CN215862591U

CN215862591U - Locking device for tripod head driving motor and driving equipment

Info

Publication number: CN215862591U
Application number: CN202122128557.1U
Authority: CN
Inventors: 董欣
Original assignee: SZ DJI Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-02-18
Anticipated expiration: 2031-09-03

Abstract

A locking device for a tripod head driving motor and a driving device comprising the locking device are used for locking and unlocking a rotor and a stator which move relatively, and comprise a locking mechanism arranged on the rotor and a locking matching structure arranged on the stator; wherein, locking mechanical system includes: a mount fixedly disposed on the rotor; the lock core assembly is arranged in the mounting seat and can lock and unlock the rotor and the stator; and the positioning assembly is arranged in the mounting seat and can position the lock cylinder assembly in a state of being locked with the locking matching structure and a state of being separated from the locking matching structure, wherein the positioning assembly comprises an elastic component directly abutted against the end part of the lock cylinder assembly, and the elastic component pushes the positioning assembly to be matched with the locking matching structure. The locking device of the utility model has the advantages of reduced volume and more convenient use.

Description

Locking device for tripod head driving motor and driving equipment

Technical Field

The utility model relates to the field of a tripod head driving motor, in particular to a device for locking a stator and a rotor of a tripod head motor which move relatively, and also relates to driving equipment adopting the locking device.

Background

At present, the shaft lock structure is a commonly used fixed structure for locking relative motion parts, for example, a handheld tripod head product for a camera is provided with the shaft lock structure, and when the handheld tripod head is leveled and stored, the shaft lock structure can fix a shaft arm, so that the operation of a user is facilitated and the storage of the tripod head is facilitated. In the prior art, the structure of the shaft lock mechanism is complex, the operation is complex, and the space occupied by the structure is large, so that the volume of a holder or related equipment adopting the shaft lock mechanism is increased.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention has been made to provide a locking device for locking a device having a rotor and a stator that move relative to each other to facilitate storage of the device, which overcomes or at least partially solves the above problems.

According to one aspect of the present invention, there is provided a locking device for a pan/tilt head drive motor for locking and unlocking a rotor and a stator which move relative to each other, the locking device comprising a locking mechanism provided on the rotor and a locking engagement structure provided on the stator;

wherein the locking mechanism comprises:

a mount fixedly disposed on the rotor;

the lock core assembly is arranged in the mounting seat and can lock and unlock the rotor and the stator; and

the locating component is arranged in the mounting seat and can locate the lock cylinder component in a state of being locked by the locking matching structure and a state of being separated from the locking matching structure, wherein the locating component comprises an elastic component directly abutted against the end part of the lock cylinder component, and the elastic component pushes the locating component to be matched with the locking matching structure.

Another aspect of the present invention also provides a driving apparatus having a rotor and a stator which move relatively, wherein the driving apparatus further comprises any one of the locking devices as described above.

According to one embodiment of the drive device of the utility model, the drive device comprises a pan-tilt head, a camera support or an unmanned aerial vehicle system.

The present invention provides a locking device capable of providing relative locking and unlocking between a rotor and a stator through a plug assembly and an elastic member directly abutting against the plug assembly and providing a pushing force to the plug assembly, achieving mutual locking and unlocking between two relatively moving members through a very simple structure, thereby providing convenient conditions for storage of an apparatus including the above rotor and stator while allowing the locking device to occupy a smaller space.

Drawings

Other objects and advantages of the present invention will become apparent from the following description of the utility model which refers to the accompanying drawings, and may assist in a comprehensive understanding of the utility model.

Fig. 1 is an exploded perspective view of a pan/tilt head drive motor employing a locking device according to an embodiment of the present invention;

FIG. 2 is a front view of a locking device according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A in FIG. 2;

FIG. 4 is a cross-sectional view taken along the axis of the mounting hole and the axis of the retaining hole of the locking device;

FIG. 5 is a cross-sectional view of the pan and tilt head drive motor showing the lock cylinder and operating member in a locked state;

FIG. 6 is another cross-sectional view of the pan and tilt head drive motor showing the key cylinder and catch in the locked state;

FIG. 7 is a cross-sectional view corresponding to that shown in FIG. 5 in a separated state;

fig. 8 is a sectional view corresponding to that shown in fig. 6 in a separated state.

It is noted that the drawings are not necessarily to scale and are merely illustrative in nature and not intended to obscure the reader.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention. It should be apparent that the described embodiment is one embodiment of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model without any inventive step, are within the scope of protection of the utility model.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.

Aiming at the defects of relatively complex shaft lock structure and complex operation in the prior art, the utility model provides the locking device which is relatively simple in structure and simple and convenient to operate, and the volume of the shaft lock structure can be reduced, so that the use experience of a holder or an unmanned aerial vehicle system adopting the shaft lock structure is improved.

As shown in fig. 1, a schematic perspective view of a locking device according to an embodiment of the present invention is shown. The locking device according to the present invention is used for locking and unlocking a rotor 1 and a stator 2 of a tripod head driving motor, which move relatively, the rotor 1 can be, for example, a shaft arm of a handheld tripod head, the stator 2 can be, for example, a handheld portion of the handheld tripod head, and a motor can be disposed in the handheld portion, wherein the stator 2 of the motor is relatively fixed with the handheld portion, the rotor 1 of the motor is relatively fixedly connected with the shaft arm, and the shaft arm is driven to rotate relative to the handheld portion through the rotation of the rotor 1. When the handheld tripod head needs to be stored, the locking device can lock the rotor 1 and the stator 2, so that the rotor 1 and the stator 2 are relatively fixed, and the stable state and the reliability of the storage state are ensured. The locking device according to the utility model comprises a locking mechanism 10 arranged on the rotor 1 and a locking mating structure 22 arranged on the stator 2, which locking mating structure 22 may be provided in the form of a blind hole or a groove, such as a truncated cone shaped blind hole, a spherical groove or other suitable shapes, depending on the structure of the locking mechanism 10. The interlocking between the rotor 1 and the stator 2 can be achieved by the cooperation of the locking mechanism 10 and the locking engagement structure 22.

As shown in fig. 1, the locking mechanism 10 may include a mounting base 12 fixedly disposed on the rotor 1, a plug assembly 14 disposed in the mounting base 12, and a positioning assembly 16 disposed in the mounting base 12, where the mounting base 12 is configured to receive the plug assembly 14 and the positioning assembly 16, and the positioning assembly 16 is configured to position and fix the plug assembly 14 so that the plug assembly 14 can lock and unlock the rotor 1 and the stator 2. The positioning assembly 16 is capable of positioning the plug assembly 14 in a locked condition with the lock engagement structure 22 and in a disengaged condition with the lock engagement structure 22. Further, the positioning assembly 16 includes a resilient member 162 directly abutting an end of the plug assembly 14, the resilient member 162 urging the positioning assembly 14 to mate with the lock engagement structure 22. The end part of the elastic component 162 directly abutting against the lock cylinder assembly 14 can directly apply acting force to the lock cylinder assembly 14 so that the lock cylinder assembly 14 directly locks the stator 2, and therefore the direct locking of the rotor 1 and the stator 2 is achieved, and the locking device is simple in structure and convenient to operate.

The structure of the mounting 12 of the locking device according to the utility model will be further explained below with reference to fig. 2-4. A mounting aperture 122 is provided in the mounting block 12, as shown in fig. 3, and the plug assembly 14 is movably disposed within the mounting aperture 122 such that the plug assembly 14 can pass through the mounting aperture 122 to engage the lock engagement structure 22 when moving toward the stator 2. As can be seen from fig. 3, the mounting hole 122 is a blind hole provided in the mounting seat 12 in a direction parallel to the axial direction of the rotating shaft 11 of the rotor 1, and one end of the blind hole facing the stator 2 is communicated with the outside, so that the plug assembly 14 can pass through the mounting hole 122 to be engaged with the locking engagement structure 22 of the stator 2, and the end of the mounting hole 122 far from the stator 2 is closed. Of course, as mentioned above, it is only one preferred embodiment of the mounting hole 122, and it may also adopt other structures, for example, the mounting hole 122 may also adopt the form of a through hole, as long as the elastic member 162 can be fixed in the mounting hole 122 and can provide the elastic force for the plug assembly 14. The mounting hole 122 may be generally circular in shape so that the plug assembly 14 can reciprocate within the mounting hole 122 under the resiliency of the resilient member 162.

According to an embodiment of the locking arrangement of the present invention, the resilient member 162 may include a spring disposed within the mounting aperture 122 at an end of the plug assembly 14 opposite the lock engagement structure 22. That is, the spring sets up in mounting hole 122, and the one end of spring is fixed in mounting hole 122, for example the one end of spring can be fixed in the blind end of blind hole, and the other end of spring then abuts lock core subassembly 14 for provide thrust to lock core subassembly 14, so that lock core subassembly 14 moves towards stator 2.

As shown in fig. 1, the plug assembly 14 of the locking device of the present invention includes a plug 142 and an operating member 144, the plug 142 is movably disposed in the mounting hole 122, and the operating member 144 is relatively fixedly disposed on the plug 142 for operating the axial movement of the plug 142 in the mounting hole 122. In the case where the rotor 1 and the stator 2 need to be locked by the plug assembly 14, the plug 142 may be pushed by the operating member 144 to move the plug 142 toward the stator 2, thereby being locked with respect to the stator 2, as shown in fig. 5 and 6. When it is required to separate the rotor 1 and the stator 2, the latch 142 may be moved away from the stator 2 by pushing the operating member 144 to overcome the elastic force of the elastic member 162, so as to release the locking between the rotor 1 and the stator 2, so that the rotor 1 and the stator 2 can move relatively, as shown in fig. 7 and 8.

To facilitate operation of the plug assembly 14, a dial aperture 124 is provided in the mounting block 12, the dial aperture 124 being arranged to communicate with the mounting aperture 122, and an operating member 144 extends from the plug 142 through the dial aperture 124 to the exterior of the mounting block 12 for operation thereof by a user. The actuating element 144 can be fixed to the lock cylinder 142 in various ways. The lock cylinder 142 may be provided in the form of a cylinder and the operating member 144 may be provided in the form of a rod-like member, such as a cylindrical rod, a prismatic rod, or the like. The operating member 144 may be connected to the key cylinder 142 by snapping, screwing, or the like, that is, one end of the operating member 144 is connected to the key cylinder 142 and the other end thereof is protruded through the dial hole 124 so as to be operated by the protruded portion.

The dial bore 124 of the mount 12 is arranged such that the operating member 144 is movable along the dial bore 124 to move the key cylinder 142 in the axial direction of the mounting bore 122. As shown in FIGS. 1-3, the pick hole 124 may be elongated to thereby guide and limit the movement of the operating member 144.

The operating member 144 of the locking device according to the present invention is provided with a knob 146 at an end thereof remote from the key cylinder 142, and the key cylinder assembly 14 can be operated better by providing the knob 146. The operating member 144 may be provided as a rod-shaped member, and a dial knob 146 is provided on the outermost side of the rod-shaped member from the key cylinder 142, and the size of the dial knob 146 is larger than that of the rod-shaped portion of the operating member 144, thereby enabling a user to more conveniently operate the operating member 144. Here, the dial knob 146 may be a separate member or may be integrally formed with the rod-shaped portion of the operation member 144.

The locating assembly 16 of the locking device according to an embodiment of the present invention further includes a catch 164 for catching the plug assembly 14 in a position separate from the lock engagement structure 22. That is, after the plug assembly 14 is pushed to a position separated from the stator 2 by the operating member 144, the plug assembly 14 may be locked in the mounting hole 122, and thus a separated state between the rotor 1 and the stator 2 may be maintained, ensuring a relative movement therebetween. Here, the key cylinder 142 of the key cylinder assembly 14 may be provided with a recess 148 that fits the engaging piece 164, and the key cylinder 142 may be engaged by engaging the engaging piece 164 in the recess 148 of the key cylinder 142, so that the key cylinder 142 is relatively fixed in the mounting hole 122, as shown in fig. 8.

Accordingly, catch 164 may include a catch 166 that abuts recess 148 and a resilient portion 168 that resiliently supports catch 166 on mount 12. The catching portion 166 may be provided to have a hemispherical shape, and the elastic portion 168 may be a spring or an elastic material such as rubber elastically abutting against the key cylinder 142 by support of the elastic portion 168. When the locking portion 166 abuts in the recess 148 on the key cylinder 142, the key cylinder 142 can be fixed to ensure the relative movement between the rotor 1 and the stator 2. Additionally, the detents 164 may be formed entirely of a resilient material, such as the detents 164 being formed entirely of rubber. Because of the flexibility of latch 164, when latch 166 of latch 164 does not engage recess 148 on plug 142, latch 166 may also slide along the outer wall of plug 142 without damaging both, as shown in fig. 6.

Accordingly, a latching hole 126 may be provided on the mounting base 12, a latch 164 is provided within the latching hole 126, and an end of the latch 164 can pass through the latching hole 126 to latch the plug assembly 14. The locking hole 126 may be a through hole provided in the mounting base 12, and the locking hole 126 may pass through the mounting hole 122, so that the key cylinder 142 may be locked in the mounting hole 122 by the locking piece 164 provided in the locking hole 126 passing through the locking hole 126 and engaging with the key cylinder 142.

The locking device according to the present invention can provide relative locking between the rotor and the stator through the plug assembly and the elastic member which directly abuts against the plug assembly and provides the pushing force to the plug assembly, that is, mutual locking between two relatively moving members is achieved through a very simple structure, thereby enabling convenient conditions for storage of an apparatus including the above-described rotor and stator. In addition, the lock core assembly can be locked at a position where the stator is separated by providing the locking piece, thereby enabling the rotor and the stator to move relatively during the use of the device. The locking device according to the utility model can be used for locking the rotor and the stator of the motor, wherein the rotor of the motor is equivalent to the rotor in the utility model, the stator of the motor is equivalent to the stator in the utility model, and when the stator and the rotor of the motor need to be locked relatively, the lock core component arranged on the rotor is pushed to be matched with the locking matching structure on the stator so as to lock the stator and the rotor relatively.

The utility model also relates to a drive device having a rotor and a stator which move relative to each other, further comprising a locking device as described above. As mentioned above, the driving device may be a motor, but of course, the driving device may also be other devices capable of relative movement, generally a rotating device, and when it is necessary to lock and unlock the relatively moving parts, the locking device according to the present invention may be used. Further, the drive device may comprise a pan-tilt, a camera support or an unmanned aerial vehicle system, which may typically be an unmanned aerial vehicle system comprising a pan-tilt.

The locking device can be used for locking the stator and the rotor of the driving motor between the handheld part and the shaft arm of the handheld tripod head, and can also be used for locking the stator and the rotor of other driving motors of a multi-shaft handheld tripod head. The locking device can also be used for equipment such as an airborne cloud deck, a camera bracket and the like.

It should also be noted that, in the case of the embodiments of the present invention, features of the embodiments and examples may be combined with each other to obtain a new embodiment without conflict.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and the scope of the present invention is subject to the scope of the claims.

Claims

1. A locking device for a tripod head driving motor, used for locking and unlocking a rotor and a stator of the tripod head driving motor, is characterized in that the locking device comprises a locking mechanism arranged on the rotor and a locking matching structure arranged on the stator;

wherein the locking mechanism comprises:

a mount fixedly disposed on the rotor;

2. A locking arrangement according to claim 1 wherein a mounting aperture is provided in the mounting seat, the plug assembly being movably disposed in the mounting aperture to enable the plug assembly to pass through the mounting aperture to engage the lock engagement formation when moving towards the stator.

3. The locking arrangement of claim 2 wherein the resilient member comprises a spring disposed within the mounting aperture, the spring being disposed at an end of the plug assembly opposite the locking engagement.

4. The locking device of claim 2, wherein the plug assembly includes a plug movably disposed in the mounting bore and an operating member relatively fixedly disposed on the plug for operating axial movement of the plug in the mounting bore.

5. The locking device of claim 4, wherein a dial aperture is provided in the mounting block, the dial aperture communicating with the mounting aperture, the operating member extending from the lock cylinder through the dial aperture to an exterior of the mounting block.

6. A locking arrangement according to claim 5, wherein the dial aperture is arranged such that the operating member is movable along the dial aperture to move the lock cylinder along the axis of the mounting aperture.

7. A locking arrangement according to claim 4, wherein the operating member is provided with a toggle button at an end thereof remote from the key cylinder.

8. The locking arrangement of claim 1, wherein the positioning assembly further includes a catch for catching the plug assembly in a position separate from the lock engagement structure.

9. A locking arrangement as claimed in claim 8, in which the plug of the plug assembly is provided with a recess for engagement with the catch.

10. The locking device of claim 9, wherein the retainer includes a retainer abutting the recess and an elastic portion elastically supporting the retainer on the mount.

11. A locking arrangement as claimed in claim 9, in which the catch is formed entirely of a resilient material.

12. The locking device of claim 8, wherein the mounting seat is provided with a locking hole, the locking piece is provided in the locking hole, and an end of the locking piece can pass through the locking hole to lock the plug assembly.

13. A drive device having a rotor and a stator which move relative to each other, characterized in that the drive device further comprises a locking device according to any one of claims 1-12.

14. The drive apparatus of claim 13, wherein the drive apparatus comprises a pan-tilt head, a camera mount, or an unmanned aerial vehicle system.