved surface, and the curvature of the first cam wall C1 is different from the curvature of the second cam wall C2. The curvature of the first cam wall C1 is greater than the curvature of the second cam wall C2.

[0142] Furthermore, when the second component 32 rotates from the middle position O to the first position A, the push device 321 slides from the top of the cam to the bottom of the first cam wall C1; when the second component 32 rotates from the middle position O to the second position B, the push device 321 slides from the top of the cam to the bottom of the second cam wall C2.

[0143] Furthermore, this embodiment is preferred, as Figure 5As shown, the first component 31 may include two cams, and the two cams are arranged in a centrally symmetrical manner with the axis of the first component 31 as the center.

[0144] The shape of one end of the abutting device 321 for abutting the cam can match the shape formed by the two cams. When the second component 32 is in the first position A relative to the first component 31, the end of the abutting device 321 for abutting the cam is in a snap-fit ​​state with the two cams.

[0145] The structures and functions of the components in the rotating connection assembly described in this embodiment are the same as those in Embodiment 3. For details, please refer to the description of Embodiment 3 and will not be repeated here. The difference between this embodiment and Embodiment 3 is that the first body is specifically the first shaft arm, and the second body is specifically the second shaft arm.

[0146] Embodiment 10

[0147] like Figures 4 to 6 As shown, an embodiment of the present invention further provides a rotating connection assembly 30, including: a first component 31 and a second component 32. The second component 32 is connected to the first component 31; specifically, the first component 31 and the second component 32 can be coaxially connected, for example, the second component 32 can be sleeved outside the first component 31 or inserted into the first component 31, or the two are coaxially sleeved through a connecting shaft. Alternatively, in some embodiments, the second component 32 is arranged outside the first component 31, and the second component 32 can rotate around the first component 31 with the first component 31 as the center. Of course, the present invention is not limited to this.

[0148] It should be noted that the second component 32 can rotate relative to the first component 31 to the first position A, the middle position O and the second position B. The first component 31 can be used to be fixedly connected to the first body, and the second component 32 is used to be fixedly connected to the second body, so that the first body and the second body can be relatively rotated to a folded state and an unfolded state. When the second component 32 rotates relative to the first component 31, it can drive the first body 10 and the second body 20 to switch between the folded state and the unfolded state.

[0149] When in use, the first component 31 can be connected to the first body 10, and the second component 32 can be connected to the second body 20. Fig.10 As shown, when the second component 32 is in the first position A relative to the first component 31, the first body 10 and the second body 20 are in an unfolded state; when the second component 32 is in the second position B relative to the first component 31, the first body 10 and the second body 20 are in a folded state.

[0150] In such Fig.10In the structure shown, since the first component 31 is fixedly connected to the first body 10, and the second component 32 is fixedly connected to the second body 20, the second body 20 can rotate clockwise from the middle position O to the unfolded state during the process of the second component 32 rotating from the middle position O to the first position A relative to the first component 31. In addition, during the process of the second component 32 rotating from the middle position O to the second position B relative to the first component 31, the second body 20 can rotate counterclockwise from the middle position O to the folded state.

[0151] Of course, it is understandable that in other embodiments, when the second component 32 is in the first position A relative to the first component 31, the first body 10 and the second body 20 are in the folded state; when the second component 32 is in the second position B relative to the first component 31, the first body 10 and the second body 20 are in the unfolded state. As long as the second component 32 can rotate relative to the first component 31 to drive the second body 20 to rotate relative to the first body 10 and switch between the folded state and the unfolded state, it will be sufficient.

[0152] like Figures 4 to 6 As shown, a damping assembly 301 is provided between the first component 31 and the second component 32, and the damping assembly 301 includes a first damping portion 301a and a second damping portion 301b, wherein the first damping portion 301a is used to prevent the second component 32 from rotating from the middle position O to the first position A, and the second damping portion 301b is used to prevent the second component 32 from rotating from the middle position O to the second position B. By providing the damping assembly 301, the unfolding speed and the folding speed of the foldable device can be effectively reduced, thereby improving the operational safety to a certain extent.

[0153] In this embodiment, the first rotation damping provided by the first damping part 301a and the second rotation damping provided by the second damping part 301b have different change rates. Thus, the unfolding speed and folding speed of the foldable device connected to the rotating connection assembly can be different to meet personalized needs. It should be noted that the change of the first rotation damping can be from large to small, or from small to large, which is not limited in this embodiment.

[0154] The rotating connection assembly provided in the embodiment of the present invention has a damping assembly. When in use, the rotating connection assembly is connected to the foldable device composed of a first body and a second body, which can effectively reduce the unfolding and folding speeds of the foldable device, solve the problem of pinching hands to a certain extent, and ensure safe use. In addition, when switching between the folded state and the unfolded state, the corresponding damping change rate is different. Therefore, different unfolding speeds and folding speeds can be achieved to meet personalized needs.

[0155] Embodiment 11

[0156] This embodiment is further described on the basis of the tenth embodiment. Specifically, in this embodiment, Fig.10 and Fig.11 As shown, when the second component 32 is in the first position A relative to the first component 31, the first body 10 and the second body 20 are in an unfolded state; when the second component 32 is in the second position B relative to the first component 31, the first body 10 and the second body 20 are in a folded state, the first damping part 301a and the second damping part 301b can be reasonably designed so that the change rate of the first rotation damping provided by the first damping part 301a can be greater than the change rate of the second rotation damping provided by the second damping part 301a. In this way, the fast unfolding and slow folding of the foldable device can be achieved. The fast unfolding can effectively ensure the operating efficiency, while the slow folding can effectively improve the operating safety and prevent the hand from being pinched. It should be noted that since the damping component is added to the present invention, the unfolding speed of the foldable device is lower than the unfolding speed in the prior art even compared with the prior art.

[0157] In other embodiments, when the second component 32 is in the first position A relative to the first component 31, the first body 10 and the second body 20 are in a folded state; when the second component 32 is in the second position B relative to the first component 31, the first body 10 and the second body 20 are in an unfolded state, the first damping part 301a and the second damping part 301b can be reasonably designed so that the change rate of the first rotation damping provided by the first damping part 301a can be smaller than the change rate of the second rotation damping provided by the second damping part 301a. Similarly, the fast unfolding and slow folding of the foldable device can be achieved.

[0158] Of course, it should be understood that in some special application scenarios, it may be desired that the unfolding speed of the foldable device is lower than the folding speed of the foldable device, that is, to achieve the effect of fast folding and slow unfolding. Those skilled in the art can specifically design the first damping part 301a and the second damping part 301b to achieve the desired purpose, which will not be described in detail in this embodiment.

[0159] Embodiment 12

[0160] This embodiment provides a specific structure of a damping component 301 based on the ninth embodiment or the tenth embodiment, such as Figure 4-Figure 6 As shown, the first damping portion 301a and the second damping portion 301b of the damping assembly 301 of this embodiment are located on the first component 31, and the second component 32 includes an abutting device 321 for abutting against the first damping portion 301a and the second damping portion 301b.

[0161] The abutting device 321 abuts against the first damping portion 301 a to generate a first rotation damping, and the abutting device 321 abuts against the second damping portion 301 b to generate a second rotation damping.

[0162] Further, the resisting device 321 may be elastic; and / or the first damping portion 301a may be elastic; and / or the second damping portion 301b may be elastic.

[0163] In this embodiment, preferably, the resisting device 321 is elastic, and includes an elastic member 3211 and a resisting member 3212 , the elastic member 3211 resists against the resisting member 3212 , and the resisting member 3212 is used for resisting contact with the first damping portion 301a and the second damping portion 301b .

[0164] Please continue to refer to Figure 7 The second component 32 may further include a sleeve 322 , in which the abutting device 321 may be accommodated. The abutting device 321 and the sleeve 322 are circumferentially fixed, and the abutting device 321 may be axially retractable in the sleeve 322 .

[0165] The rotary connection assembly provided in the embodiment of the present invention may further include a rotating shaft 323, the rotating shaft 323 passes through the first component 31 and the second component 32, and the two ends of the rotating shaft 323 may be respectively provided with axial stoppers for axially fixing the first component 31 and the second component 32. At least one of the axial stoppers at the two ends of the rotating shaft 323 may be detachably connected to the rotating shaft 323.

[0166] For the first component 31, in this embodiment, Figure 5 As shown, the first component 31 may include a cam, and the cam includes a first cam wall C1 and a second cam wall C2 . The first cam wall C1 forms a first damping portion 301 a , and the second cam wall C2 forms a second damping portion 301 b .

[0167] In this embodiment, the first cam wall C1 may be an inclined surface, the second cam wall C2 may be an inclined surface, and the slope of the first cam wall C1 is different from the slope of the second cam wall C2. In this embodiment, preferably, the slope of the first cam wall C1 is greater than the slope of the second cam wall C2.

[0168] In some other embodiments, the first cam wall C1 may be a curved surface, the second cam wall C2 may be a curved surface, and the curvature of the first cam wall C1 is different from the curvature of the second cam wall C2. The curvature of the first cam wall C1 is greater than the curvature of the second cam wall C2.

[0169] Furthermore, when the second component 32 rotates from the middle position O to the first position A, the push device 321 slides from the top of the cam to the bottom of the first cam wall C1; when the second component 32 rotates from the middle position O to the second position B, the push device 321 slides from the top of the cam to the bottom of the second cam wall C2.

[0170] Furthermore, this embodiment is preferred, as Figure 5 As shown, the first component 31 may include two cams, and the two cams are arranged in a centrally symmetrical manner with the axis of the first component 31 as the center.

[0171] The shape of one end of the abutting device 321 for abutting the cam can match the shape formed by the two cams. When the second component 32 is in the first position A relative to the first component 31, the end of the abutting device 321 for abutting the cam is in a snap-fit ​​state with the two cams.

[0172] The structures and functions of the components in the rotating connection assembly described in this embodiment are the same as those in the third embodiment. For details, please refer to the description of the third embodiment, and no further details will be given here.

[0173] In several embodiments provided in the present invention, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.

[0174] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A foldable device, characterized in that: The invention comprises a first body and a second body, wherein the first body and the second body are rotatably connected via a rotating connection assembly, wherein the rotating connection assembly comprises: A first component, fixedly connected to the first body; a second component connected to the first component and fixedly connected to the second body; the second component can rotate relative to the first component to a first position, an intermediate position and a second position, so that the first body and the second body can switch between a folded state and an unfolded state; A damping assembly is provided between the first component and the second component, the damping assembly comprising a first damping portion and a second damping portion, the first damping portion is used to prevent the second component from rotating from the intermediate position to the first position, and the second damping portion is used to prevent the second component from rotating from the intermediate position to the second position; The first rotation damping provided by the first damping portion and the second rotation damping provided by the second damping portion have different changing rates, and the first component has different unfolding speed and folding speed relative to the second component; The first damping part and the second damping part are located on the first component, and the second component includes abutting devices for abutting against the first damping part and the second damping part; The abutting device abuts against the first damping part to generate the first rotation damping, and the abutting device abuts against the second damping part to generate the second rotation damping; The resisting device is elastic; and the first damping part is elastic; and / or the second damping part is elastic.

2. The foldable device according to claim 1, characterized in that: When the second component is in the first position relative to the first component, the first body and the second body are in an unfolded state; When the second component is in the second position relative to the first component, the first body and the second body are in a folded state.

3. The foldable device according to claim 2, characterized in that: A change rate of a first rotation damping provided by the first damping portion is greater than a change rate of a second rotation damping provided by the second damping portion.

4. The foldable device according to claim 1, characterized in that: The abutting device has elasticity, and comprises an elastic member and an abutting member, wherein the elastic member abuts against the abutting member, and the abutting member is used for abutting contact with the first damping part and the second damping part.

5. The foldable device according to claim 4, characterized in that: The second component further includes a sleeve, the abutting device is accommodated in the sleeve, the abutting device is circumferentially fixed to the sleeve, and the abutting device can axially extend and retract in the sleeve.

6. The foldable device according to claim 5, characterized in that: It also includes a rotating shaft, which passes through the first component and the second component, and both ends of the rotating shaft are respectively provided with axial limiters for axially fixing the first component and the second component.

7. The foldable device according to claim 6, characterized in that: At least one of the axial limiting members at both ends of the rotating shaft is detachably connected to the rotating shaft.

8. The foldable device according to any one of claims 4 to 7, characterized in that: The first component includes a cam, and the cam includes a first cam wall and a second cam wall. The first cam wall forms the first damping portion, and the second cam wall forms the second damping portion.

9. The foldable device according to claim 8, characterized in that: The first cam wall is an inclined surface, the second cam wall is an inclined surface, and the slope of the first cam wall is different from the slope of the second cam wall.

10. The foldable device according to claim 8, characterized in that: The first cam wall is a curved surface, the second cam wall is a curved surface, and the curvature of the first cam wall is different from the curvature of the second cam wall.

11. The foldable device according to claim 8, characterized in that: During the rotation of the second component from the intermediate position to the first position, the abutting device slides from the top of the cam to the bottom of the first cam wall; During the rotation of the second component from the intermediate position to the second position, the abutting device slides from the top of the cam to the bottom of the second cam wall.

12. The foldable device according to claim 9, characterized in that: The slope of the first cam wall is greater than the slope of the second cam wall.

13. The foldable device according to claim 10, characterized in that: The curvature of the first cam wall is greater than the curvature of the second cam wall.

14. The foldable device according to claim 8, characterized in that: The first component includes two cams, and the two cams are arranged in a centrally symmetrical manner with the axis of the first component as the center.

15. The foldable device according to claim 14, characterized in that: The shape of one end of the abutting device for abutting against the cam matches the shape formed by the two cams. When the second component is in the first position relative to the first component, the end of the abutting device for abutting against the cam is in an engaged state with the two cams.

16. An unmanned aerial vehicle, characterized in that: The invention comprises an arm and a body, wherein the arm and the body are rotatably connected via a rotating connection assembly, wherein the rotating connection assembly comprises: A first component, fixedly connected to the fuselage; a second component connected to the first component and fixedly connected to the machine arm; the second component can rotate relative to the first component to a first position, an intermediate position and a second position, so that the machine arm and the machine body can switch between a folded state and an unfolded state; A damping assembly is provided between the first component and the second component, the damping assembly comprising a first damping portion and a second damping portion, the first damping portion is used to prevent the second component from rotating from the intermediate position to the first position, and the second damping portion is used to prevent the second component from rotating from the intermediate position to the second position; The first rotation damping provided by the first damping portion and the second rotation damping provided by the second damping portion have different changing rates, so that the first component has different unfolding speed and folding speed relative to the second component; The first damping part and the second damping part are located on the first component, and the second component includes abutting devices for abutting against the first damping part and the second damping part; The abutting device abuts against the first damping part to generate the first rotation damping, and the abutting device abuts against the second damping part to generate the second rotation damping; The resisting device is elastic; and the first damping part is elastic; and / or the second damping part is elastic.

17. The unmanned aerial vehicle according to claim 16, characterized in that: When the second component is in the first position relative to the first component, the arm and the fuselage are in an unfolded state; When the second component is in the second position relative to the first component, the arm and the body are in a folded state.

18. The unmanned aerial vehicle according to claim 17, characterized in that: A change rate of a first rotation damping provided by the first damping portion is greater than a change rate of a second rotation damping provided by the second damping portion.

19. The unmanned aerial vehicle according to claim 18, characterized in that: The abutting device has elasticity, and comprises an elastic member and an abutting member, wherein the elastic member abuts against the abutting member, and the abutting member is used for abutting contact with the first damping part and the second damping part.

20. The unmanned aerial vehicle according to claim 19, characterized in that: The second component further includes a sleeve, the abutting device is accommodated in the sleeve, the abutting device is circumferentially fixed to the sleeve, and the abutting device can axially extend and retract in the sleeve.

21. The unmanned aerial vehicle according to claim 20, characterized in that: It also includes a rotating shaft, which passes through the first component and the second component, and both ends of the rotating shaft are respectively provided with axial limiters for axially fixing the first component and the second component.

22. The unmanned aerial vehicle according to claim 21, characterized in that: At least one of the axial limiting members at both ends of the rotating shaft is detachably connected to the rotating shaft.

23. The unmanned aerial vehicle according to any one of claims 16 to 22, characterized in that: The first component includes a cam, and the cam includes a first cam wall and a second cam wall. The first cam wall forms the first damping portion, and the second cam wall forms the second damping portion.

24. The unmanned aerial vehicle according to claim 23, characterized in that: The first cam wall is an inclined surface, the second cam wall is an inclined surface, and the slope of the first cam wall is different from the slope of the second cam wall.

25. The unmanned aerial vehicle according to claim 23, characterized in that: The first cam wall is a curved surface, the second cam wall is a curved surface, and the curvature of the first cam wall is different from the curvature of the second cam wall.

26. The unmanned aerial vehicle according to claim 23, characterized in that: During the rotation of the second component from the intermediate position to the first position, the abutting device slides from the top of the cam to the bottom of the first cam wall; During the rotation of the second component from the intermediate position to the second position, the abutting device slides from the top of the cam to the bottom of the second cam wall.

27. The unmanned aerial vehicle according to claim 24, characterized in that: The slope of the first cam wall is greater than the slope of the second cam wall.

28. The unmanned aerial vehicle according to claim 25, characterized in that: The curvature of the first cam wall is greater than the curvature of the second cam wall.

29. The unmanned aerial vehicle according to claim 23, characterized in that: The first component includes two cams, and the two cams are arranged in a centrally symmetrical manner with the axis of the first component as the center.

30. The unmanned aerial vehicle according to claim 29, characterized in that: The shape of one end of the abutting device for abutting against the cam matches the shape formed by the two cams. When the second component is in the first position relative to the first component, the end of the abutting device for abutting against the cam is in an engaged state with the two cams.

31. A handheld gimbal, characterized in that: The invention comprises a first shaft arm and a second shaft arm, wherein the first shaft arm and the second shaft arm are rotatably connected via a rotating connection assembly; wherein the rotating connection assembly comprises: A first component, fixedly connected to the first shaft arm; A second component is connected to the first component and fixedly connected to the second shaft arm; the second component can rotate relative to the first component to a first position, an intermediate position and a second position, so that the first shaft arm and the second shaft arm can switch between a folded state and an unfolded state; A damping assembly is provided between the first component and the second component, the damping assembly comprising a first damping portion and a second damping portion, the first damping portion is used to prevent the second component from rotating from the intermediate position to the first position, and the second damping portion is used to prevent the second component from rotating from the intermediate position to the second position; The first rotation damping provided by the first damping portion and the second rotation damping provided by the second damping portion have different changing rates, so that the first component has different unfolding speed and folding speed relative to the second component; The first damping part and the second damping part are located on the first component, and the second component includes abutting devices for abutting against the first damping part and the second damping part; The abutting device abuts against the first damping part to generate the first rotation damping, and the abutting device abuts against the second damping part to generate the second rotation damping; The resisting device is elastic; and the first damping part is elastic; and / or the second damping part is elastic.

32. The handheld gimbal according to claim 31, characterized in that: When the second component is in the first position relative to the first component, the first shaft arm and the second shaft arm are in an unfolded state; When the second component is in the second position relative to the first component, the first shaft arm and the second shaft arm are in a folded state.

33. The handheld gimbal according to claim 32, characterized in that: A change rate of a first rotation damping provided by the first damping portion is greater than a change rate of a second rotation damping provided by the second damping portion.

34. The handheld gimbal according to claim 31, characterized in that: The abutting device is elastic; the abutting device comprises an elastic member and an abutting member, the elastic member abuts against the abutting member, and the abutting member is used for abutting contact with the first damping part and the second damping part.

35. The handheld gimbal according to claim 34, characterized in that: The second component further includes a sleeve, the abutting device is accommodated in the sleeve, the abutting device is circumferentially fixed to the sleeve, and the abutting device can axially extend and retract in the sleeve.

36. The handheld gimbal according to claim 35, characterized in that: It also includes a rotating shaft, which passes through the first component and the second component, and both ends of the rotating shaft are respectively provided with axial limiters for axially fixing the first component and the second component.

37. The handheld gimbal according to claim 36, characterized in that: At least one of the axial limiting members at both ends of the rotating shaft is detachably connected to the rotating shaft.

38. The handheld gimbal according to any one of claims 31 to 37, characterized in that: The first component includes a cam, and the cam includes a first cam wall and a second cam wall. The first cam wall forms the first damping portion, and the second cam wall forms the second damping portion.

39. The handheld gimbal according to claim 38, characterized in that: The first cam wall is an inclined surface, the second cam wall is an inclined surface, and the slope of the first cam wall is different from the slope of the second cam wall.

40. The handheld gimbal according to claim 38, characterized in that: The first cam wall is a curved surface, the second cam wall is a curved surface, and the curvature of the first cam wall is different from the curvature of the second cam wall.

41. The handheld gimbal according to claim 38, characterized in that: During the rotation of the second component from the intermediate position to the first position, the abutting device slides from the top of the cam to the bottom of the first cam wall; During the rotation of the second component from the intermediate position to the second position, the abutting device slides from the top of the cam to the bottom of the second cam wall.

42. The handheld gimbal according to claim 39, characterized in that: The slope of the first cam wall is greater than the slope of the second cam wall.

43. The handheld gimbal according to claim 40, characterized in that: The curvature of the first cam wall is greater than the curvature of the second cam wall.

44. The handheld gimbal according to claim 38, characterized in that: The first component includes two cams, and the two cams are arranged in a centrally symmetrical manner with the axis of the first component as the center.

45. The handheld gimbal according to claim 44, characterized in that: The shape of one end of the abutting device for abutting against the cam matches the shape formed by the two cams. When the second component is in the first position relative to the first component, the end of the abutting device for abutting against the cam is in an engaged state with the two cams.

Images