Holder

Abstract

The utility model relates to a holder which comprises a handle and a shaft assembly, and the shaft assembly comprises a first shaft arm and a rotating shaft structure. Wherein the first shaft arm comprises a first sub-arm and a second sub-arm which are arranged on the handle; the rotating shaft structure comprises a first rotating shaft and a second rotating shaft, the first rotating shaft is fixed to the first sub-arm, the second rotating shaft is fixed to the second sub-arm, and the first rotating shaft and the second rotating shaft are arranged side by side and are in meshing transmission. Wherein the holder is arranged to be capable of being switched between an unfolded state and a folded state, and when the holder is switched between the unfolded state and the folded state, the second sub-arm is arranged to be capable of driving the second rotating shaft to rotate relative to the first rotating shaft under the action of external force.

Description

Technical Field

[0001] The present application relates to the technical field of a pan / tilt platform, and in particular to a pan / tilt platform. Background Art

[0002] A handheld gimbal can be used to fix shooting equipment. Some traditional handheld gimbals have unfolded and folded states. The overall structure of the handheld gimbal in the folded state is relatively compact, making it easy to store. In the unfolded state, the upper axis arm of the handheld gimbal can move to adjust the posture of the shooting equipment it carries, meeting the different shooting needs of users.

[0003] However, the traditional handheld gimbal has a limited range of motion of its axis arm, which makes it difficult to meet the diverse shooting needs of users.

[0004] BACKGROUND OF THE PRESENT APPLICATION The above information disclosed is only for understanding the background of the concept of the present application and may contain information that does not constitute the prior art. Utility Model Content

[0005] Based on this, it is necessary to provide a pan / tilt platform to address the above problems.

[0006] A pan head, comprising a handle and an axis assembly, wherein the axis assembly comprises:

[0007] A first shaft arm, the first shaft arm comprising a first sub-arm and a second sub-arm provided on the handle;

[0008] A rotating shaft structure, the rotating shaft structure comprising a first rotating shaft and a second rotating shaft, the first rotating shaft is fixed to the first sub-arm, the second rotating shaft is fixed to the second sub-arm, the first rotating shaft and the second rotating shaft are arranged side by side and meshed for transmission;

[0009] Wherein, the gimbal is configured to be switchable between an unfolded state and a folded state, and when the gimbal is switched between the unfolded state and the folded state, the second sub-arm is configured to be able to drive the second rotating shaft to rotate relative to the first rotating shaft under the action of an external force.

[0010] The above-mentioned gimbal of the present application includes at least the following beneficial effects: a first rotating shaft and a second rotating shaft are added, and when the gimbal is switched between a folded state and an unfolded state, the second sub-arm can drive the second rotating shaft to rotate relative to the first rotating shaft under the action of an external force, and the setting of the double rotating shaft structure of the first rotating shaft and the second rotating shaft can increase the angle change range between the first sub-arm and the second sub-arm, that is, the second sub-arm can have a larger range of motion.

[0011] In one embodiment, the rotating shaft structure also includes a base, and the first rotating shaft and the second rotating shaft are both rotatably connected to the base. When the second rotating shaft rotates relative to the first rotating shaft driven by the second sub-arm, it can synchronously drive the base to rotate around the axis of the first rotating shaft.

[0012] In one embodiment, the rotating shaft structure also includes a stop member and an elastic member, at least one of the outer circumference of the first rotating shaft and the outer circumference of the second rotating shaft is provided with a limiting portion, the stop member is provided with a stop protrusion, and the stop protrusion is located on the rotation path of the limiting portion to limit the rotation stroke of the first rotating shaft and the second rotating shaft, and the stop member is provided with a first through hole and a second through hole, one end of the first rotating shaft is passed through the first through hole to be rotatably connected to the base, and one end of the second rotating shaft is passed through the second through hole to be rotatably connected to the base, one end of the elastic member elastically abuts against a side of the stop member facing away from the limiting portion, and the other end of the elastic member elastically abuts against the base, and when the second rotating shaft rotates relative to the first rotating shaft under the drive of the second sub-arm, it can synchronously drive the base and the stop member to rotate around the axis of the first rotating shaft.

[0013] In one embodiment, the stop protrusion has a first stop surface and a second stop surface arranged opposite to each other on the rotation path of the limiting portion; in the folded state, one side of the limiting portion abuts against the first stop surface, and the angle between the length extension direction of the first sub-arm and the length extension direction of the second sub-arm is a first predetermined angle; in the unfolded state, the other side of the limiting portion abuts against the second stop surface, and the angle between the length extension direction of the first sub-arm and the length extension direction of the second sub-arm is a second predetermined angle, and the difference between the first predetermined angle and the second predetermined angle is greater than 180°.

[0014] In one embodiment, the outer circumferential surface of the first rotating shaft and the outer circumferential surface of the second rotating shaft are each provided with a limiting portion, and the stop member is provided with two stopping protrusions, one of the stopping protrusions is located on the rotation path of the limiting portion on the first rotating shaft, and the other of the stopping protrusions is located on the rotation path of the limiting portion on the second rotating shaft, so as to limit the rotation stroke of the first rotating shaft and the second rotating shaft.

[0015] In one embodiment, the outer contour of the cross section of the first rotating shaft where the limiting portion is located is larger than the inner contour of the cross section of the first through hole, so as to limit the movement of the stopper in the axial direction of the first rotating shaft.

[0016] In one embodiment, the outer contour of the cross section of the second rotating shaft where the limiting portion is located is larger than the inner contour of the cross section of the second through hole, so as to limit the movement of the stopper in the axial direction of the second rotating shaft.

[0017] In one embodiment, the first stop surface is disposed at an obtuse angle to a surface of the stop member facing away from the elastic member.

[0018] In one embodiment, the second stop surface is disposed at an obtuse angle to a surface of the stop member facing away from the elastic member.

[0019] In one embodiment, the elastic member includes a first compression spring and a second compression spring, the first compression spring and the second compression spring are elastically supported between the stop member and the base, the first compression spring is sleeved on the outer circumference of the first rotating shaft, and the second compression spring is sleeved on the outer circumference of the second rotating shaft.

[0020] In one embodiment, the rotating shaft structure also includes a first lower retaining spring and a second lower retaining spring, and a first rotating hole and a second rotating hole are opened on the base; one end of the first rotating shaft is rotatably inserted into the first rotating hole, and the first lower retaining spring is clamped at one end of the first rotating shaft to limit one end of the first rotating shaft to the side of the base facing away from the elastic member; one end of the second rotating shaft is rotatably inserted into the second rotating hole, and the second lower retaining spring is clamped at one end of the second rotating shaft to limit one end of the second rotating shaft to the side of the base facing away from the elastic member.

[0021] In one embodiment, the rotating shaft structure also includes a top cover, and the other end of the first rotating shaft and the other end of the second rotating shaft are both rotatably connected to the top cover, and when the second rotating shaft rotates relative to the first rotating shaft driven by the second sub-arm, it can synchronously drive the top cover, the base and the stopper to rotate around the axis of the first rotating shaft.

[0022] In one embodiment, the rotating shaft structure also includes a first upper retaining spring and a second upper retaining spring, and a first through hole and a second through hole are opened on the top cover; the other end of the first rotating shaft is rotatably inserted into the first through hole, and the first upper retaining spring is clamped at the other end of the first rotating shaft to limit the other end of the first rotating shaft to the side of the top cover facing away from the stop member; the other end of the second rotating shaft is rotatably inserted into the second through hole, and the second upper retaining spring is clamped at the other end of the second rotating shaft to limit the other end of the second rotating shaft to the side of the top cover facing away from the stop member.

[0023] In one embodiment, a first meshing portion is provided on the outer circumferential surface of the first rotating shaft, and the first meshing portion is located on the side of the limiting portion facing away from the stopping protrusion; a second meshing portion is provided on the outer circumferential surface of the second rotating shaft for meshing transmission with the first meshing portion, and the second meshing portion is located on the side of the limiting portion facing away from the stopping protrusion.

[0024] In one embodiment, the rotation stroke of either the first rotating shaft or the second rotating shaft relative to the other is greater than 90°.

[0025] In one embodiment, a rotation stroke of either the first sub-arm or the second sub-arm relative to the other is greater than 180°.

[0026] In one embodiment, every time one of the first rotating shaft and the second rotating shaft rotates relative to the other by a first angle, one of the first sub-arm and the second sub-arm rotates relative to the other by a second angle, and the second angle is twice the first angle.

[0027] In one embodiment, the shaft assembly also includes a first motor, a second motor and a second shaft arm, the first motor is arranged at the top of the handle, the first motor is fixed to one end of the first sub-arm and is used to drive the rotation of the first sub-arm, the other end of the first sub-arm is fixed to the first rotating shaft, one end of the second sub-arm is fixed to the second rotating shaft, the other end of the second sub-arm is fixed to the second motor, and the second motor is connected to the second shaft arm and is used to drive the rotation of the second shaft arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A structural schematic diagram of a gimbal provided in one embodiment of the present application.

[0030] Figure 2 A structural schematic diagram of a gimbal provided in one embodiment of the present application.

[0031] Figure 3 A structural schematic diagram of a gimbal provided in one embodiment of the present application.

[0032] Figure 4 A schematic structural diagram of a rotating shaft structure provided in one embodiment of the present application.

[0033] Figure 5 A schematic structural diagram of a rotating shaft structure provided in one embodiment of the present application.

[0034] Figure 6 A schematic structural diagram of a rotating shaft structure provided in one embodiment of the present application.

[0035] Reference numerals:

[0036] 10. pan / tilt; 110. first motor; 120. first shaft arm; 121. first sub-arm; 122. second sub-arm; 210. second motor; 220. second shaft arm; 310. third motor; 320. clamping member; 400. handle; 500. rotating shaft structure; 510. first rotating shaft; 511. first meshing portion; 520. second rotating shaft; 521. second meshing portion; 530. base; 540, stop member; 541, first through hole; 542, second through hole; 543, stop protrusion; 5431, first stop surface; 5432, second stop surface; 550, elastic member; 551, first compression spring; 552, second compression spring; 560, top cover; 570, limiting portion; 581, first lower retaining spring; 582, second lower retaining spring; 591, first upper retaining spring; 592, second upper retaining spring. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0038] See also Figures 1 to 5 In some embodiments, the present application provides a gimbal 10, which includes a handle 400 and an axis assembly. Figure 1 As shown, the shaft assembly includes a first shaft arm 120 and a rotating shaft structure 500. The first shaft arm 120 includes a first sub-arm 121 and a second sub-arm 122 provided on the handle 400. Figure 4 As shown, the shaft structure 500 includes a first shaft 510 and a second shaft 520. The first shaft 510 is fixed to the first sub-arm 121, and the second shaft 520 is fixed to the second sub-arm 122. The first shaft 510 and the second shaft 520 are arranged side by side and meshed for transmission. Figure 1 , Figure 2 and Figure 3As shown, the gimbal 10 is configured to be switchable between an unfolded state and a folded state, and when the gimbal 10 is switched between the unfolded state and the folded state, the second sub-arm 122 is configured to be able to drive the second rotating shaft 520 to rotate relative to the first rotating shaft 510 under the action of an external force. The shaft assembly can be used to carry and drive the movement of a load such as a shooting device, and the shooting device can include but is not limited to electronic devices with a camera function such as mobile phones, tablets, and cameras.

[0039] The conventional pan-tilt head 10 is limited by the conventional rotation connection structure between its axis arms, and the angle variation range between its axis arms is very limited, that is, the movement range of the axis arms is limited. The gimbal 10 of the present application has at least the following beneficial effects: a first rotating shaft 510 and a second rotating shaft 520 are added. When the gimbal 10 switches between the folded state and the unfolded state, the second sub-arm 122 can drive the second rotating shaft 520 to rotate relative to the first rotating shaft 510 under the action of an external force. The dual-rotating shaft structure of the first rotating shaft 510 and the second rotating shaft 520 can distribute the torque more evenly, reduce the stress concentration of a single rotating shaft, and reduce the pressure on a single rotating shaft, thereby improving the stability and durability of the entire system and extending the service life of the gimbal. It can also increase the angle variation range between the first sub-arm 121 and the second sub-arm 122, that is, the second sub-arm 122 can have a larger range of motion, and can also allow the first sub-arm 121 and the second sub-arm 122 to fit as close as possible in the folded state, so that the structure of the first sub-arm 121 and the second sub-arm 122 in the folded state is more compact and beautiful, saving space, improving the structural stability of the gimbal 10 in the folded state, and having a smaller volume, which is more conducive to storage and carrying.

[0040] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, in one embodiment, the shaft assembly further includes a first motor 110, a second motor 210, a second shaft arm 220, a third motor 310 and a clamping member 320 for clamping a load. The first motor 110 is disposed at the top of the handle 400. The first motor 110 is fixed to one end of the first sub-arm 121 and is used to drive the rotation of the first sub-arm 121. The other end of the first sub-arm 121 is fixed to the first rotating shaft 510. One end of the second sub-arm 122 is fixed to the second rotating shaft 520. The other end of the second sub-arm 122 is fixed to the second motor 210. The second motor 210 is connected to the second shaft arm 220 and is used to drive the rotation of the second shaft arm 220. The third motor 310 and the second motor 210 are respectively connected to two ends of the second shaft arm 220 that are away from each other. The third motor 310 is connected to the clamping member 320 and is used to drive the clamping member 320 and the load to rotate.

[0041] See also Figure 4 , Figure 5 and Figure 6In some embodiments, the rotating shaft structure 500 further includes a base 530, and the first rotating shaft 510 and the second rotating shaft 520 are both rotatably connected to the base 530. When the second rotating shaft 520 rotates relative to the first rotating shaft 510 driven by the second sub-arm 122, it can synchronously drive the base 530 to rotate around the axis of the first rotating shaft 510. The base 530 can limit the positions of the first rotating shaft 510 and the second rotating shaft 520, so that the first rotating shaft 510 and the second rotating shaft 520 are arranged side by side and meshed with each other; in addition, when the second rotating shaft 520 rotates around the first rotating shaft 510, the second rotating shaft 520 can also synchronously drive the base 530 to rotate around the axis of the first rotating shaft 510. Among them, the rotating shaft structure 500 can also include a shell that is integrally covered outside the first rotating shaft 510, the second rotating shaft 520 and the base 530. When the base 530 rotates around the first rotating shaft 510, the shell of the rotating shaft structure 500 will also rotate around the axis of the first rotating shaft 510.

[0042] Specifically, Figure 4 , Figure 5 and Figure 6As shown, in some embodiments, the rotating shaft structure 500 further includes a top cover 560, a stopper 540 and an elastic member 550, at least one of the outer circumference of the first rotating shaft 510 and the outer circumference of the second rotating shaft 520 is provided with a limiting portion 570, and the stopper 540 is provided with a stopping protrusion 543, which is located on the rotation path of the limiting portion 570 to limit the rotation stroke of the first rotating shaft 510 and the second rotating shaft 520. The stopper 540 is provided with a first through hole 541 and a second through hole 542, one end of the first rotating shaft 510 is penetrated through the first through hole 541 to be rotatably connected to the base 530, one end of the second rotating shaft 520 is penetrated through the second through hole 542 to be rotatably connected to the base 530, and the other end of the first rotating shaft 510 and the other end of the second rotating shaft 520 are both rotatably connected to the top cover 560. One end of the elastic member 550 elastically abuts against the side of the stopper 540 facing away from the limiting portion 570, and the other end of the elastic member 550 elastically abuts against the base 530. When the second rotating shaft 520 is driven by the second sub-arm 122 to rotate relative to the first rotating shaft 510, it can synchronously drive the top cover 560, the base 530 and the stopper 540 to rotate around the axis of the first rotating shaft 510. The elastic member 550 can keep the stopper protrusion 543 on the stopper 540 close to the limiting portion 570, ensuring that the stopper protrusion 543 on the stopper 540 is always located on the rotation path of the limiting portion 570. The stopper 540 can limit the rotation stroke of the first rotating shaft 510 and the second rotating shaft 520 through the cooperation of the stopper protrusion 543 and the limiting portion 570. Secondly, under the elastic force of the elastic member 550, friction is also generated between the stopper 540 and the limiting portion 570. When the second rotating shaft 520 rotates around the first rotating shaft 510 to a certain angle, the friction between the stopper 540 and the limiting portion 570 can relatively fix the corresponding postures of the first sub-arm 121 and the second sub-arm 122, until an external force intervenes again to overcome the friction, so that the second sub-arm 122 can drive the second rotating shaft 520 to rotate relative to the first rotating shaft 510. In addition, the first rotating shaft 510 and the second rotating shaft 520 are both provided through the stopper 540. When the second rotating shaft 520 rotates around the first rotating shaft 510, the stopper 540 and the base 530 can also rotate around the axis of the first rotating shaft 510 driven by the second rotating shaft 520.

[0043] Furthermore, in some embodiments, when either the first rotating shaft or the second rotating shaft rotates relative to the other by a first angle, either the first sub-arm or the second sub-arm rotates relative to the other by a second angle, and the second angle is twice the first angle. This arrangement means that the first sub-arm and the second sub-arm have a faster rotation speed, which helps the user to adjust the posture of the gimbal faster, reach an ideal unfolded state or folded state faster, and improve the user experience.

[0044] Furthermore, in some embodiments, the rotational travel of either the first rotating shaft 510 or the second rotating shaft 520 relative to the other may be greater than 90°, and the rotational travel of either the first sub-arm 121 or the second sub-arm 122 relative to the other may be greater than 180°.

[0045] It should be noted that if the first rotating shaft 510 is regarded as a stationary reference system, the rotation stroke of the second rotating shaft 520 relative to the first rotating shaft 510 can be greater than 90°, and if the second rotating shaft 520 is regarded as a stationary reference system, the rotation stroke of the first rotating shaft 510 relative to the second rotating shaft 520 can be greater than 90°. Since the movement between objects is relative, when the first rotating shaft 510 is used as a reference, the second rotating shaft 520 drives the top cover 560 and the base 530 to rotate around the first rotating shaft 510. It can also be considered that when the second rotating shaft 520 is used as a reference, the first rotating shaft 510 drives the top cover 560 and the base 530 to rotate around the second rotating shaft 520. Therefore, the description of the relative movement between objects in various places in this article should be understood in a broad sense, as long as it does not violate the purpose of the invention of this application.

[0046] For example, Figure 1 , Figure 2 and Figure 3 As shown, when the second rotating shaft 520 rotates around the first rotating shaft 510, since the top cover 560 and the base 530 both rotate synchronously around the axis of the first rotating shaft 510 driven by the second rotating shaft 520, the top cover 560 and the base 530 essentially have the same rotation stroke as the second rotating shaft 520, that is, the rotation stroke of the top cover 560 relative to the first rotating shaft 510 can be greater than 90°, and the rotation stroke of the base 530 relative to the first rotating shaft 510 can be greater than 90°. The advantage of such an arrangement is that the top cover 560, the base 530, the second rotating shaft 520 and the second sub-arm 122 can all rotate from the bottom of the first sub-arm 121 to the top of the first sub-arm 121, and the rotating shaft structure 500 including the top cover 560, the base 530 and the second rotating shaft 520 will not interfere with the structure of the first sub-arm 121 to affect the movement of the second sub-arm 122 and the remaining shaft components, and the second sub-arm 122 and the remaining shaft components can have a larger range of motion.

[0047] More specifically, if Figure 5 As shown, in some embodiments, a limiting portion 570 is respectively provided on the outer circumferential surface of the first rotating shaft 510 and the outer circumferential surface of the second rotating shaft 520, and two stopping protrusions 543 are provided on the stopping member 540, one stopping protrusion 543 is located on the rotation path of the limiting portion 570 on the first rotating shaft 510, and the other stopping protrusion 543 is located on the rotation path of the limiting portion 570 on the second rotating shaft 520, so as to limit the rotation stroke of the first rotating shaft 510 and the second rotating shaft 520.

[0048] More specifically, if Figure 5 As shown, in some embodiments, the outer cross-sectional contour of the limiting portion 570 of the first rotating shaft 510 is larger than the inner cross-sectional contour of the first through hole 541 to limit the axial movement of the stopper 540 of the first rotating shaft 510 .

[0049] More specifically, if Figure 5 As shown, in some embodiments, the outer cross-sectional contour of the position-limiting portion 570 of the second rotating shaft 520 is larger than the inner cross-sectional contour of the second through hole 542 to limit the axial movement of the stopper 540 of the second rotating shaft 520 .

[0050] More specifically, if Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, the elastic member 550 includes a first compression spring 551 and a second compression spring 552, and the first compression spring 551 and the second compression spring 552 are both elastically supported between the stop member 540 and the base 530, and the first compression spring 551 is sleeved on the outer circumference of the first rotating shaft 510, and the second compression spring 552 is sleeved on the outer circumference of the second rotating shaft 520.

[0051] See also Figure 6In some embodiments, the stop protrusion 543 has a first stop surface 5431 and a second stop surface 5432 that are arranged opposite to each other on the rotation path of the limiting portion 570; in the folded state, one side of the limiting portion 570 abuts against the first stop surface 5431, and the angle between the length extension direction of the first sub-arm 121 and the length extension direction of the second sub-arm 122 is a first predetermined angle; in the unfolded state, the other side of the limiting portion 570 abuts against the second stop surface 5432, and the angle between the length extension direction of the first sub-arm 121 and the length extension direction of the second sub-arm 122 is a second predetermined angle, and the difference between the first predetermined angle and the second predetermined angle is greater than 180°. The first stop surface 5431 of the stop convex portion 543 can play a positioning role. When the limit portion 570 abuts against the first stop surface 5431, it means that the first sub-arm 121 and the second sub-arm 122 are just in the folded position, wherein the first predetermined angle between the first sub-arm 121 and the second sub-arm 122 in the folded position can be 0°, that is, the first sub-arm 121 and the second sub-arm 122 are parallel. Preferably, the first sub-arm 121 and the second sub-arm 122 can fit together, and the structure is more compact and reliable. The first stop surface 5432 of the stop convex portion 543 can also play a positioning role. When the limit portion 570 abuts against the second stop surface 5432, it means that the first sub-arm 121 and the second sub-arm 122 are just in the unfolded position. If the difference between the first predetermined angle and the second predetermined angle is greater than 180°, it means that the angle between the first sub-arm 121 and the second sub-arm 122 can change by more than 180°, that is, the angle change range between the first sub-arm 121 and the second sub-arm 122 is increased, so that the second sub-arm 122 has a larger range of motion.

[0052] Furthermore, if Figure 6 As shown, in some embodiments, the first stop surface 5431 is set at an obtuse angle with the side of the stop member 540 facing away from the elastic member 550. Such a structural setting means that when the limiting portion 570 on the first rotating shaft 510 has abutted against the stop convex portion 543 on the stop member 540, that is, when the limiting portion 570 on the first rotating shaft 510 is at the limit position, if the external force has a tendency to continue to make the limiting portion 570 on the first rotating shaft 510 and the stop convex portion 543 on the stop member 540 get closer, since the first stop surface 5431 is set at an obtuse angle with the side of the stop member 540 facing away from the elastic member 550, the first stop surface 5431 is abutted by the limiting portion 570, and the stop member 540 has a tendency to squeeze the elastic member 550. It can be considered that the stop member 540 can be slightly lifted in the direction away from the limiting portion 570, which can avoid damage between the stop convex portion 543 and the limiting portion 570 due to excessive force.

[0053] Furthermore, if Figure 6As shown, in some embodiments, the second stop surface 5432 is set at an obtuse angle with the side of the stop member 540 facing away from the elastic member 550. Such a structural setting means that when the limiting portion 570 on the second rotating shaft 520 has abutted against the stop convex portion 543 on the stop member 540, that is, when the limiting portion 570 on the second rotating shaft 520 is at the limit position, if the external force has a tendency to continue to make the limiting portion 570 on the second rotating shaft 520 and the stop convex portion 543 on the stop member 540 get closer, since the second stop surface 5432 is set at an obtuse angle with the side of the stop member 540 facing away from the elastic member 550, the second stop surface 5432 is abutted by the limiting portion 570, and the stop member 540 has a tendency to squeeze the elastic member 550. It can be considered that the stop member 540 can be slightly lifted in the direction away from the limiting portion 570, which can avoid damage between the stop convex portion 543 and the limiting portion 570 due to excessive force.

[0054] See also Figure 6 In some embodiments, the rotating shaft structure 500 further includes a first lower retaining spring 581 and a second lower retaining spring 582, and the base 530 is provided with a first rotating hole and a second rotating hole; one end of the first rotating shaft 510 is rotatably inserted into the first rotating hole, and the first lower retaining spring 581 is clamped on one end of the first rotating shaft 510 to restrict one end of the first rotating shaft 510 to the side of the base 530 facing away from the elastic member 550; one end of the second rotating shaft 520 is rotatably inserted into the second rotating hole, and the second lower retaining spring 582 is clamped on one end of the second rotating shaft 520 to restrict one end of the second rotating shaft 520 to the side of the base 530 facing away from the elastic member 550. The first lower retaining spring 581 can restrict one end of the first rotating shaft 510 to the base 530, that is, restrict the axial freedom of the first rotating shaft 510 without affecting the relative rotation between the first rotating shaft 510 and the base 530. The second lower clamping spring 582 can restrict one end of the second rotating shaft 520 to the base 530 , that is, limit the axial freedom of the second rotating shaft 520 without affecting the relative rotation between the second rotating shaft 520 and the base 530 .

[0055] Specifically, Figure 6As shown, in some embodiments, the shaft structure 500 further includes a first upper retaining spring 591 and a second upper retaining spring 592, and the top cover 560 is provided with a first through hole and a second through hole; the other end of the first shaft 510 is rotatably inserted into the first through hole, and the first upper retaining spring 591 is clamped on the other end of the first shaft 510 to limit the other end of the first shaft 510 to the side of the top cover 560 facing away from the stopper 540; the other end of the second shaft 520 is rotatably inserted into the second through hole, and the second upper retaining spring 592 is clamped on the other end of the second shaft 520 to limit the other end of the second shaft 520 to the side of the top cover 560 facing away from the stopper 540. The first upper retaining spring 591 can limit one end of the first shaft 510 to the top cover 560, that is, limit the axial freedom of the first shaft 510 without affecting the relative rotation between the first shaft 510 and the top cover 560. The second upper clamping spring 592 can restrict one end of the second rotating shaft 520 to the top cover 560 , that is, limit the axial freedom of the second rotating shaft 520 without affecting the relative rotation between the second rotating shaft 520 and the top cover 560 .

[0056] Specifically, Figure 6 As shown, in some embodiments, a first meshing portion 511 is provided on the outer circumferential surface of the first rotating shaft 510, and the first meshing portion 511 is located on the side of the limiting portion 570 that is away from the stopping protrusion 543; a second meshing portion 521 that meshes with the first meshing portion 511 for transmission is provided on the outer circumferential surface of the second rotating shaft 520, and the second meshing portion 521 is located on the side of the limiting portion 570 that is away from the stopping protrusion 543.

[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

[0059] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0060] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0061] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0062] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0063] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0064] In the description of this specification, the description of reference terms "one embodiment", "other implementation methods", etc. means that the specific features, structures, materials or features described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present application. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

Claims

1. A pan / tilt head, characterized in that: The invention comprises a handle and a shaft assembly, wherein the shaft assembly comprises: A first shaft arm, the first shaft arm comprising a first sub-arm and a second sub-arm provided on the handle; A rotating shaft structure, the rotating shaft structure comprising a first rotating shaft and a second rotating shaft, the first rotating shaft is fixed to the first sub-arm, the second rotating shaft is fixed to the second sub-arm, the first rotating shaft and the second rotating shaft are arranged side by side and meshed for transmission; Wherein, the gimbal is configured to be switchable between an unfolded state and a folded state, and when the gimbal is switched between the unfolded state and the folded state, the second sub-arm is configured to be able to drive the second rotating shaft to rotate relative to the first rotating shaft under the action of an external force.

2. The pan / tilt head according to claim 1, characterized in that: The rotating shaft structure also includes a base, and the first rotating shaft and the second rotating shaft are both rotatably connected to the base. When the second rotating shaft rotates relative to the first rotating shaft driven by the second sub-arm, it can synchronously drive the base to rotate around the axis of the first rotating shaft.

3. The pan / tilt head according to claim 2, characterized in that: The rotation shaft structure also includes a stopper and an elastic member, at least one of the outer circumferential surface of the first rotation shaft and the outer circumferential surface of the second rotation shaft is provided with a limiting portion, and the stopper is provided with a stopping protrusion, and the stopping protrusion is located on the rotation path of the limiting portion to limit the rotation stroke of the first rotation shaft and the second rotation shaft. The stopper is provided with a first through hole and a second through hole, one end of the first rotation shaft is passed through the first through hole to be rotatably connected to the base, and one end of the second rotation shaft is passed through the second through hole to be rotatably connected to the base. One end of the elastic member elastically abuts against a side of the stopper facing away from the limiting portion, and the other end of the elastic member elastically abuts against the base. When the second rotation shaft rotates relative to the first rotation shaft under the drive of the second sub-arm, it can synchronously drive the base and the stopper to rotate around the axis of the first rotation shaft together.

4. The pan / tilt head according to claim 3, characterized in that: The stop protrusion has a first stop surface and a second stop surface arranged opposite to each other on the rotation path of the limiting portion; in the folded state, one side of the limiting portion abuts against the first stop surface, and the angle between the length extension direction of the first sub-arm and the length extension direction of the second sub-arm is a first predetermined angle; in the unfolded state, the other side of the limiting portion abuts against the second stop surface, and the angle between the length extension direction of the first sub-arm and the length extension direction of the second sub-arm is a second predetermined angle, and the difference between the first predetermined angle and the second predetermined angle is greater than 180°.

5. The pan / tilt head according to claim 4, characterized in that: The outer circumferential surface of the first rotating shaft and the outer circumferential surface of the second rotating shaft are each provided with a limiting portion, and the stop member is provided with two stopping protrusions, one of the stopping protrusions is located on the rotation path of the limiting portion on the first rotating shaft, and the other of the stopping protrusions is located on the rotation path of the limiting portion on the second rotating shaft, so as to limit the rotation stroke of the first rotating shaft and the second rotating shaft.

6. The pan / tilt head according to claim 5, characterized in that: The outer contour of the cross section of the first rotating shaft where the limiting portion is located is larger than the inner contour of the cross section of the first through hole, so as to limit the movement of the stopper in the axial direction of the first rotating shaft; And / or, the outer contour of the cross section of the second rotating shaft where the limiting portion is located is larger than the inner contour of the cross section of the second through hole, so as to limit the movement of the stopper in the axial direction of the second rotating shaft.

7. The pan / tilt head according to claim 4, characterized in that: The first stop surface is arranged at an obtuse angle with a surface of the stop member facing away from the elastic member; And / or, the second stop surface is arranged at an obtuse angle with a surface of the stop member facing away from the elastic member.

8. The pan / tilt head according to claim 3, characterized in that: The elastic member includes a first compression spring and a second compression spring, both of which are elastically supported between the stop member and the base, the first compression spring is sleeved on the outer circumference of the first rotating shaft, and the second compression spring is sleeved on the outer circumference of the second rotating shaft.

9. The pan / tilt head according to any one of claims 3 to 8, characterized in that: The rotating shaft structure also includes a first lower retaining spring and a second lower retaining spring, and a first rotating hole and a second rotating hole are opened on the base; one end of the first rotating shaft is rotatably inserted into the first rotating hole, and the first lower retaining spring is clamped at one end of the first rotating shaft to limit one end of the first rotating shaft to a side of the base facing away from the elastic member; one end of the second rotating shaft is rotatably inserted into the second rotating hole, and the second lower retaining spring is clamped at one end of the second rotating shaft to limit one end of the second rotating shaft to a side of the base facing away from the elastic member.

10. The pan / tilt head according to claim 9, characterized in that: The rotating shaft structure also includes a top cover, and the other end of the first rotating shaft and the other end of the second rotating shaft are both rotatably connected to the top cover. When the second rotating shaft rotates relative to the first rotating shaft under the drive of the second sub-arm, it can synchronously drive the top cover, the base and the stopper to rotate around the axis of the first rotating shaft.

11. The pan / tilt head according to claim 10, characterized in that: The rotating shaft structure also includes a first upper retaining spring and a second upper retaining spring, and a first through hole and a second through hole are opened on the top cover; the other end of the first rotating shaft is rotatably inserted into the first through hole, and the first upper retaining spring is clamped at the other end of the first rotating shaft to limit the other end of the first rotating shaft to the side of the top cover facing away from the stopper; the other end of the second rotating shaft is rotatably inserted into the second through hole, and the second upper retaining spring is clamped at the other end of the second rotating shaft to limit the other end of the second rotating shaft to the side of the top cover facing away from the stopper.

12. The pan / tilt head according to any one of claims 3 to 8, characterized in that: A first meshing portion is provided on the outer circumferential surface of the first rotating shaft, and the first meshing portion is located on the side of the limiting portion facing away from the stopping protrusion; a second meshing portion is provided on the outer circumferential surface of the second rotating shaft for meshing and transmission with the first meshing portion, and the second meshing portion is located on the side of the limiting portion facing away from the stopping protrusion; and / or, the rotational travel of either the first rotating shaft or the second rotating shaft relative to the other is greater than 90°; and / or, the rotation stroke of either the first sub-arm or the second sub-arm relative to the other is greater than 180°; And / or, each time one of the first rotating shaft and the second rotating shaft rotates relative to the other by a first angle, one of the first sub-arm and the second sub-arm rotates relative to the other by a second angle, and the second angle is twice the first angle; And / or, the shaft assembly also includes a first motor, a second motor and a second shaft arm, the first motor is arranged at the top of the handle, the first motor is fixed to one end of the first sub-arm and is used to drive the rotation of the first sub-arm, the other end of the first sub-arm is fixed to the first rotating shaft, one end of the second sub-arm is fixed to the second rotating shaft, the other end of the second sub-arm is fixed to the second motor, and the second motor is connected to the second shaft arm and is used to drive the rotation of the second shaft arm.

Images