WO2019196035A1 - 锁定机构、云台及云台轴臂的锁定方法 - Google Patents

锁定机构、云台及云台轴臂的锁定方法 Download PDF

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Publication number
WO2019196035A1
WO2019196035A1 PCT/CN2018/082712 CN2018082712W WO2019196035A1 WO 2019196035 A1 WO2019196035 A1 WO 2019196035A1 CN 2018082712 W CN2018082712 W CN 2018082712W WO 2019196035 A1 WO2019196035 A1 WO 2019196035A1
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WO
WIPO (PCT)
Prior art keywords
locking
rotating shaft
bracket
eccentric rotating
shaft
Prior art date
Application number
PCT/CN2018/082712
Other languages
English (en)
French (fr)
Inventor
赵天菲
耶方明
Original Assignee
深圳市大疆创新科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to PCT/CN2018/082712 priority Critical patent/WO2019196035A1/zh
Priority to CN201880012036.8A priority patent/CN110325783B/zh
Publication of WO2019196035A1 publication Critical patent/WO2019196035A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
    • F16M13/04—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or holding steady relative to, a person, e.g. by chains, e.g. rifle butt or pistol grip supports, supports attached to the chest or head

Definitions

  • the present application relates to the field of cloud platform technology, and in particular, to a locking mechanism, a pan/tilt head including a locking mechanism, and a locking method of a pan/tilt arm.
  • the pan/tilt can be used to mount a camera, such as a camera, a video camera, a smart phone, etc., to fix the camera, adjust the attitude of the camera (such as changing the height and direction of the camera), and keep the camera stable. Attitude, thus achieving stable, smooth and multi-angle shooting of the camera.
  • a camera such as a camera, a video camera, a smart phone, etc.
  • the pan/tilt includes a stabilizer.
  • the stabilizer can be used for this up and down direction. The sloshing phenomenon provides stabilization.
  • the stabilizer since the stabilizer is large in the non-operating state and swings back and forth, it is necessary to lock the stabilizer in a state of transportation, pendulum, etc., so that it is in a stable state without sloshing and collision.
  • the present application provides a locking method for locking a reliable locking mechanism, a pan/tilt head and a pan/tilt arm.
  • a locking mechanism includes: a bracket including a locking abutting portion; an eccentric rotating shaft rotatably mounted to the bracket; a locking member coupled to the eccentric rotating shaft; and an elastic member elastically connecting the locking member and the eccentric rotating shaft
  • the elastic member rotates the locking member along the eccentric rotating shaft, and when the locking member abuts the locking abutting portion And the eccentric rotating shaft rotates relative to the locking member against the resistance of the elastic member to push the locking member to move.
  • a pan/tilt is provided.
  • the pan/tilt head includes: a first axle arm; a second axle arm hinged with the first axle arm; a locking mechanism mounted to the first axle arm, capable of locking the second axle arm and the first a shaft arm, the locking mechanism includes: a bracket, comprising a locking abutting portion, the bracket is fixed to the first shaft arm; an eccentric rotating shaft is rotatably mounted to the bracket; and a locking member is coupled to the eccentric rotating shaft
  • the locking member is connectable to the second shaft arm; and an elastic member elastically connects the locking member and the eccentric rotating shaft, and the elastic member abuts the locking member at the locking member
  • the portion is separated, the locking member is rotated along the eccentric rotating shaft, and when the locking member abuts the locking abutting portion, the locking member is buckled to the second axial arm.
  • the eccentric shaft rotates against the lock member against the resistance of the elastic member, pushes the lock member to move, and pulls the second
  • a locking method of a pan/tilt arm includes a first axle arm, a second axle arm hinged with the first axle arm, and a locking mechanism, the locking mechanism being mounted on the first axle arm, and the corresponding one end of the second axle arm is disposed There is a latching portion, and the locking mechanism includes a bracket mounted on the first axle arm and a latching member movably mounted on the bracket.
  • a pan/tilt is provided.
  • the pan/tilt head includes: a first axle arm; a second axle arm hinged to the first axle arm and provided with a latching portion; and a locking mechanism mounted on the first axle arm corresponding to the latching portion
  • the locking mechanism includes a bracket mounted on the first axle arm and a latching member movably mounted on the bracket; the latching member is adjacent to the second axle arm in a first direction
  • the latching portion rotates to be engaged with the latching portion, and the latching member translates to hold the latching portion to translate in a direction close to the first axle arm.
  • the locking mechanism of the present application cooperates with the eccentric rotating shaft and the elastic member to rotate the locking member along the eccentric rotating shaft to the locking abutting portion to realize the pre-locking.
  • the eccentric rotating shaft continues to rotate, the locking abutting portion pushes against the locking member, and the eccentric rotating shaft
  • the resistance of the elastic member and the relative movement of the locking member are overcome, and the shaft of the eccentric shaft is eccentric, so that the locking member is moved to realize the locking, and the reliability of the locking can be ensured by the process of pre-locking and locking.
  • FIG. 1 is a perspective view showing an embodiment of a gimbal of the present application.
  • FIG. 2 is an exploded perspective view of the pan/tilt head shown in FIG. 1.
  • FIG. 3 is a perspective view showing the eccentric rotating shaft of the locking mechanism of the pan/tilt head shown in FIG. 2.
  • FIG. 4 is a perspective view of the first bracket of the locking mechanism shown in FIG. 2.
  • Figure 5 is a perspective view of the locking member of the locking mechanism shown in Figure 2.
  • Figure 6 is a side elevational view of the pan/tilt head shown in Figure 1 with the locking mechanism unlocked.
  • Fig. 7 is a schematic cross-sectional view showing the pan/tilt head shown in Fig. 6.
  • Fig. 8 is a partial enlarged view of the pan/tilt head shown in Fig. 6.
  • Fig. 10 is a schematic cross-sectional view showing the pan/tilt head shown in Fig. 9.
  • Fig. 11 is a partial enlarged view of the pan/tilt head shown in Fig. 10.
  • Figure 12 is a side elevational view of the pan/tilt head shown in Figure 1 with the locking mechanism locked.
  • Fig. 13 is a schematic cross-sectional view showing the pan/tilt head shown in Fig. 12.
  • Fig. 14 is a partial enlarged view of the pan/tilt head shown in Fig. 13.
  • the locking mechanism of the embodiment of the present application includes a bracket, an eccentric rotating shaft, a locking member and an elastic member.
  • the bracket includes a locking abutment.
  • the eccentric shaft is rotatably mounted to the bracket.
  • the locking member is connected to the eccentric shaft.
  • the elastic member elastically connects the locking member and the eccentric shaft.
  • the elastic member rotates the locking member along the eccentric rotating shaft when the locking member is separated from the locking abutting portion.
  • the eccentric rotating shaft rotates relative to the locking member against the resistance of the elastic member to push the locking member to move.
  • the locking mechanism of the present application cooperates with the eccentric rotating shaft and the elastic member to rotate the locking member along the eccentric rotating shaft to the locking abutting portion to realize the pre-locking.
  • the pan/tilt of the embodiment of the present application includes a first axle arm, a second axle arm, and a locking mechanism.
  • the second axle arm is hinged to the first axle arm.
  • the locking mechanism is mounted to the first axle arm and is capable of locking the second axle arm and the first axle arm.
  • the locking mechanism includes a bracket, an eccentric shaft, a locking member, and an elastic member.
  • the bracket includes a locking abutment, and the bracket is fixed to the first axle arm.
  • the eccentric shaft is rotatably mounted to the bracket.
  • the locking member is connected to the eccentric shaft.
  • the locking member can be coupled to the second axle arm latch.
  • the elastic member elastically connects the locking member and the eccentric shaft.
  • the elastic member rotates the locking member along the eccentric rotating shaft when the locking member is separated from the locking abutting portion.
  • the locking component abuts the locking abutting portion
  • the locking component is buckled on the second axial arm
  • the eccentric rotating shaft rotates against the locking component against the resistance of the elastic component, pushing the locking component to move, and pulling the second axial arm to the first
  • a shaft arm is brought close to lock the first shaft arm and the second shaft arm.
  • the embodiment of the present application provides a locking method for a pan/tilt arm.
  • the pan/tilt includes a first axle arm, a second axle arm hinged to the first axle arm, and a locking mechanism.
  • the locking mechanism is mounted on the first axle arm, and the corresponding end of the second axle arm is provided with a latching portion.
  • the locking mechanism includes a bracket mounted on the first axle arm and a latching member movably mounted on the bracket.
  • the locking method comprises: rotating the locking member in a first direction to bring the locking member toward the holding portion of the second axial arm; continuing to rotate the locking member toward the first direction to buckle with the locking portion; pushing the lock
  • the fastener is configured to translate the top holding portion toward the first axial arm.
  • the pan/tilt of the embodiment of the present application includes a first axle arm, a second axle arm, and a locking mechanism.
  • the second axle arm is hinged to the first axle arm and is provided with a catching portion.
  • the locking mechanism is mounted at one end of the first shaft arm corresponding to the holding portion.
  • the locking mechanism includes a bracket mounted on the first axle arm and a latching member movably mounted on the bracket. The locking member rotates toward the locking portion of the second axial arm in the first direction, and is engaged with the locking portion. The locking member translates, and the top holding portion translates toward the first axial arm.
  • FIG. 1 is a perspective view of an embodiment of a pan/tilt head 10. Only a partial structure of the platform 10 is shown in FIG.
  • the pan/tilt 10 can be used to mount a photographing device, such as a camera, a video camera, a smart phone, etc., to fix the camera, adjust the posture of the camera (for example, change the height and direction of the camera), and keep the camera stable.
  • the posture is determined to achieve stable, smooth and multi-angle shooting of the camera.
  • the platform 10 of the embodiment of the present application may be a handheld cloud platform, and the user can hold the cloud platform 10 for shooting.
  • the PTZ 10 can provide stabilization during the user's travel shooting to ensure the quality of the image.
  • the pan/tilt head 10 includes a first axle arm 20, a second axle arm 30, and a locking mechanism 40.
  • the second axle arm 30 is hinged to the first axle arm 20.
  • One end of the second axle arm 30 is rotatably coupled to one end of the first axle arm 20 via a hinge shaft 50. Only a portion of the first and second axle arms 20, 30 are shown in FIG.
  • the pan/tilt head 10 is a multi-axis pan/tilt head, such as a three-axis pan/tilt head, including a pitch axis (Pitch axis), a translation axis (YAW axis), and a roll axis (Roll axis), which can be respectively separated by three motors.
  • Pitch axis pitch axis
  • YAW axis translation axis
  • Roll axis roll axis
  • the pitch axis, pan axis, and roll axis are rotated to adjust the attitude of the camera.
  • the pan/tilt head 10 includes a Z-axis stabilizer, and the axle arms of the Z-axis stabilizer can be hinged to other axle arms of the pan/tilt head 10.
  • the Z-axis stabilizer can provide stabilization for this up and down direction.
  • the locking mechanism 40 can be used to lock the Z-axis stabilizer.
  • the second axle arm 30 can be the axle arm of the Z-axis stabilizer, and the first axle arm 20 is the other axle arm hinged to the axle arm of the Z-axis stabilizer.
  • the locking mechanism 40 can lock the other two axle arms of the platform 10, or the other two components of the platform 10.
  • the locking mechanism 40 can be used on devices other than the platform 10 .
  • the locking mechanism 40 is mounted to the first axle arm 20 and is capable of locking the second axle arm 30 and the first axle arm 20.
  • the first end 21 of the first axle arm 20 and the first end 31 of the second axle arm 30 are hinged, and the locking mechanism 40 is mounted to the second end 22 of the first axle arm 20 relative to the first end 21 The second end 22 of the first axle arm 20 and the second end 32 of the second axle arm 30 are locked.
  • the locking mechanism 40 is unlocked, the second axle arm 30 is rotatable relative to the first axle arm 20.
  • the locking mechanism 40 is locked, the second axle arm 30 is locked with the first axle arm 20.
  • the Z-axis stabilizer provides stabilization when the locking mechanism 40 is unlocked. When the locking mechanism 40 is locked, the Z-axis stabilizer is locked and is in a stable state without sloshing.
  • the second shaft arm 30 is provided with a latching portion 33 at one end of the locking mechanism 40, and the locking mechanism 40 can be engaged with the latching portion 33 to lock the second axle arm 30.
  • the catch portion 33 is disposed at the second end 32 of the second axle arm 30.
  • the catch portion 33 protrudes from a side of the second axle arm 30 facing the first axle arm 20.
  • the holding portion 33 is provided with a holding hole 331 .
  • the holding portion 33 has a substantially rectangular frame, and the holding hole 331 has a closed through hole.
  • the catch portion 33 may have other shapes, such as the hook portion 33 being a hook or other structure that can be engaged with the locking mechanism 40.
  • the first axle arm 20 is provided with an opening 23 .
  • the opening 23 is formed in the second end 22 of the first shaft arm 20 corresponding to the catching portion 33.
  • the catch portion 33 passes through the opening 23 and projects from the side of the first axle arm 20 facing away from the second axle arm 30.
  • the locking mechanism 40 is mounted to the side surface, and the latching portion 33 can be engaged with the locking mechanism 40 through the opening 23.
  • the first axle arm 20 is formed with a projection 24 on both sides of the opening 23 for fixing the mounting locking mechanism 40.
  • the bumps 24 are located on both sides in the width direction of the first axle arm 20 and protrude from the side of the first axle arm 20 facing away from the second axle arm 30.
  • the locking mechanism 40 includes a bracket 41, an eccentric shaft 42, a latching member 43, and an elastic member 44.
  • the bracket 41 supports the eccentric shaft 42 and the lock member 43.
  • the eccentric shaft 42 is coupled to the locking member 43 to drive the locking member 43 to rotate.
  • the elastic member 44 elastically connects the locking member 43 and the eccentric rotating shaft 42.
  • the bracket 41 is fixed to the first axle arm 20.
  • the bracket 41 can be secured to the projection 24 of the first axle arm 20 by screws 45.
  • the bracket 41 can be secured to the first axle arm 20 by gluing, welding, or the like.
  • the bracket 41 includes a locking abutment portion 411 that can withstand the latching member 43.
  • the bracket 41 includes a first bracket 412 and a second bracket 413 disposed opposite the first bracket 412. The first bracket 412 and the second bracket 413 clamp the locking member 43, and the eccentric shaft 42 passes through the first Bracket 412 and locking member 43.
  • the first bracket 412 and the second bracket 413 are respectively fixed to the bumps 24 of the first axle arm 20.
  • the first bracket 412 is formed with a first through hole 4121 through which the eccentric rotating shaft 42 passes, and a first locking boss 4122 is protruded outside the first through hole 4121.
  • the second bracket 413 is formed with a second through hole 4131 corresponding to the first through hole 4121, and a second locking boss 4132 is protruded outside the second through hole 4131.
  • the locking abutment portion 411 includes a first locking boss 4122 and a second locking boss 4132 that are butted.
  • the first locking boss 4122 is adjacent to the first axial hole 20 with respect to the first through hole 4121 and extends toward the second bracket 413.
  • the second locking boss 4132 is adjacent to the first shaft arm 20 with respect to the second through hole 4131 and extends toward the first bracket 412.
  • the first locking boss 4122 and the second locking boss 4132 are butted together and can be locked together by bolts 46.
  • the first locking boss 4122 and the second locking boss 4132 correspond to the position of the opening 23 of the first axle arm 20, on the side of the opening 23 away from the second axle arm 30, as shown in FIG. Therefore, the locking abutting portion 411 corresponds to the position of the opening 23, and can resist the locking member 43 and the catching portion 33 of the second shaft arm 30.
  • FIG. 3 is a perspective view of the eccentric shaft 42.
  • the first end 421 of the eccentric shaft 42 passes through the first through hole 4121 and the locking member 43 of the first bracket 412, and extends to the second through hole 4131 of the second bracket 413, and is fixed to the shaft bolt 47. connection.
  • the shaft pin 47 passes through the second through hole 4131 of the second bracket 413 and penetrates into the eccentric shaft 42.
  • One end of the shaft pin 47 away from the eccentric shaft 42 is limited to the outer side of the second bracket 413 facing away from the first bracket 412, and is rotatable relative to the second bracket 413, so that the eccentric shaft 42 is movably mounted to the bracket 41.
  • the first end 421 of the eccentric shaft 42 defines a shaft hole 422 at a position of the shaft center, and the shaft bolt 47 is disposed in the shaft hole 422.
  • the shaft pin 47 and the shaft hole 422 can be tightened by a threaded fit.
  • the first end 421 of the eccentric shaft 42 includes a first mating segment 423, a second mating segment 424, and a third mating segment 425.
  • the second mating segment 424 is coupled to the first mating segment 423
  • the third mating segment 425 is coupled to the second mating segment 424.
  • the first mating segment 423, the second mating segment 424, and the third mating segment 425 are respectively from the first end 421.
  • the ends are arranged inwardly.
  • the outer diameter of the second mating segment 424 is greater than the outer diameter of the first mating segment 423
  • the outer diameter of the third mating segment 425 is greater than the outer diameter of the second mating segment 424.
  • the first mating segment 423 penetrates into the locking member 43 and cooperates with the elastic member 44.
  • the elastic member 44 can be sleeved outside the first mating segment 423.
  • the second engaging portion 424 penetrates into the locking member 43 and cooperates with the locking member 43 to be rotatable relative to the locking member 43.
  • the third mating section 425 penetrates into the first through hole 4121 of the first bracket 412 and cooperates with the first bracket 412 to be rotatable relative to the first bracket 412.
  • the end of the eccentric shaft 42 is provided with a shaft notch 426 for holding one end of the elastic member 44.
  • the shaft notch 426 is formed on one side of the first mating section 423 and is open to the outside.
  • one side of the eccentric shaft 42 is convexly provided with a mounting protrusion 420.
  • the mounting protrusion 420 protrudes from a side of the third mating section 425 adjacent to the first axle arm 20.
  • a fixing hole 4201 is formed in the mounting protrusion 420, and an inner wall of the fixing hole 4201 may be formed with a thread (not shown).
  • the eccentric shaft 42 includes a shaft 427 coupled to the third mating segment 425 that extends away from the first end 421 of the eccentric shaft 42.
  • the eccentric shaft 42 includes a profiled shaft section 429 coupled to the shaft 427, the profiled shaft section 429 being located at a second end 428 of the eccentric shaft 42 relative to the first end 421.
  • the locking mechanism 40 includes a knob 48 that is fixedly coupled to an end of the eccentric shaft 42 remote from the latch member 43, as shown in FIG.
  • the rotation of the knob 48 and the eccentric shaft 42 is not performed, and the eccentric shaft 42 can be rotated by rotating the knob 48, and the knob 48 is convenient for the user to apply force.
  • the length of the knob 48 is substantially perpendicular to the direction of extension of the eccentric shaft 42.
  • the knob 48 is mounted to the second end 428 of the eccentric shaft 42 relative to the first end 421.
  • the knob 48 is in limited engagement with the profiled shaft section 429, which can limit the rotation of the knob 48 relative to the eccentric shaft 42.
  • the knob 48 is provided with a knob mounting hole 481, and the shaped shaft section 429 is held in the knob mounting hole 481.
  • the shape of the cross section of the profiled shaft section 429 coincides with the shape of the knob mounting hole 481.
  • the knob mounting aperture 481 is an oblong hole and the profiled shaft section 429 has a cross-section that conforms to the shape of the oblong hole.
  • the profiled shaft section 429 is substantially in the shape of a longitudinally cut away portion of the opposite sides of the cylinder.
  • the cross-section of the knob mounting aperture 481 and the profiled shaft section 429 can have other shapes, such as a polygonal shape, a D-shape.
  • the knob 48 can be fixedly coupled to the eccentric shaft 42 by other means, such as gluing, screwing, welding, and the like.
  • a first limiting structure 401 is disposed between the bracket 41 and the eccentric shaft 42 to limit the rotation of the eccentric shaft 42 relative to the bracket 41.
  • the first limiting structure 401 can limit the angle of rotation of the eccentric rotating shaft 42 relative to the bracket 41 to reciprocate the eccentric rotating shaft 42 within a certain angular range. In one embodiment, the angle range is less than 180 degrees, but is not limited thereto.
  • FIG. 4 is a perspective view of the first bracket 412.
  • the first limiting structure 401 includes a guide groove 4123 formed on the bracket 41 and an elastic expansion member 49 fixed to the eccentric shaft 42. When the eccentric shaft 42 rotates, the elastically stretchable member 49 moves along the guide groove 4123.
  • the guide groove 4123 is formed on a side of the first bracket 412 facing away from the second bracket 413.
  • the guide groove 4123 has a circular arc shape.
  • the two ends of the guiding groove 4123 are formed with limiting holes 4124, 4125 having a depth deeper than the guiding groove 4123.
  • the positioning fit can keep the eccentric shaft 42 in the position when it is rotated to the bottom, and ensure that the locking mechanism 40 is fixed in the locked or unlocked position.
  • the elastically stretchable member 49 is compressed as it slides from the limiting hole 4124 or 4125 into the guide groove 4123.
  • the resilient telescoping member 49 is fixedly mounted within the mounting projection 420 of the eccentric shaft 42.
  • the elastic expansion member 49 includes an elastic plunger that can be screwed into the fixing hole 4201 of the mounting protrusion 420.
  • the elastically stretchable member 49 includes a resilient piece that is slidable along the guide channel 4123. In other embodiments, the elastically stretchable member 49 can be other resilient members.
  • the locking member 43 is coupled to the eccentric shaft 42 and supported on the bracket 41.
  • the locking member 43 is movably mounted on the bracket 41.
  • the locking member 43 is located between the first bracket 412 and the second bracket 413.
  • FIG. 5 is a perspective view of the locking member 43. Referring to FIGS. 2 and 5, the locking member 43 is formed with a mounting through hole 431 through which the eccentric rotating shaft 42 passes, and extends outside the mounting through hole 431 to form a hook portion 432.
  • the mounting through hole 431 corresponds to the first through hole 4121 of the first bracket 412 and the second through hole 4122 of the second bracket 413, and the eccentric rotating shaft 42 penetrates into the mounting through hole 431. Referring to FIG.
  • the first engaging portion 423 and the second engaging portion 424 of the eccentric rotating shaft 42 penetrate into the mounting through hole 431, and a space for mounting the elastic member 44 is left between the first engaging portion 423 and the mounting through hole 431.
  • one side of the locking member 43 is provided with a locking notch 433.
  • the lock notch 433 is opened on one side of the side wall of the mounting through hole 431, communicates with the mounting through hole 431, and is open to the outside.
  • the lock notch 433 corresponds to the shaft notch 426 of the eccentric shaft 42 and respectively clamps both ends of the elastic member 44.
  • the hook portion 432 is rotated on the side of the locking abutment portion 411 (shown in FIG. 1).
  • the hook portion 432 is rotated on a side of the locking abutment portion 411 away from the first end 21 of the first axle arm 20.
  • the hook portion 432 extends from the side wall of the attachment through hole 431 toward the first shaft arm 20, and is rotatable toward the lock abutment portion 411 to abut against the lock abutment portion 411.
  • the locking member 43 is lockably coupled to the second axle arm 30.
  • the latching portion 33 of the second axle arm 30 and the latching member 43 are engaged with the latching member.
  • the hook portion 423 can be engaged with the catch portion 33 of the second shaft arm 30.
  • the locking member 43 is retained in the locking hole 331.
  • the end of the hook portion 423 can extend into the holding hole 331 and hook the catch portion 33.
  • the hook portion 423 is generally L-shaped.
  • the axial center of the eccentric shaft 42 i.e., the axial center position of the shaft hole 422 in FIG. 3 is biased toward the side where the mounting through hole 431 is connected to the hook portion 432.
  • a second limit structure 402 is disposed between the eccentric shaft 42 and the latch member 43 to limit the relative rotational angle of the eccentric shaft 42 and the latch member 43.
  • the second limiting structure 402 includes a limiting projection 4241 formed on one of the eccentric rotating shaft 42 and the locking member 43, and a limiting groove 434 provided on the other.
  • the limiting protrusion 4241 slides in the limiting groove 434.
  • the limiting protrusion 4241 is formed on the outer side of the eccentric rotating shaft 42, and the limiting groove 434 is formed on the inner side of the locking member 43.
  • the stop projections 4241 are formed on the outside of the second mating segment 424 of the eccentric shaft 42.
  • the limiting protrusion 4241 extends in the axial direction of the eccentric rotating shaft 42.
  • the limiting groove 434 is recessed in the inner wall of the mounting through hole 431.
  • the limiting projection 4241 is inserted into the limiting groove 434 parallel to the axial direction of the eccentric rotating shaft 42, and is movable in the limiting groove 434 in the circumferential direction of the mounting through hole 431.
  • the limiting protrusion 4241 may be formed on the inner side of the locking member 43 .
  • the limiting groove 434 may be formed on the outer side of the eccentric rotating shaft 42 , and the limiting groove 434 moves relative to the limiting protrusion 4241 .
  • the resilient member 44 resiliently couples the latch member 43 and the eccentric shaft 42 to provide resistance to rotation of the latch member 43 relative to the eccentric shaft 42.
  • One end of the elastic member 44 is locked in the shaft notch 426 of the eccentric rotating shaft 42 , and the other end is locked in the locking notch 433 of the locking member 43 , so that the elastic member 44 is mounted between the eccentric rotating shaft 42 and the locking member 43 .
  • the resilient member 44 includes a torsion spring that is sleeved over the end of the eccentric shaft 42 and is located within the latching member 43. The torsion spring sleeve is disposed outside the first engaging portion 423 of the eccentric rotating shaft 42 and is located in the mounting through hole 431 of the locking member 43.
  • the resilient member 44 includes a tension spring disposed between the eccentric shaft 42 and the latching member 43.
  • the resilient member 44 can be other resiliently coupled latching members 43 and eccentric shafts 42 that provide an obstructive force.
  • the elastic member 44 rotates the lock member 43 with the eccentric shaft 42 when the lock member 43 is separated from the lock abutment portion 411.
  • the locking member 43 abuts the locking abutting portion 411
  • the locking member 43 is buckled to the second shaft arm 30, and the eccentric rotating shaft 42 rotates against the locking member 43 against the resistance of the elastic member 44, and pushes the locking member 43 to move.
  • the second axle arm 30 is pulled toward the first axle arm 20 to lock the first axle arm 20 and the second axle arm 30.
  • FIG. 6 is a side view of the platform 10 when the locking mechanism 40 is unlocked.
  • the elastically stretchable member 49 is located at one end of the guide groove 4123.
  • the elastic expansion member 49 is limited to the limiting hole 4124 (shown in FIG. 4) at one end of the guiding groove 4123, and can restrict the rotation of the eccentric rotating shaft 42 to limit the eccentric rotating shaft 42 to the unlocked state.
  • the first axle arm 20 and the second axle arm 30 are loosened and relatively rotatable.
  • FIG. 7 is a schematic cross-sectional view of the platform 10 shown in FIG. 6.
  • FIG. 8 is an enlarged view of a partial area 100 of the platform 10 shown in FIG.
  • the limiting protrusion 4241 is located at one end of the limiting groove 434 away from the hook portion 432.
  • FIG. 10 is a schematic cross-sectional view of the platform 10 shown in FIG.
  • FIG. 11 is an enlarged view of a partial area 200 of the platform 10 shown in FIG.
  • the lock member 43 is rotated in the first direction to bring the lock member 43 toward the catch portion 33 of the second shaft arm 30.
  • the catch portion 33 passes through the opening 23 of the first axle arm 20.
  • the eccentric rotating shaft 42 is rotated by turning the knob 48 in the LOCK direction in the figure, and the locking member 43 is separated from the locking abutting portion 411 before the locking member 43 contacts the locking abutting portion 411,
  • the elastic member 44 shown in FIG.
  • the elastically stretchable member 49 is compressed and slides into the guide groove 4123 from the limiting hole 4124 at one end of the guide groove 4123, and slides in the other end direction of the guide groove 4123.
  • the lock member 43 is continued to be rotated in the first direction to be engaged with the catch portion 33.
  • the locking member 43 is snapped to the second axle arm 30.
  • the knob 48 is further rotated in the LOCK direction to rotate the eccentric shaft 42.
  • the locking member 43 synchronously rotates with the eccentric shaft 42 to reach the locking abutment portion 411, and the locking member 43 is in contact with the latching portion 33 to realize the pre-preparation. lock.
  • the hook portion 432 of the latching member 43 extends into the latching hole 331 of the latching portion 33. In the pre-locked state, the limiting protrusion 4241 is still located at one end of the limiting slot 434 away from the hook portion 432.
  • the elastically stretchable member 49 is located in the guide groove 4123 and does not reach the other end of the guide groove 4123.
  • the second axle arm 30 In the pre-locked state, the second axle arm 30 is not rotatable, but is still loose with the first axle arm 20. In the pre-locked state, the second axle arm 30 and the first axle arm 20 can be pre-connected to each other without the second axle arm 30 falling, so as to facilitate further locking of the second axle arm 30. .
  • FIG. 12 is a side elevational view of the platform 10 when the locking mechanism 40 is locked.
  • FIG. 13 is a schematic cross-sectional view of the platform 10 shown in FIG.
  • FIG. 14 is an enlarged view of a partial area 300 of the platform 10 shown in FIG.
  • the latching member 43 is pushed up to cause the catching portion 33 of the second axle arm 30 to be translated in a direction approaching the first axle arm 20.
  • the eccentric rotating shaft 42 is continuously rotated in the first direction to elastically deform the elastic member 44 (shown in FIG. 2) to rotate the eccentric rotating shaft 42 relative to the locking member 43 to translate against the locking member 43. .
  • the locking member 43 abuts the locking abutting portion 411, and the locking member 43 is fastened to the second shaft arm 30.
  • the eccentric rotating shaft 42 rotates against the locking member 43 against the resistance of the elastic member 44, and the locking member 43 is moved and pulled.
  • the second axle arm 30 approaches the first axle arm 20 to lock the first axle arm 20 and the second axle arm 30.
  • the knob 48 is continuously rotated in the LOCK direction to rotate the eccentric shaft 42, and the elastically stretchable member 49 continues to slide along the guide groove 4123 in the direction of the limiting hole 4125 (shown in FIG. 4).
  • the hook portion 432 of the locking member 43 abuts the locking abutting portion 411, and the locking abutting portion 411 resists the rotation of the locking member 43, so that the eccentric rotating shaft 42 rotates to elastically deform the elastic member 44, and the eccentric rotating shaft 42 is opposite to the locking buckle
  • the piece 43 rotates.
  • the limiting protrusion 4241 moves in the limiting groove 434 toward an end close to the hook portion 432.
  • the rotating eccentric shaft 42 pushes the lock member 43 to translate.
  • the axis of the eccentric shaft 42 is biased toward the hook portion 432, and the eccentric shaft 42 that rotates in the direction of the hook portion 432 pushes the lock member 43 away from the first shaft arm 20.
  • the latching member 43 pulls the catching portion 33 of the second shaft arm 30 such that the latching portion 33 abuts against the locking abutting portion 411.
  • the eccentric rotating shaft 42 is rotated until the elastic expansion member 49 is restricted in the limiting hole 4125, and the limiting protrusion 4241 abuts against the end of the limiting groove 434 near the hook portion 432 to reach the locking state.
  • the second axle arm 30 In the locked state, the second axle arm 30 is locked, and cannot rotate and there is no looseness, thereby avoiding the failure of the lock, vibration, bumping, noise, and the like.
  • the elastic expansion member 49 is located in the limiting hole 4125, and the locking action of the locking member 40 can be fixed and fixed in the locked state.
  • the latching member 43 rotates toward the latching portion 33 of the second axle arm 30 in the first direction, and is engaged with the latching portion 33 to realize pre-locking.
  • the eccentric shaft 42 rotates in the first direction to drive the lock member 43 to rotate toward the lock abutment portion 411 in a direction toward the lock abutment portion 411.
  • the locking member 43 translates, and the top holding portion 33 translates in a direction close to the first shaft arm 20 to achieve locking.
  • the eccentric shaft 42 continues to rotate in the first direction to elastically deform the elastic member 44 to rotate the eccentric shaft 42 relative to the lock member 43 to translate against the push lock member 43. The reliability of the lock can be ensured by the process of pre-locking and locking.
  • the latching member 43 When the locked second axle arm 30 is unlocked, the latching member 43 is moved in the direction of approaching the second axle arm 30, and then the latching member 43 is rotated in the opposite direction of the first direction, so that the latching member 43 is away from the first
  • the catching portion 33 of the two-axis arm 30 rotates and is separated from the catching portion 33.
  • the eccentric shaft 42 is rotated in the OPEN direction, and the eccentric shaft 42 is rotated relative to the lock member 43 due to the action of the elastically deformable elastic member 44.
  • the limiting protrusion 4241 moves in the limiting groove 434 toward an end away from the hook portion 432.
  • the eccentric shaft 42 pushes the lock member 43 to translate in a direction toward the second shaft arm 30.
  • the elastically stretchable member 49 slides into the guide groove 4123 from the limiting hole 4125 and slides in the direction of the opposite limiting hole 4124.
  • the eccentric rotating shaft 42 is rotated until the elastic member 44 returns to the original state, and the limiting protrusion 4241 is located at one end of the limiting groove 434 away from the hook portion 432, and continues to rotate the eccentric rotating shaft 42 in the OPEN direction, and the locking member 43 rotates synchronously with the eccentric rotating shaft 42. .
  • the latching member 43 is pivoted out of the latching portion 33 of the second axle arm 30, and is separated from the latching portion 33, so that the latching portion 33 can be withdrawn from the opening 23 of the first axle arm 20, and the second axle arm 30 is unlocked. It is rotatable relative to the first axle arm 20.
  • the elastic member 44 can ensure that the unlocking process and the locking process can be continuously performed to avoid the phenomenon that the unlocking is stuck and the locking is not tight.
  • the embodiment of the present application discloses a locking method that can be used to lock the first axle arm and the second axle arm.
  • the locking method comprises: rotating the locking member in a first direction to bring the locking member toward the holding portion of the second axial arm; continuing to rotate the locking member toward the first direction to buckle with the locking portion; pushing the lock
  • the fastener is configured to translate the top holding portion toward the first axial arm, thereby locking the first shaft arm and the second shaft arm.
  • the second axle arm is rotated relative to the first axle arm such that the catch passes through the aperture.
  • the locking member is retained by the locking portion that passes through the opening.
  • the eccentric rotating shaft is rotated in the first direction, and the locking member is driven to rotate toward the locking abutting portion to the contact locking abutting portion; the eccentric rotating shaft is further rotated in the first direction to elastically deform the elastic member, so that The eccentric shaft rotates relative to the locking member to push the lock member to translate.
  • the eccentric shaft is rotated to move the elastically stretchable member along the guide channel.
  • the eccentric rotating shaft is rotated in the first direction to compress the elastic expansion member, and slides out of the limiting hole at one end of the guiding groove; and continues to rotate the eccentric rotating shaft in the first direction, so that the elastic expansion member slides along the guiding groove, and slides to The limiting hole at the other end of the guiding groove is positioned and matched with the limiting hole.
  • the eccentric rotating shaft is rotated against the resistance of the elastic member to cause the limiting projection to slide in the limiting groove.

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Abstract

一种锁定机构(40)、云台(10)和云台轴臂的锁定方法。锁定机构(40)包括支架(41)、偏心转轴(42)、锁扣件(43)和弹性件(44)。支架(41)包括锁定抵接部(411)。偏心转轴(42)转动安装于支架(41)。锁扣件(43)与偏心转轴(42)连接。弹性件(44)弹性连接锁扣件(43)和偏心转轴(42)。弹性件(44)在锁扣件(43)与锁定抵接部(411)分离时，使锁扣件(43)随着偏心转轴(42)转动。在锁扣件(43)抵接锁定抵接部(411)时，偏心转轴(42)克服弹性件(44)的阻力相对于锁扣件(43)转动，来推动锁扣件(43)移动。云台(10)包括第一轴臂(20)、与第一轴臂(20)铰接的第二轴臂(30)，及锁定机构(40)。

Description

锁定机构、云台及云台轴臂的锁定方法 技术领域
本申请涉及云台技术领域，特别涉及一种锁定机构、包括锁定机构的云台及云台轴臂的锁定方法。
背景技术
云台可以用来搭载拍摄装置，例如照相机、摄像机、智能手机等，用以实现拍摄装置的固定，调节拍摄装置的姿态(例如改变拍摄装置的高度和方向)，以及使拍摄装置稳定保持在确定姿态上，从而实现拍摄装置的稳定、流畅且多角度的拍摄。
云台包括增稳器，当用户在手持云台平稳走路或者慢跑情况下进行拍摄时，由于手部的上下方向的自然运动，会导致拍摄装置上下晃动，增稳器可针对这种上下方向的晃动现象提供增稳。
然而，由于增稳器在非工作状态下体积较大，来回晃动，因此在运输、摆拍等状态下需要对增稳器进行锁定，使其处于稳定形态，而不发生晃动和碰撞。
发明内容
本申请提供一种锁定可靠的锁定机构、云台及云台轴臂的锁定方法。
根据本申请实施例的一个方面，提供一种锁定机构。该锁定机构包括：支架，包括锁定抵接部；偏心转轴，转动安装于所述支架；锁扣件，与所述偏心转轴连接；及弹性件，弹性连接所述锁扣件和所述偏心转轴，所述弹性件在所述锁扣件与所述锁定抵接部分离时，使所述锁扣件随着所 述偏心转轴转动，在所述锁扣件抵接所述锁定抵接部时，所述偏心转轴克服所述弹性件的阻力相对于所述锁扣件转动，来推动所述锁扣件移动。
根据本申请实施例的另一个方面，提供一种云台。该云台包括：第一轴臂；第二轴臂，与所述第一轴臂铰接；锁定机构，安装于所述第一轴臂，能够锁紧所述第二轴臂和所述第一轴臂，所述锁定机构包括：支架，包括锁定抵接部，所述支架固定于所述第一轴臂；偏心转轴，转动安装于所述支架；锁扣件，与所述偏心转轴连接，所述锁扣件能够与所述第二轴臂锁扣连接；及弹性件，弹性连接所述锁扣件和所述偏心转轴，所述弹性件在所述锁扣件与所述锁定抵接部分离时，使所述锁扣件随着所述偏心转轴转动，在所述锁扣件抵接所述锁定抵接部时，所述锁扣件卡扣于所述第二轴臂，所述偏心转轴克服所述弹性件的阻力相对于所述锁扣件转动，推动所述锁扣件移动，拉动所述第二轴臂向所述第一轴臂靠近，来锁紧所述第一轴臂和所述第二轴臂。
根据本申请实施例的另一个方面，提供一种云台轴臂的锁定方法。云台包括第一轴臂、与所述第一轴臂铰接的第二轴臂，以及锁定机构，所述锁定机构装设在第一轴臂上，所述第二轴臂的相应的一端设有卡持部，所述锁定机构包括装设于所述第一轴臂上的支架和活动安装于所述支架上的锁扣件。所述方法包括：朝第一方向转动锁扣件，使所述锁扣件朝向所述第二轴臂的卡持部靠近；继续朝向第一方向转动所述锁扣件，使其与所述卡持部卡扣；顶推所述锁扣件，使其顶持所述卡持部向靠近所述第一轴臂的方向平移。
根据本申请实施例的另一个方面，提供一种云台。该云台包括：第一轴臂；第二轴臂，与所述第一轴臂铰接，且设有卡持部；及锁定机构，装设在所述第一轴臂对应所述卡持部的一端，所述锁定机构包括装设于所述第一轴臂上的支架和活动安装于所述支架上的锁扣件；所述锁扣件朝第一方向靠近所述第二轴臂的卡持部转动，与所述卡持部卡扣，所述锁扣件 平移，顶持所述卡持部向靠近所述第一轴臂的方向平移。
本申请锁定机构通过偏心转轴和弹性件共同作用，使锁扣件随着偏心转轴转动至锁定抵接部，实现预锁，偏心转轴继续转动时，锁定抵接部抵推锁扣件，偏心转轴克服弹性件的阻力与锁扣件相对运动，因偏心转轴的轴偏心，所以推动锁扣件移动，实现锁紧，通过预锁和锁紧的过程可以保证锁定的可靠性。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1所示为本申请云台的一个实施例的立体示意图。
图2所示为图1所示的云台的立体分解图。
图3所示为图2所示的云台的锁定机构的偏心转轴的立体示意图。
图4所示为图2所示的锁定机构的第一支架的立体示意图。
图5所示为图2所示的锁定机构的锁扣件的立体示意图。
图6所示为图1所示的云台在锁定机构解锁状态下的侧视图。
图7所示为图6所示的云台的截面示意图。
图8所示为图6所示的云台的局部放大图。
图9所示为图1所示的云台在锁定机构预锁状态下的侧视图。
图10所示为图9所示的云台的截面示意图。
图11所示为图10所示的云台的局部放大图。
图12所示为图1所示的云台在锁定机构锁紧状态下的侧视图。
图13所示为图12所示的云台的截面示意图。
图14所示为图13所示的云台的局部放大图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本申请的一些方面相一致的装置和方法的例子。
在本申请使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本申请。在本申请和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。除非另行指出，“前部”、“后部”、“下部”和/或“上部”等类似词语只是为了便于说明，而并非限于一个位置或者一种空间定向。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而且可以包括电性的连接，不管是直接的还是间接的。
本申请实施例的锁定机构包括支架、偏心转轴、锁扣件和弹性件。 支架包括锁定抵接部。偏心转轴转动安装于支架。锁扣件与偏心转轴连接。弹性件弹性连接锁扣件和偏心转轴。弹性件在锁扣件与锁定抵接部分离时，使锁扣件随着偏心转轴转动。在锁扣件抵接锁定抵接部时，偏心转轴克服弹性件的阻力相对于锁扣件转动，来推动锁扣件移动。本申请锁定机构通过偏心转轴和弹性件共同作用，使锁扣件随着偏心转轴转动至锁定抵接部，实现预锁，偏心转轴继续转动时，锁定抵接部抵推锁扣件，偏心转轴克服弹性件的阻力与锁扣件相对运动，因偏心转轴的轴偏心，所以推动锁扣件移动，实现锁紧，通过预锁和锁紧的过程可以保证锁定的可靠性。
本申请实施例的云台包括第一轴臂、第二轴臂及锁定机构。第二轴臂与第一轴臂铰接。锁定机构安装于第一轴臂，能够锁紧第二轴臂和第一轴臂。锁定机构包括支架、偏心转轴、锁扣件和弹性件。支架包括锁定抵接部，支架固定于第一轴臂。偏心转轴转动安装于支架。锁扣件与偏心转轴连接。锁扣件能够与第二轴臂锁扣连接。弹性件弹性连接锁扣件和偏心转轴。弹性件在锁扣件与锁定抵接部分离时，使锁扣件随着偏心转轴转动。在锁扣件抵接锁定抵接部时，锁扣件卡扣于第二轴臂，偏心转轴克服弹性件的阻力相对于锁扣件转动，推动锁扣件移动，拉动第二轴臂向第一轴臂靠近，来锁紧第一轴臂和第二轴臂。
本申请实施例提供一种云台轴臂的锁定方法。云台包括第一轴臂、与第一轴臂铰接的第二轴臂，以及锁定机构。锁定机构装设在第一轴臂上，第二轴臂的相应的一端设有卡持部。锁定机构包括装设于第一轴臂上的支架和活动安装于支架上的锁扣件。锁定方法包括：朝第一方向转动锁扣件，使锁扣件朝向第二轴臂的卡持部靠近；继续朝向第一方向转动锁扣件，使其与卡持部卡扣；顶推锁扣件，使其顶持卡持部向靠近第一轴臂的方向平移。
本申请实施例的云台包括第一轴臂、第二轴臂和锁定机构。第二轴臂与第一轴臂铰接，且设有卡持部。锁定机构装设在第一轴臂对应卡持部 的一端。锁定机构包括装设于第一轴臂上的支架和活动安装于支架上的锁扣件。锁扣件朝第一方向靠近第二轴臂的卡持部转动，与卡持部卡扣。锁扣件平移，顶持卡持部向靠近第一轴臂的方向平移。
下面结合附图，对本申请的锁定机构、云台及云台轴臂的锁定方法进行详细说明。在不冲突的情况下，下述的实施例及实施方式中的特征可以相互组合。
图1所示为云台10的一个实施例的立体示意图。图1中仅示出云台10的部分结构。云台10可以用来搭载拍摄装置，例如照相机、摄像机、智能手机等，用以实现拍摄装置的固定，调节拍摄装置的姿态(例如改变拍摄装置的高度和方向)，以及使拍摄装置稳定保持在确定姿态上，从而实现拍摄装置的稳定、流畅且多角度的拍摄。本申请实施例的云台10可以是手持云台，用户可以手握云台10进行拍摄。云台10可以在用户行进拍摄中提供增稳，保证图像的质量。
云台10包括第一轴臂20、第二轴臂30和锁定机构40。第二轴臂30与第一轴臂20铰接。第二轴臂30的一端通过铰接轴50与第一轴臂20的一端转动连接。图1中仅示出第一轴臂20和第二轴臂30的一部分。在一个实施例中，云台10为多轴云台，例如三轴云台，包括俯仰轴(Pitch轴)、平移轴(YAW轴)和横滚轴(Roll轴)，可以通过三个电机分别驱动俯仰轴、平移轴和横滚轴转动，来调整拍摄装置的姿态。云台10包括Z轴增稳器，Z轴增稳器的轴臂可以与云台10的其他轴臂铰接。当用户在手持云台平稳走路或者慢跑情况下进行拍摄时，由于手部的上下方向的自然运动，会导致拍摄装置上下晃动，Z轴增稳器可针对这种上下方向的晃动现象提供增稳。然而，由于Z轴增稳器在非工作状态下体积较大，来回晃动，因此在运输、摆拍等状态下需要对增稳器进行锁定，使其处于稳定形态，而不发生晃动和碰撞。在一个实施例中，锁定机构40可以用来锁定Z轴增稳器。第二轴臂30可以是Z轴增稳器的轴臂，第一轴臂20为与Z 轴增稳器的轴臂铰接的其他轴臂。在另一个实施例中，锁定机构40可以锁定云台10的其他两个轴臂，或云台10的其他两个部件。在又一个实施例中，锁定机构40可以用于云台10以外的装置上。
在图示所示的实施例中，锁定机构40安装于第一轴臂20，能够锁紧第二轴臂30和第一轴臂20。在一个实施例中，第一轴臂20的第一端21和第二轴臂30的第一端31铰接，锁定机构40安装于第一轴臂20相对于第一端21的第二端22，锁定第一轴臂20的第二端22和第二轴臂30的第二端32。锁定机构40解锁时，第二轴臂30能够相对于第一轴臂20转动。锁定机构40锁紧时，将第二轴臂30与第一轴臂20锁紧。在一个实施例中，锁定机构40解锁时，Z轴增稳器提供增稳。锁定机构40锁紧时，Z轴增稳器被锁紧，处于稳定状态，不发生晃动。
图2所示为图1所示的云台10的立体分解图。参考图1和2，第二轴臂30对应锁定机构40的一端设有卡持部33，锁定机构40可以与卡持部33卡持来锁紧第二轴臂30。在图示实施例中，卡持部33设置于第二轴臂30的第二端32。在一个实施例中，卡持部33凸设于第二轴臂30面向第一轴臂20的侧面。在图示实施例中，卡持部33开设有卡持孔331。卡持部33大致呈矩形框，卡持孔331呈封闭的通孔。在其他实施例中，卡持部33可以呈其他形状，例如卡持部33为卡勾，或者其他能够与锁定机构40卡扣的结构。
在一个实施例中，第一轴臂20开设有开孔23。开孔23形成于第一轴臂20对应卡持部33的第二端22。卡持部33穿过开孔23，凸伸出第一轴臂20背向第二轴臂30的侧面。锁定机构40安装于该侧面，卡持部33穿过开孔23可以与锁定机构40卡扣。在一个实施例中，第一轴臂20于开孔23的两侧形成有凸块24，用于固定安装锁定机构40。凸块24位于第一轴臂20的宽度方向的两侧，凸伸于第一轴臂20背向第二轴臂30的侧面。
在一个实施例中，锁定机构40包括支架41、偏心转轴42、锁扣件 43和弹性件44。支架41支撑偏心转轴42和锁扣件43。偏心转轴42与锁扣件43连接，驱动锁扣件43转动。弹性件44弹性连接锁扣件43和偏心转轴42。
支架41固定于第一轴臂20。在一个实施例中，支架41可以通过螺钉45固定于第一轴臂20的凸块24上。在其他实施例中，支架41可以通过胶接、焊接等方式固定于第一轴臂20。支架41包括锁定抵接部411，可以抵挡锁扣件43。在一个实施例中，支架41包括第一支架412和与第一支架412相对放置的第二支架413，第一支架412和第二支架413夹持锁扣件43，偏心转轴42穿过第一支架412和锁扣件43。第一支架412和第二支架413分别固定于第一轴臂20的凸块24上。
第一支架412形成有供偏心转轴42穿过的第一通孔4121，且于第一通孔4121的外侧凸设有第一锁定凸台4122。第二支架413形成有对应第一通孔4121的第二通孔4131，且于第二通孔4131的外侧凸设有第二锁定凸台4132。锁定抵接部411包括对接的第一锁定凸台4122和第二锁定凸台4132。第一锁定凸台4122相对于第一通孔4121靠近第一轴臂20，向第二支架413延伸。第二锁定凸台4132相对于第二通孔4131靠近第一轴臂20，向第一支架412延伸。第一锁定凸台4122和第二锁定凸台4132对接，可以通过螺栓46锁固在一起。第一锁定凸台4122和第二锁定凸台4132对应于第一轴臂20的开孔23的位置，位于开孔23远离第二轴臂30的一侧，如图1所示。因此锁定抵接部411对应于开孔23的位置，可以抵挡锁扣件43和第二轴臂30的卡持部33。
偏心转轴42转动安装于支架41。图3所示为偏心转轴42的立体示意图。参考图2和3，偏心转轴42的第一端421穿过第一支架412的第一通孔4121和锁扣件43，延伸至第二支架413的第二通孔4131，与轴栓47固定连接。轴栓47穿过第二支架413的第二通孔4131，穿入偏心转轴42内。轴栓47远离偏心转轴42的一端限位于第二支架413背向第一支架412 的外侧，且可以相对于第二支架413转动，如此将偏心转轴42活动安装于支架41。偏心转轴42的第一端421于轴心位置开设有轴心孔422，轴栓47穿设于轴心孔422内。轴栓47和轴心孔422可以通过螺纹配合拧紧。
在一个实施例中，偏心转轴42的第一端421包括第一配合段423、第二配合段424和第三配合段425。第二配合段424与第一配合段423连接，第三配合段425与第二配合段424连接，第一配合段423、第二配合段424和第三配合段425分别从第一端421的端面向内排布。第二配合段424的外径大于第一配合段423的外径，第三配合段425的外径大于第二配合段424的外径。第一配合段423穿入锁扣件43内，与弹性件44配合。弹性件44可套设于第一配合段423外。第二配合段424穿入锁扣件43内，与锁扣件43配合，能够相对于锁扣件43转动。第三配合段425穿入第一支架412的第一通孔4121内，与第一支架412配合，能够相对于第一支架412转动。
在一个实施例中，偏心转轴42的端部开设有转轴缺口426，卡持弹性件44的一端。在图3所示的实施例中，转轴缺口426形成于第一配合段423的一侧，且对外开口。在图3所示的实施例中，偏心转轴42的一侧凸设有安装凸起420。在一个实施例中，安装凸起420凸设于第三配合段425靠近第一轴臂20的一侧。在一个实施例中，安装凸起420内形成有固定孔4201，固定孔4201的内壁可形成有螺纹(未图示)。
在一个实施例中，偏心转轴42包括与第三配合段425连接的轴杆427，轴杆427向远离偏心转轴42的第一端421的方向延伸。在一个实施例中，偏心转轴42包括与轴杆427连接的异形轴段429，异形轴段429位于偏心转轴42相对于第一端421的第二端428。
在一个实施例中，锁定机构40包括与偏心转轴42远离锁扣件43的一端固定连接的旋钮48，如图2所示。旋钮48与偏心转轴42之间不发出转动，可以通过旋转旋钮48来旋转偏心转轴42，旋钮48方便用户施力。 在一个实施例中，旋钮48的长度方向与偏心转轴42的延伸方向大致垂直。继续参考图2和3，旋钮48安装于偏心转轴42相对于第一端421的第二端428。在一个实施例中，旋钮48与异形轴段429限位配合，异形轴段429可以限制旋钮48相对于偏心转轴42转动。旋钮48开设有旋钮安装孔481，异形轴段429卡持于旋钮安装孔481内。异形轴段429的横截面的形状与旋钮安装孔481的形状一致。在一个实施例中，旋钮安装孔481为长圆孔，异形轴段429具有与长圆孔的形状一致的横截面。异形轴段429大致呈圆柱体相对的两侧纵向切除一部分后的形状。在其他一些实施例中，旋钮安装孔481和异形轴段429的横截面可以呈其他形状，例如多边形、D型。在其他一些实施例中，旋钮48可以通过其他方式与偏心转轴42固定连接，例如胶接、螺接、焊接等。
在一个实施例中，支架41和偏心转轴42之间设置有第一限位结构401，限制偏心转轴42相对于支架41的转动。第一限位结构401可以限制偏心转轴42相对于支架41转动的角度，使偏心转轴42在一定的角度范围内往复运动。在一个实施例中，该角度范围小于180度，但不限于此。
图4所示为第一支架412的立体示意图。参考图2和4，在图示所示的实施例中，第一限位结构401包括形成于支架41上的导槽4123和固定于偏心转轴42的弹性伸缩件49。偏心转轴42转动时，弹性伸缩件49沿导槽4123移动。在一个实施例中，导槽4123形成于第一支架412背向第二支架413的侧面。导槽4123呈圆弧形。在一个实施例中，导槽4123的两端形成有深度比导槽4123深的限位孔4124、4125，弹性伸缩件49移动至限位孔4124、4125内时，与限位孔4124、4125定位配合，可以使偏心转轴42转动到底时保持在所在的位置，保证锁定机构40固定在锁紧或解锁的位置。弹性伸缩件49从限位孔4124或4125滑动至导槽4123内时被压缩。
继续参考图2，在一个实施例中，弹性伸缩件49固定安装于偏心转 轴42的安装凸起420内。在一个实施例中，弹性伸缩件49包括弹性柱塞，可以通过螺纹配合的方式旋设于安装凸起420的固定孔4201内。在另一个实施例中，弹性伸缩件49包括弹片，弹片可沿导槽4123滑动。在其他实施例中，弹性伸缩件49可以是其他具有弹性的元件。
锁扣件43与偏心转轴42连接，且支撑在支架41上。锁扣件43活动安装于支架41上。锁扣件43位于第一支架412和第二支架413之间。图5所示为锁扣件43的立体示意图。参考图2和5，锁扣件43形成有供偏心转轴42穿过的安装通孔431，且于安装通孔431的外侧延伸形成卡勾部432。安装通孔431对应第一支架412的第一通孔4121和第二支架413的第二通孔4122，偏心转轴42穿入安装通孔431内。结合参考图3，偏心转轴42的第一配合段423和第二配合段424穿入安装通孔431内，第一配合段423与安装通孔431之间留有安装弹性件44的空间。在一个实施例中，锁扣件43的一侧开设有锁扣缺口433。锁扣缺口433开设于安装通孔431的侧壁的一侧，与安装通孔431连通，且对外开口。锁扣缺口433对应偏心转轴42的转轴缺口426，分别卡持弹性件44的两端。
卡勾部432在锁定抵接部411(如图1所示)的一侧转动。卡勾部432在锁定抵接部411远离第一轴臂20的第一端21的一侧转动。卡勾部432从安装通孔431的侧壁向靠近第一轴臂20的方向延伸，可以转动向锁定抵接部411靠近，至抵靠于锁定抵接部411。锁扣件43能够与第二轴臂30锁扣连接。第二轴臂30的卡持部33与锁扣件43卡持锁扣。卡勾部423可以与第二轴臂30的卡持部33卡扣。在一个实施例中，锁扣件43卡持于卡持孔331内。卡勾部423的末端可以伸入卡持孔331内，钩扣卡持部33。在一个实施例中，卡勾部423大致呈L形。在图示实施例中，偏心转轴42的轴心(即图3中轴心孔422的轴心位置)偏向安装通孔431连接卡勾部432的一侧。
在一个实施例中，偏心转轴42与锁扣件43之间设置有第二限位结 构402，限制偏心转轴42和锁扣件43的相对转动角度。参考图3和5，第二限位结构402包括形成于偏心转轴42和锁扣件43中的一者上的限位凸起4241，和设于另一者上的限位槽434。偏心转轴42克服弹性件44的阻力转动时，限位凸起4241在限位槽434内滑动。在一个实施例中，限位凸起4241形成于偏心转轴42的外侧，限位槽434形成于锁扣件43的内侧。在图示所示的实施例中，限位凸起4241形成于偏心转轴42的第二配合段424的外侧。限位凸起4241沿偏心转轴42的轴向延伸。限位槽434凹陷于安装通孔431的内壁。限位凸起4241平行于偏心转轴42的轴向插入限位槽434内，且能够在安装通孔431的圆周方向上在限位槽434内移动。在另一个实施例中，限位凸起4241可以形成于锁扣件43内侧，限位槽434可以形成于偏心转轴42的外侧，限位槽434相对于限位凸起4241运动。
继续参考图2、3和5，弹性件44弹性连接锁扣件43和偏心转轴42，能够提供阻碍锁扣件43相对于偏心转轴42转动的阻力。弹性件44一端卡持于偏心转轴42的转轴缺口426内，另一端卡持于锁扣件43的锁扣缺口433内，如此将弹性件44安装于偏心转轴42和锁扣件43之间。在一个实施例中，弹性件44包括扭簧，扭簧套设于偏心转轴42的端部，且位于锁扣件43内。扭簧套设于偏心转轴42的第一配合段423外，位于锁扣件43的安装通孔431内。在另一个实施例中，弹性件44包括设置于偏心转轴42和锁扣件43之间的拉簧。在其他实施例中，弹性件44可以是其他弹性连接锁扣件43和偏心转轴42、提供阻碍力的元件。
弹性件44在锁扣件43与锁定抵接部411分离时，使锁扣件43随着偏心转轴42转动。在锁扣件43抵接锁定抵接部411时，锁扣件43卡扣于第二轴臂30，偏心转轴42克服弹性件44的阻力相对于锁扣件43转动，推动锁扣件43移动，拉动第二轴臂30向第一轴臂20靠近，来锁紧第一轴臂20和第二轴臂30。
图6所示为锁定机构40解锁状态时云台10的侧视图。解锁状态下， 弹性伸缩件49位于导槽4123的一端。弹性伸缩件49限位于导槽4123的一端的限位孔4124(如图4所示)内，可以限制偏心转轴42转动，将偏心转轴42限制于解锁状态。此时第一轴臂20和第二轴臂30松开，可以相对转动。
图7所示为图6所示的云台10的截面示意图。图8所示为图7所示的云台10的局部区域100的放大图。解锁状态下，在弹性件44(如图2所示)和偏心转轴42的作用下，锁扣件43的卡勾部432远离锁定抵接部411，卡勾部432未与第二轴臂30接触。限位凸起4241位于限位槽434远离卡勾部432的一端。
图9所示为锁定机构40预锁状态时云台10的侧视图。图10所示为图9所示的云台10的截面示意图。图11所示为图10所示的云台10的局部区域200的放大图。从解锁状态到预锁状态，朝第一方向转动锁扣件43，使锁扣件43朝向第二轴臂30的卡持部33靠近。卡持部33穿过第一轴臂20的开孔23。在一个实施例中，通过向图中LOCK方向转动旋钮48来转动偏心转轴42，在锁扣件43接触到锁定抵接部411之前，锁扣件43与锁定抵接部411处于分离状态，由于弹性件44(如图2所示)的作用，锁扣件43随着偏心转轴42同步转动，使锁扣件43向靠近锁定抵接部411和卡持部33的方向转动。在一个实施例中，弹性伸缩件49压缩，从导槽4123一端的限位孔4124滑入导槽4123内，向导槽4123另一端方向滑动。
继续朝向第一方向转动锁扣件43，使其与卡持部33卡扣。锁扣件43卡扣于第二轴臂30。在一个实施例中，继续向LOCK方向转动旋钮48来转动偏心转轴42，锁扣件43随着偏心转轴42同步转动抵达锁定抵接部411，锁扣件43与卡持部33接触，实现预锁。在一个实施例中，锁扣件43的卡勾部432伸入卡持部33的卡持孔331内。预锁状态下，限位凸起4241仍位于限位槽434远离卡勾部432的一端。弹性伸缩件49位于导槽4123内，未到达导槽4123的另一端。预锁状态下，第二轴臂30不可转动， 但与第一轴臂20之间仍松动。在预锁状态下，能够预先使第二轴臂30与第一轴臂20相互预连接，而不会使第二轴臂30发生掉落的情况，以方便第二轴臂30的进一步锁紧。
图12所示为锁定机构40锁紧状态时云台10的侧视图。图13所示为图12所示的云台10的截面示意图。图14所示为图13所示的云台10的局部区域300的放大图。从预锁状态到锁紧状态，顶推锁扣件43，使其顶持第二轴臂30的卡持部33向靠近第一轴臂20的方向平移。在一个实施例中，继续朝第一方向转动偏心转轴42，使弹性件44(如图2所示)弹性变形，使偏心转轴42相对于锁扣件43转动，来抵推锁扣件43平移。锁扣件43抵接锁定抵接部411，锁扣件43卡扣于第二轴臂30，偏心转轴42克服弹性件44的阻力相对于锁扣件43转动，推动锁扣件43移动，拉动第二轴臂30向第一轴臂20靠近，来锁紧第一轴臂20和第二轴臂30。
在一个实施例中，继续向LOCK方向转动旋钮48来转动偏心转轴42，弹性伸缩件49继续沿导槽4123向限位孔4125(如图4所示)的方向滑动。此时锁扣件43的卡勾部432抵接锁定抵接部411，锁定抵接部411抵挡锁扣件43转动，因此偏心转轴42转动使弹性件44弹性变形，偏心转轴42相对于锁扣件43转动。限位凸起4241在限位槽434内向靠近卡勾部432的一端移动。由于偏心转轴42的轴心偏向一侧，因此转动的偏心转轴42推动锁扣件43平移。偏心转轴42的轴心偏向卡勾部432一侧，向卡勾部432方向转动的偏心转轴42将锁扣件43向远离第一轴臂20的方向推动。锁扣件43拉动第二轴臂30的卡持部33，使卡持部33抵接于锁定抵接部411。
偏心转轴42旋转直至弹性伸缩件49限位于限位孔4125内，限位凸起4241抵接于限位槽434靠近卡勾部432的一端，达到锁紧状态。锁紧状态下，第二轴臂30被锁定，不可发生转动且不存在松动，避免锁定的失效、发生震动、磕碰、噪声等现象。锁紧状态下，弹性伸缩件49位于限位孔 4125内，可以保证锁定件40锁定动作的固定，固定在锁紧的状态。
本申请实施例锁扣件43朝第一方向靠近第二轴臂30的卡持部33转动，与卡持部33卡扣，实现预锁。偏心转轴42朝第一方向转动，带动锁扣件43向靠近锁定抵接部411的方向转动至接触锁定抵接部411。锁扣件43平移，顶持卡持部33向靠近第一轴臂20的方向平移，实现锁紧。偏心转轴42继续朝第一方向转动，使弹性件44弹性变形，使偏心转轴42相对于锁扣件43转动，来抵推锁扣件43平移。通过预锁和锁紧的过程可以保证锁定的可靠性。
将锁紧的第二轴臂30解锁时，推动锁扣件43向靠近第二轴臂30的方向移动，再向第一方向相反的方向转动锁扣件43，使锁扣件43向远离第二轴臂30的卡持部33转动，与卡持部33分离。在一个实施例中，向OPEN方向转动偏心转轴42，由于弹性变形的弹性件44的作用，偏心转轴42相对于锁扣件43转动。限位凸起4241在限位槽434内向远离卡勾部432的一端移动。偏心转轴42推动锁扣件43向靠近第二轴臂30的方向平移。弹性伸缩件49从限位孔4125滑入导槽4123内，向相对的限位孔4124方向滑动。
偏心转轴42转动至弹性件44恢复原始状态且限位凸起4241位于限位槽434远离卡勾部432的一端后，继续向OPEN方向转动偏心转轴42，锁扣件43与偏心转轴42同步转动。锁扣件43转出第二轴臂30的卡持部33，与卡持部33分离，从而卡持部33可以从第一轴臂20的开孔23内抽出，第二轴臂30解锁，可以相对于第一轴臂20转动。弹性件44可以保证解锁的过程和锁紧的过程都能连续执行，避免发生解锁卡死、锁定不紧等现象。
本申请实施例公开一种锁定方法，可以用来锁定第一轴臂和第二轴臂。锁定方法包括：朝第一方向转动锁扣件，使锁扣件朝向第二轴臂的卡持部靠近；继续朝向第一方向转动锁扣件，使其与卡持部卡扣；顶推锁扣 件，使其顶持卡持部向靠近第一轴臂的方向平移，如此锁紧第一轴臂和第二轴臂。在一个实施例中，相对于第一轴臂转动第二轴臂，使卡持部穿过开孔。锁扣件卡持于穿过开孔的卡持部。
在一个实施例中，朝第一方向转动偏心转轴，带动锁扣件向靠近锁定抵接部的方向转动至接触锁定抵接部；继续朝第一方向转动偏心转轴，使弹性件弹性变形，使偏心转轴相对于锁扣件转动，来抵推锁扣件平移。
在一个实施例中，转动偏心转轴，使弹性伸缩件沿导槽移动。在一个实施例中，朝第一方向转动偏心转轴，使弹性伸缩件压缩，滑出导槽一端的限位孔；继续朝第一方向转动偏心转轴，使弹性伸缩件沿导槽滑动，滑至导槽另一端的限位孔内，与限位孔定位配合。在一个实施例中，克服弹性件的阻力转动偏心转轴，使限位凸起在限位槽内滑动。
对于方法实施例而言，由于其基本对应于装置实施例，所以相关之处参见装置实施例的部分说明即可。方法实施例和装置实施例互为补充。
需要说明的是，在本文中，诸如“第一”和“第二”等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上对本发明实施例所提供的方法和装置进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一 般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。
本专利文件披露的内容包含受版权保护的材料。该版权为版权所有人所有。版权所有人不反对任何人复制专利与商标局的官方记录和档案中所存在的该专利文件或者该专利披露。

Claims (54)

  1. 一种锁定机构，其特征在于，其包括：
    支架，包括锁定抵接部；
    偏心转轴，转动安装于所述支架；
    锁扣件，与所述偏心转轴连接；及
    弹性件，弹性连接所述锁扣件和所述偏心转轴，所述弹性件在所述锁扣件与所述锁定抵接部分离时，使所述锁扣件随着所述偏心转轴转动，在所述锁扣件抵接所述锁定抵接部时，所述偏心转轴克服所述弹性件的阻力相对于所述锁扣件转动，来推动所述锁扣件移动。
  2. 根据权利要求1所述的锁定机构，其特征在于，所述支架和所述偏心转轴之间设置有第一限位结构，限制所述偏心转轴相对于所述支架的转动。
  3. 根据权利要求2所述的锁定机构，其特征在于，所述第一限位结构包括形成于所述支架上的导槽和固定于所述偏心转轴的弹性伸缩件，所述偏心转轴转动时，所述弹性伸缩件沿所述导槽移动。
  4. 根据权利要求3所述的锁定机构，其特征在于，所述导槽的两端形成有深度比所述导槽深的限位孔，所述弹性伸缩件移动至所述限位孔内时，与所述限位孔定位配合。
  5. 根据权利要求3所述的锁定机构，其特征在于，所述弹性伸缩件包括弹性柱塞。
  6. 根据权利要求3所述的锁定机构，其特征在于，所述弹性伸缩件包括弹片。
  7. 根据权利要求3所述的锁定机构，其特征在于，所述偏心转轴的一侧凸设有安装凸起，所述弹性伸缩件固定安装于所述安装凸起内。
  8. 根据权利要求1所述的锁定机构，其特征在于，所述偏心转轴与所述锁扣件之间设置有第二限位结构，限制所述偏心转轴和所述锁扣件的相 对转动角度。
  9. 根据权利要求8所述的锁定机构，其特征在于，所述第二限位结构包括形成于所述偏心转轴和所述锁扣件中的一者上的限位凸起，和设于另一者上的限位槽，所述偏心转轴克服所述弹性件的阻力转动时，所述限位凸起在所述限位槽内滑动。
  10. 根据权利要求9所述的锁定机构，其特征在于，所述限位凸起形成于所述偏心转轴的外侧，所述限位槽形成于所述锁扣件的内侧。
  11. 根据权利要求1所述的锁定机构，其特征在于，所述偏心转轴的端部开设有转轴缺口，所述锁扣件的一侧开设有锁扣缺口，所述弹性件一端卡持于所述转轴缺口内，另一端卡持于所述锁扣缺口内。
  12. 根据权利要求1所述的锁定机构，其特征在于，所述弹性件包括扭簧，所述扭簧套设于所述偏心转轴的端部，且位于所述锁扣件内。
  13. 根据权利要求1所述的锁定机构，其特征在于，所述弹性件包括设置于所述偏心转轴和所述锁扣件之间的拉簧。
  14. 根据权利要求1所述的锁定机构，其特征在于，所述支架包括第一支架和与所述第一支架相对放置的第二支架，所述第一支架和所述第二支架夹持所述锁扣件，所述偏心转轴穿过所述第一支架和所述锁扣件。
  15. 根据权利要求14所述的锁定机构，其特征在于，所述第一支架形成有供所述偏心转轴穿过的第一通孔，且于所述第一通孔的外侧凸设有第一锁定凸台，所述第二支架形成有对应所述第一通孔的第二通孔，且于所述第二通孔的外侧凸设有第二锁定凸台，所述锁定抵接部包括对接的所述第一锁定凸台和所述第二锁定凸台。
  16. 根据权利要求1所述的锁定机构，其特征在于，所述锁扣件形成有供所述偏心转轴穿过的安装通孔，且于所述安装通孔的外侧延伸形成卡勾部，所述卡勾部在所述锁定抵接部的一侧转动。
  17. 根据权利要求16所述的锁定机构，其特征在于，所述偏心转轴的轴心偏向所述安装通孔连接所述卡勾部的一侧。
  18. 根据权利要求1所述的锁定机构，其特征在于，所述锁定机构包括与所述偏心转轴远离所述锁扣件的一端固定连接的旋钮。
  19. 一种云台，其特征在于，其包括：
    第一轴臂；
    第二轴臂，与所述第一轴臂铰接；
    锁定机构，安装于所述第一轴臂，能够锁紧所述第二轴臂和所述第一轴臂，所述锁定机构包括：
    支架，包括锁定抵接部，所述支架固定于所述第一轴臂；
    偏心转轴，转动安装于所述支架；
    锁扣件，与所述偏心转轴连接，所述锁扣件能够与所述第二轴臂锁扣连接；及
    弹性件，弹性连接所述锁扣件和所述偏心转轴，所述弹性件在所述锁扣件与所述锁定抵接部分离时，使所述锁扣件随着所述偏心转轴转动，在所述锁扣件抵接所述锁定抵接部时，所述锁扣件卡扣于所述第二轴臂，所述偏心转轴克服所述弹性件的阻力相对于所述锁扣件转动，推动所述锁扣件移动，拉动所述第二轴臂向所述第一轴臂靠近，来锁紧所述第一轴臂和所述第二轴臂。
  20. 根据权利要求19所述的云台，其特征在于，所述支架和所述偏心转轴之间设置有第一限位结构，限制所述偏心转轴相对于所述支架的转动。
  21. 根据权利要求20所述的云台，其特征在于，所述第一限位结构包括形成于所述支架上的导槽和固定于所述偏心转轴的弹性伸缩件，所述偏心转轴转动时，所述弹性伸缩件沿所述导槽移动。
  22. 根据权利要求21所述的云台，其特征在于，所述导槽的两端形成有深度比所述导槽深的限位孔，所述弹性伸缩件移动至所述限位孔内时，与所述限位孔定位配合。
  23. 根据权利要求21所述的云台，其特征在于，所述弹性伸缩件包 括弹性柱塞。
  24. 根据权利要求21所述的云台，其特征在于，所述弹性伸缩件包括弹片。
  25. 根据权利要求21所述的云台，其特征在于，所述偏心转轴的一侧凸设有安装凸起，所述弹性伸缩件固定安装于所述安装凸起内。
  26. 根据权利要求19所述的云台，其特征在于，所述偏心转轴与所述锁扣件之间设置有第二限位结构，限制所述偏心转轴和所述锁扣件的相对转动角度。
  27. 根据权利要求26所述的云台，其特征在于，所述第二限位结构包括形成于所述偏心转轴和所述锁扣件中的一者上的限位凸起，和设于另一者上的限位槽，所述偏心转轴克服所述弹性件的阻力转动时，所述限位凸起在所述限位槽内滑动。
  28. 根据权利要求27所述的云台，其特征在于，所述限位凸起形成于所述偏心转轴的外侧，所述限位槽形成于所述锁扣件的内侧。
  29. 根据权利要求19所述的云台，其特征在于，所述偏心转轴的端部开设有转轴缺口，所述锁扣件的一侧开设有锁扣缺口，所述弹性件一端卡持于所述转轴缺口内，另一端卡持于所述锁扣缺口内。
  30. 根据权利要求19所述的云台，其特征在于，所述弹性件包括扭簧，所述扭簧套设于所述偏心转轴的端部，且位于所述锁扣件内。
  31. 根据权利要求19所述的云台，其特征在于，所述弹性件包括设置于所述偏心转轴和所述锁扣件之间的拉簧。
  32. 根据权利要求19所述的云台，其特征在于，所述支架包括第一支架和与所述第一支架相对放置的第二支架，所述第一支架和所述第二支架夹持所述锁扣件，所述偏心转轴穿过所述第一支架和所述锁扣件。
  33. 根据权利要求32所述的云台，其特征在于，所述第一支架形成有供所述偏心转轴穿过的第一通孔，且于所述第一通孔的外侧凸设有第一锁定凸台，所述第二支架形成有对应所述第一通孔的第二通孔，且于所述 第二通孔的外侧凸设有第二锁定凸台，所述锁定抵接部包括对接的所述第一锁定凸台和所述第二锁定凸台。
  34. 根据权利要求19所述的云台，其特征在于，所述锁扣件形成有供所述偏心转轴穿过的安装通孔，且于所述安装通孔的外侧延伸形成卡勾部，所述卡勾部在所述锁定抵接部的一侧转动。
  35. 根据权利要求34所述的云台，其特征在于，所述偏心转轴的轴心偏向所述安装通孔连接所述卡勾部的一侧。
  36. 根据权利要求19所述的云台，其特征在于，所述锁定机构包括与所述偏心转轴远离所述锁扣件的一端固定连接的旋钮。
  37. 根据权利要求19所述的云台，其特征在于，所述第一轴臂的第一端和所述第二轴臂的第一端铰接，所述锁定机构安装于所述第一轴臂相对于所述第一端的第二端。
  38. 根据权利要求19所述的云台，其特征在于，所述第一轴臂开设有开孔，所述第二轴臂形成有卡持部，所述卡持部穿过所述开孔，与所述锁扣件卡持锁扣。
  39. 根据权利要求38所述的云台，其特征在于，所述卡持部开设有卡持孔，所述锁扣件卡持于所述卡持孔内。
  40. 一种云台轴臂的锁定方法，云台包括第一轴臂、与所述第一轴臂铰接的第二轴臂，以及锁定机构，所述锁定机构装设在第一轴臂上，所述第二轴臂的相应的一端设有卡持部，所述锁定机构包括装设于所述第一轴臂上的支架和活动安装于所述支架上的锁扣件，所述方法包括：朝第一方向转动锁扣件，使所述锁扣件朝向所述第二轴臂的卡持部靠近；继续朝向第一方向转动所述锁扣件，使其与所述卡持部卡扣；顶推所述锁扣件，使其顶持所述卡持部向靠近所述第一轴臂的方向平移。
  41. 根据权利要求40所述的锁定方法，其特征在于，所述支架包括锁定抵接部，所述锁定机构包括转动安装于所述支架且与所述锁扣件连接的偏心转轴，及弹性连接所述锁扣件和所述偏心转轴的弹性件，所述方法 包括：朝所述第一方向转动所述偏心转轴，带动所述锁扣件向靠近所述锁定抵接部的方向转动至接触所述锁定抵接部；继续朝第一方向转动所述偏心转轴，使所述弹性件弹性变形，使所述偏心转轴相对于所述锁扣件转动，来抵推所述锁扣件平移。
  42. 根据权利要求41所述的锁定方法，其特征在于，所述支架上形成有导槽，所述偏心转轴上固定有弹性伸缩件，所述方法包括：转动所述偏心转轴，使所述弹性伸缩件沿所述导槽移动。
  43. 根据权利要求42所述的锁定方法，其特征在于，所述导槽的两端形成有深度比所述导槽深的限位孔，所述方法包括：朝第一方向转动所述偏心转轴，使所述弹性伸缩件压缩，滑出所述导槽一端的所述限位孔；继续朝第一方向转动所述偏心转轴，使所述弹性伸缩件沿所述导槽滑动，滑至所述导槽另一端的所述限位孔内，与所述限位孔定位配合。
  44. 根据权利要求41所述的锁定方法，其特征在于，所述偏心转轴和所述锁扣件中的一者上形成有限位凸起，另一者上设有限位槽；所述方法包括：克服所述弹性件的阻力转动所述偏心转轴，使所述限位凸起在所述限位槽内滑动。
  45. 根据权利要求40所述的锁定方法，其特征在于，所述第一轴臂对应所述第二轴臂的所述卡持部的位置开设有开孔，所述方法包括：相对于所述第一轴臂转动所述第二轴臂，使所述卡持部穿过所述开孔。
  46. 一种云台，其特征在于，其包括：
    第一轴臂；
    第二轴臂，与所述第一轴臂铰接，且设有卡持部；及
    锁定机构，装设在所述第一轴臂对应所述卡持部的一端，所述锁定机构包括装设于所述第一轴臂上的支架和活动安装于所述支架上的锁扣件；所述锁扣件朝第一方向靠近所述第二轴臂的卡持部转动，与所述卡持部卡扣，所述锁扣件平移，顶持所述卡持部向靠近所述第一轴臂的方向平移。
  47. 根据权利要求46所述的云台，其特征在于，所述支架包括锁定 抵接部，所述锁定机构包括转动安装于所述支架且与所述锁扣件连接的偏心转轴，及弹性连接所述锁扣件和所述偏心转轴的弹性件，所述偏心转轴朝所述第一方向转动，带动所述锁扣件向靠近所述锁定抵接部的方向转动至接触所述锁定抵接部；所述偏心转轴继续朝第一方向转动，使所述弹性件弹性变形，使所述偏心转轴相对于所述锁扣件转动，来抵推所述锁扣件平移。
  48. 根据权利要求47所述的云台，其特征在于，所述支架上形成有导槽，所述偏心转轴上固定有弹性伸缩件，所述偏心转轴转动，使所述弹性伸缩件沿所述导槽移动。
  49. 根据权利要求48所述的云台，其特征在于，所述导槽的两端形成有深度比所述导槽深的限位孔；所述偏心转轴朝第一方向转动，使所述弹性伸缩件压缩，滑出所述导槽一端的所述限位孔；所述偏心转轴继续朝第一方向转动，使所述弹性伸缩件沿所述导槽滑动，滑至所述导槽另一端的所述限位孔内，与所述限位孔定位配合。
  50. 根据权利要求48所述的云台，其特征在于，所述弹性伸缩件包括弹性柱塞。
  51. 根据权利要求48所述的云台，其特征在于，所述弹性伸缩件包括弹片。
  52. 根据权利要求47所述的云台，其特征在于，所述偏心转轴和所述锁扣件中的一者上形成有限位凸起，另一者上设有限位槽；所述偏心转轴克服所述弹性件的阻力转动时，使所述限位凸起在所述限位槽内滑动。
  53. 根据权利要求47所述的云台，其特征在于，所述偏心转轴的端部开设有转轴缺口，所述锁扣件的一侧开设有锁扣缺口，所述弹性件一端卡持于所述转轴缺口内，另一端卡持于所述锁扣缺口内。
  54. 根据权利要求46所述的云台，其特征在于，所述第一轴臂对应所述第二轴臂的所述卡持部的位置开设有开孔，所述第二轴臂相对于所述第一轴臂转动，使所述卡持部穿过所述开孔。
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