WO2019205185A1 - 手持云台及其夹持机构 - Google Patents

手持云台及其夹持机构 Download PDF

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Publication number
WO2019205185A1
WO2019205185A1 PCT/CN2018/085835 CN2018085835W WO2019205185A1 WO 2019205185 A1 WO2019205185 A1 WO 2019205185A1 CN 2018085835 W CN2018085835 W CN 2018085835W WO 2019205185 A1 WO2019205185 A1 WO 2019205185A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping
main body
jaws
center
disposed
Prior art date
Application number
PCT/CN2018/085835
Other languages
English (en)
French (fr)
Inventor
李�杰
罗伟波
Original Assignee
广东思锐光学股份有限公司
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
Priority claimed from CN201810403891.3A external-priority patent/CN108426157B/zh
Application filed by 广东思锐光学股份有限公司 filed Critical 广东思锐光学股份有限公司
Priority to EP18759838.8A priority Critical patent/EP3582473A1/en
Priority to US16/478,049 priority patent/US11442344B2/en
Publication of WO2019205185A1 publication Critical patent/WO2019205185A1/zh

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/56—Accessories
    • G03B17/563—Camera grips, handles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/04—Supports for telephone transmitters or receivers
    • 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
    • F16M11/041—Allowing quick release of the apparatus
    • 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
    • F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • F16M11/105—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis the horizontal axis being the roll axis, e.g. for creating a landscape-portrait rotation
    • 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
    • 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
    • F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
    • 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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/56—Accessories
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/56—Accessories
    • G03B17/561—Support related camera accessories
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1632—External expansion units, e.g. docking stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3877—Arrangements for enabling portable transceivers to be used in a fixed position, e.g. cradles or boosters

Definitions

  • the invention relates to the technical field of photographing equipment, in particular to a handheld cloud platform and a clamping mechanism thereof.
  • the handheld pan/tilt generally includes a handle and a gimbal disposed on the handle.
  • the pan/tilt has a clamping mechanism for holding the photographing device, and the handheld pan/tilt is further divided into a single-axis and a multi-axis, a single-axis handheld pan/tilt or a multi-axis handheld pan/tilt It can drive the pan/tilt to rotate in a single dimension or multiple dimensions to achieve stable pan/tilt.
  • the axis of one rotating shaft is parallel to the optical axis of the lens of the holding camera, and the rotating shaft is a rolling axis, which can drive the camera to reciprocate in its plane.
  • the clamping center of the clamping mechanism is close to or coincides with the axis of the rolling axis, which is convenient for the rolling motor to drive the shooting device to rotate freely, but with the appearance of new shooting equipment or new auxiliary components on the original shooting equipment, All of them make the center of gravity of the shooting device deviate from the preset center of gravity of the handheld pan/tilt.
  • the motor load is increased, the power consumption of the device is increased, and the battery life is shortened; on the other hand, the user's grip discomfort is increased, which is more likely to occur. Use fatigue.
  • a handheld cloud platform with adjustable center of gravity is provided, and the mobile phone holder includes an upper clamp and a lower clamp connected by a telescopic assembly, and a clamp main body that is slidably disposed on the telescopic assembly, and the handheld cloud platform also has an installation.
  • the posture arm of the mobile phone holder and the main body of the clip are simultaneously slidably disposed on the posture arm.
  • the prior art enables the clamped photographing device to move up, down, left and right relative to the roll axis to adjust the position of the center of gravity, its up and down adjustment in the direction perpendicular to the posture arm is not reliable, and the telescopic assembly includes the slide rail and can The screw telescopically retracted in the slide rail, the clip body is slidably disposed on the slide rail, and the adjustment device moves the slide device up and down by linear sliding in the clip body during the adjustment, but in actual use, once the photographing device is clamped On the mobile phone clip, the upper clip is clamped under the force of the spring, and the mobile phone is still clamped in the middle of the clip.
  • the upper clip and the lower clip are symmetric with respect to the position of the mobile phone, which is no different from the ordinary elastic jaw, and cannot be adjusted at all. .
  • the technical problem to be solved by the present invention is to overcome the defect that the clamping mechanism of the handheld pan/tilt in the prior art cannot adjust the position of the center of gravity of the photographing device during use, thereby providing a position of the center of gravity of the photographing device being clamped.
  • a gripping mechanism for the handheld pan/tilt that adjusts to make the center of gravity of the photographing device more closely match the preset center of gravity of the pan/tilt.
  • a clamping mechanism for a handheld pan/tilt head comprising: a main body; a clamping jaw, a pair of activities are disposed on the main body, and each of the clamping jaws is reciprocable relative to the main body in a clamping direction thereof; Holding a width maintaining mechanism disposed on the main body for maintaining a clamping width of each pair of the clamping jaws to be adapted to a photographing device to be clamped; an adjusting mechanism disposed on the main body for adjusting each pair a spacing between one of the jaws and the body in the clamping direction for adjusting each pair while maintaining a constant clamping width of each pair of the jaws The relative position of the clamping center of the jaw to the center of the body.
  • the grip center is a straight line passing through the center of a pair of jaws in the gripping direction.
  • the jaws on the main body are disposed in pairs, and each of the jaws is reciprocable relative to the main body in a clamping direction thereof, and an adjustment mechanism acts on one of each pair of jaws to move relative to the main body, changing the The distance between the jaws and the main body in the clamping direction, when the clamping width of the pair of jaws remains unchanged, the spacing between one jaw and the main body is adjustable, and the other jaw is also driven Move to change the center of the grip of the pair of jaws.
  • the shooting device is placed in a pair of jaws.
  • the clamping center of the pair of jaws can be changed. Regardless of whether the clamping width of a pair of jaws is always fixed, it can be adjusted to maintain it at a different set width.
  • adjusting one of the jaws to approach or away from the body necessarily drives the other jaw away from or near the body, such that a pair of jaws
  • the clamping center moves accordingly; when the spacing between the pair of jaws can be adjusted by the movement of the two relative to the main body and the spacing of the respective bodies to the main body, the clamping center can also be moved freely, and the adjustment range is Larger; when the spacing between a pair of jaws can be adjusted by respectively moving the two relative to the main body, respectively adjusting the spacing to the main body, but when the two are elastically tensioned, the photographing device is clamped in one In the jaws, the clamping width of the jaws remains unchanged, and when one of the jaws is adjusted to be close to or away from the body, the other must also be adjusted as it moves away from or near the body.
  • the center of gravity of the photographing device held on the jaws can be moved by adjusting the center of the grip of the jaws in a direction opposite to the direction of the deviation.
  • the center of gravity of the shooting device Moving toward the center of the main body, alleviating the bias of the shooting device, so that the center of gravity of the shooting device is as close as possible to the center of the main body, thereby adjusting the center of gravity of the handheld gimbal, and is more advantageous for holding the gimbal after holding the shooting device.
  • Self-balancing, and the appropriate center of gravity position can also reduce the corresponding motor loss, making the motor easier to move the gimbal.
  • the adjustment mechanism includes an adjustment structure that drives the jaws to move relative to the body, and a drive structure that drives the adjustment structure.
  • the user adjusts the relative position of the jaw and the main body through the driving structure driving adjustment structure, and the adjustment is more convenient.
  • the driving structure can be an electric driving structure or a manual driving structure.
  • the drive structure is disposed on an outer side of the jaw.
  • the driving structure is arranged at this position, the design is reasonable, and the adjustment is convenient, and the operation driving structure is not interfered by the movement of the jaws.
  • the adjustment structure is a thread adjustment structure.
  • the thread matching movement transforms the thread matching movement into a close movement away from the jaw and the main body, and the structure is simple, the operation is convenient, and the damage is not easy.
  • the thread adjusting structure may be a matching structure of a screw and a nut, or may be a mating structure of a screw nut.
  • the lead screw is disposed on the main body, and the clamping jaw has an internal thread structure, and the clamping jaw is threadedly engaged with the lead screw through the internal thread structure thereof. The activity is set on the lead screw, and the claw is rotated to reciprocate itself along the lead screw.
  • the thread adjustment structure includes an internal thread structure disposed on the main body, and a screw connected to the jaw to be adjusted, the screw is threadedly engaged with the internal thread structure to drive the jaw toward Or reciprocating away from the direction of the body.
  • the driving structure is an adjusting knob fixedly disposed at an end of the screw, and the adjusting knob is rotated to drive the screw to be threadedly engaged with the internal thread structure. Rotate the adjustment knob to tighten the screw so that the jaws are close to the main body. Turn the adjustment knob to loosen the screw to keep the jaws away from the main body.
  • the screw is disposed through the jaw, and the adjustment knob is disposed outside the jaw.
  • the screw may also not penetrate the jaws, and the end of the screw is fixedly connected to the adjustment knob, the end of the adjustment knob abuts against the inner side of the jaw, the rotation adjustment knob pushes the jaw away from the main body, or releases the jaw close to the main body.
  • the clamping width holding mechanism is an elastic clamping mechanism.
  • the clamping width can be automatically adjusted by the elastic clamping force, which is more convenient and comfortable to use.
  • the elastic clamping mechanism includes a receiving cavity disposed on the main body, a sliding bar slidably engaged with the receiving cavity, and a resilient biasing member disposed between the sliding bar and the receiving cavity, The elastic biasing force of the elastic biasing member acts on the sliding bar to cause the sliding bar to have a tendency to retract into the receiving cavity, and the clamping jaw is coupled to an end of the sliding bar that protrudes from the receiving cavity.
  • the clamping width retaining mechanism may also be a connecting rod fixedly connected between the pair of jaws, the length of the connecting rod is fixed, and when the clamping width of the pair of jaws is maintained at the set width, the adjusting mechanism adjusts one of them.
  • the jaws can move the other jaws to adjust the center of the clamp; or the connecting rods are telescopic rods, and the locking structure can lock the clamping positions of the pair of jaws at different clamping widths.
  • the clamping width retaining mechanism can also be an adjusting mechanism acting on the other jaw of the pair of jaws, and the two adjusting mechanisms respectively act on the two jaws, so that the spacing between the two jaws to the body can be independent.
  • the adjustment of the separate, then the clamping center can naturally move freely, the adjustment range is larger.
  • the clamping jaw includes a fixing portion and a movable portion movably coupled to the fixing portion, the fixing portion is disposed on the main body, and the movable portion has a storage state close to the main body and a clip away from the main body Hold the status. It is convenient to reduce the volume of the clamping mechanism and is convenient to carry. It should be noted that the storage may be a folding storage, or may be a telescopic storage or the like.
  • the movable portion is hinged to the fixed portion, and the movable portion is rotatable toward or away from the clamping center to switch between the stored state and the clamped state.
  • a handheld pan/tilt head includes a handle and a clamping mechanism disposed on the handle, and a body of the clamping mechanism is disposed on the handle.
  • the handle is provided with a rotating portion that is rotatable relative to the handle, and a body of the clamping mechanism is fixedly disposed on the rotating portion.
  • the brush motor is simpler in structure and cheaper than the brushless motor, and the technology and process are more mature and reliable.
  • the brush motor can be a DC brush motor.
  • FIG. 1 is a three-dimensional structural diagram of a movable portion of a gripper of a handheld pan/tilt provided in a storage state according to a first embodiment of the present invention
  • FIG. 2 is a schematic perspective view showing the movable portion of the gripper of the handheld pan/tilt shown in FIG. 1 in a clamped state;
  • Figure 3 is a rear elevational view of the handheld pan/tilt holding and photographing apparatus of Figure 1;
  • Figure 4 is a right side view of the handheld pan/tilt holding and photographing apparatus shown in Figure 3;
  • Figure 5 is an enlarged schematic view of the portion A shown in Figure 4.
  • Figure 6 is a partial cross-sectional view of the handheld pan/tilt holding and photographing apparatus of Figure 4;
  • Figure 7 is another partial cross-sectional view of the handheld pan/tilt holding and photographing apparatus of Figure 1;
  • FIG. 8 is a schematic view showing the process of adjusting the clamping center when the handheld pan/tilt head of FIG. 1 holds the photographing device.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • the clamping mechanism 1 for a handheld pan/tilt includes: a main body 11; a pair of clamping jaws 12, and a pair of activities are disposed on the main body 11, and each The clamping jaw 12 is reciprocally movable relative to the main body 11 in a clamping direction thereof; a clamping width retaining mechanism is disposed on the main body 11 for holding a clamping width of each pair of the clamping jaws 12
  • the clamping photographing device 3 is adapted; an adjusting mechanism is disposed on the main body 11 for adjusting one of the pair of jaws 12 and the main body 11 in the clamping direction The spacing between the two is used to adjust the relative position of the center of the clamping of each pair of the jaws 12 to the center of the body 11 while maintaining the clamping width of each pair of the jaws 12.
  • the grip center is a straight line passing through the center line of the pair of jaws 12 in the clamping direction.
  • the jaws 12 on the main body 11 are disposed in pairs, and each of the jaws 12 is reciprocally movable relative to the main body 11 in its clamping direction, and an adjustment mechanism acts on one of each pair of jaws 12 to make it relatively Moving in the main body 11, changing the distance between the jaws 12 and the main body 11 in the clamping direction, in the case where the clamping width of the pair of jaws 12 remains unchanged, such that between the jaws 12 and the main body 11
  • the spacing is adjustable, and the other jaw 12 is moved along with it, so that the center of the clamping of the pair of jaws 12 can be changed.
  • the photographing device 3 is placed in a pair of jaws 12, and at this time, if the center of gravity of the photographing device 3 is offset from the center of the grip of the jaws 12, the spacing between one of the jaws 12 and the main body 11 is adjusted, and the pair of clips can be changed.
  • the center of the grip of the pawl 12, regardless of whether the grip width of the pair of jaws 12 is always fixed, can be adjusted to maintain a different set width.
  • adjusting one of the jaws 12 to approach or away from the body 11 necessarily drives the other jaw 12 away from or near the body 11,
  • the center of the clamping of the pair of jaws 12 is moved accordingly; when the spacing between the pair of jaws 12 can be adjusted by the movement of the two relative to the body 11, respectively, and the spacing of the respective bodies 11 is adjusted, then the clamping is performed.
  • the center can also be moved freely, and the adjustment range is larger; when the distance between the pair of jaws 12 can be adjusted by the movement of the two relative to the main body 11, respectively, adjusting the spacing of the respective bodies 11 to the main body 11, but between the two
  • the photographing device 3 is clamped in the pair of jaws 12, the clamping width of the jaws 12 remains unchanged, and when one of the jaws 12 is adjusted to be close to or away from the body 11, the other is necessarily away Or close to the main body 11, the center of the grip is also adjusted.
  • the gripping center of the gripping claw 12 can be moved relative to the main body 11 in a direction opposite to the direction of the deviation so that the photographing is performed on the gripper 12
  • the center of gravity of the device 3 is correspondingly moved toward the center of the main body 11, which relieves the bias of the photographing device 3, so that the center of gravity of the photographing device 3 is as close as possible to the center of the main body 11, thereby adjusting the center of gravity of the handheld gimbal, and more Conducive to the self-balancing of the handheld PTZ after holding the shooting device 3, and the appropriate center of gravity position can also reduce the corresponding motor loss, making the motor easier to move the gimbal.
  • the clamping width holding mechanism is an elastic clamping mechanism 1 .
  • the elastic clamping mechanism 1 includes a receiving cavity 111 disposed on the main body 11 , a sliding bar 112 slidably engaged with the receiving cavity 111 , and a sliding bar 112 and the receiving cavity 111 .
  • the elastic biasing member 113, the elastic biasing force of the elastic biasing member 113 acts on the sliding bar 112, so that the sliding bar 112 has a tendency to retract into the receiving cavity 111, and the clamping jaw 12 is connected to the sliding bar 112 to extend out of the receiving cavity 111.
  • Each of the clamping jaws 12 is connected with two sliding rods 112 arranged in parallel.
  • the main body 11 has two receiving chambers 111 adapted to slide the sliding rod 112, and the elastic biasing members 113 are sleeved on each of the sliding rods 112.
  • the opening of the accommodating chamber 111 is provided with a radial boss having a smaller diameter
  • the sliding rod 112 is provided with a radial boss having a larger diameter
  • the elastic compression spring is located between the two radial bosses. The axial ends thereof are respectively abutted on the two radial bosses.
  • the jaws 12 When the elastic compression spring is in the natural state, the jaws 12 are in the initial position, and when the elastic compression spring is in the stretched state, the jaws 12 are in the clamping position. In position, the restoring force of the elastic compression spring acts on the jaws 12 to have a tendency to return to the initial position, achieving elastic clamping of the photographing apparatus 3.
  • the adjustment mechanism includes an adjustment structure that drives the relative movement of the jaws 12 and the main body 11, and a drive structure that drives the adjustment structure.
  • the user adjusts the relative position of the clamping jaw 12 and the main body 11 by the driving structure driving adjustment structure, and the adjustment is more convenient; and the driving structure is disposed on the outer side of the clamping jaw 12, and the driving structure is disposed at the position, and the design is reasonable and convenient to adjust.
  • the operation drive structure is not interfered by the movement of the jaws 12.
  • the driving structure is a manual driving structure.
  • the adjustment structure is a thread adjustment structure.
  • the thread adjustment structure includes an internal thread structure disposed on the main body 11, and a screw 13 coupled to the jaw 12 to be adjusted, the screw 13 being threadedly engaged with the internal thread structure to drive the jaw
  • the reciprocating movement is 12 toward or away from the main body 11, and the structure is simple, the operation is convenient, and the damage is not easy.
  • the driving structure is an adjusting knob 14 fixedly disposed at an end of the screw 13, and the adjusting knob 14 is rotated to drive the screw 13 to be threadedly engaged with the internal thread structure. Rotating the adjusting knob 14 to tighten the screw 13, so that the clamping jaw 12 is close to the main body 11, and the adjusting knob 14 is rotated to loosen the screw 13, so that the clamping jaw 12 is away from the main body 11, and the screw 13 is disposed through the clamping jaw 12, and the adjusting knob 14 is set. On the outside of the jaws 12.
  • the screw 13 may not extend through the clamping jaw 12, and the end of the screw 13 is fixedly connected to the adjusting knob 14, the end of the adjusting knob 14 abuts against the inner side of the clamping jaw 12, and the rotation adjusting knob 14 pushes the clamping jaw 12 away from the main body 11, or releases the clip.
  • the pawl 12 is adjacent to the body 11.
  • the clamping jaw 12 includes a fixing portion 121 and a movable portion 122 movably connected to the fixing portion 121.
  • the fixing portion 121 is disposed on the main body 11, and the movable portion 122 has a stored state close to the main body 11 and a clamping state away from the main body 11.
  • the movable portion 122 is hinged to the fixed portion 121, and the movable portion 122 is rotatable toward or away from the center of the clamp, and is switched between the stored state and the clamped state. It is convenient to reduce the volume of the clamping mechanism 1 and is convenient to carry.
  • the embodiment further provides a handheld pan/tilt head, specifically a single-axis handheld pan/tilt head, comprising a handle 2, a rotating portion 21 disposed on the handle 2, and the above-mentioned clamping mechanism 1 disposed on the rotating portion 21, through the adjusting clip
  • the center of gravity of the holding mechanism 1 is adapted to the center of rotation of the rotating portion 21, which reduces the load on the driving mechanism that drives the rotating portion 21 to be increased due to the deviation of the center of gravity of the photographing device 3 from the predetermined center of gravity of the handheld head.
  • the power consumption of the equipment is increased, the battery life is shortened, and even the overload protection causes the gimbal to be unusable.
  • the brush motor 22 is simpler in structure and cheaper than the brushless motor, and the technology and process are more mature and reliable.
  • the brush motor 22 can be a DC brush motor 22.
  • the working process of the handheld gimbal is as follows: As shown in Figure 3-4, the photographing device 3 is a mobile phone with an auxiliary component added to the lens, and the center of gravity of the photographing device 3 is moved downward relative to the center of gravity of the mobile phone itself, and the gripper 12 is opened to shoot.
  • the device 3 is clamped between a pair of jaws 12, and under the action of the elastic clamping mechanism 1, the jaws 12 elastically clamp the imaging device 3, without being affected by the adjustment mechanism, at this time, the pair of jaws 12 Symmetrically distributed on both sides of the main body 11, causing the center of gravity of the photographing apparatus 3 to be located below the center of the main body 11, and the center of the main body 11 coincides with the driving axis of the rotational center driving mechanism of the rotating portion 21, so that the center of gravity of the photographing apparatus 3 is located The center of rotation of the rotating portion 21 and the driving shaft below the driving mechanism cause a center of gravity deviation. At this time, as shown in FIG.
  • the adjustment knob 14 is rotated, and the screw 13 is tightened, and the distance between the jaw 12 directly pushed by the screw 13 and the main body 11 is gradually reduced, since the clamping width is always maintained.
  • the photographing device 3 is matched, and the other jaw 12 is moved to gradually increase the distance from the main body 11, so that the pair of jaws 12 as a whole move upward relative to the handle 2, and the grip center moves up, and the main body 11 is relatively fixed with the handle 2, that is, the center of the clamping of the pair of jaws 12 is moved upward relative to the center of the main body 11, causing the center of gravity of the photographing apparatus 3 to move up, closer to the center of the main body 11 and the center of rotation of the rotating portion 21.
  • the driving axis of the mechanism makes the center of gravity of the photographing device 3 more closely match the preset center of gravity area of the handheld pan/tilt; otherwise, if the center of gravity of the photographing device 3 is higher than the center of the main body 11, the screw 13 is reversely adjusted to make the photographing device 3 The center of gravity can be moved down.
  • the driving structure may be an electric driving structure, and the motor is driven by the button to drive the screw to rotate in the forward and reverse directions.
  • the thread adjusting structure may be a mating structure of a screw and a nut, or may be a mating structure of a threaded nut.
  • the lead screw is disposed on the main body, and the clamping jaw has an internal thread structure, and the clamping jaw passes The internal thread structure cooperates with the screw thread, and is disposed on the lead screw, and rotates the jaw to reciprocate itself along the screw.
  • the movable portion of the clamping jaw may also be a telescopic storage, and the fixing portion has an insertion cavity adapted for the insertion of the movable portion.
  • the movable portion can be fixed at the position of the protruding insertion cavity.
  • the movable portion can be retracted into the insertion cavity for easy storage.
  • the clamping width maintaining mechanism may further be a connecting rod fixedly connected between the pair of jaws, the length of the connecting rod is fixed, the connecting rod is disposed through the main body, or is disposed on the surface of the main body.
  • the adjusting mechanism adjusts one of the jaws to move the other jaw to adjust the clamping center; or the connecting rod is a telescopic rod, and the locking is matched
  • the structure is capable of locking the clamping position of a pair of jaws at different clamping widths.
  • the clamping width retaining mechanism may also be an adjusting mechanism acting on the other of the pair of jaws, and the two adjusting mechanisms respectively act on the two jaws to make two
  • the spacing between the jaws and the body can be independently adjusted separately, so the clamping center can naturally move at will, and the adjustment range is larger.
  • the handheld pan/tilt is a three-axis handheld pan/tilt.

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Abstract

一种手持云台及其夹持机构，涉及拍摄器材技术领域，其夹持机构包括：主体（11）；夹爪（12），成对的活动设置于主体（11）上，且每个夹爪（12）能够沿其夹持方向相对于主体（11）往复移动；夹持宽度保持机构，设置于主体（11）上，用于保持每对夹爪（12）的夹持宽度与待夹持的拍摄设备（3）相适应；调节机构，设置于主体（11）上，用于调节每对夹爪（12）中的一个夹爪（12）与主体（11）在夹持方向上之间的间距，用以在保持每对夹爪（12）的夹持宽度不变的情况下，调节每对夹爪（12）的夹持中心与主体（11）的中心的相对位置。该手持云台及其夹持机构，能够在使用过程中对所夹持的拍摄设备的重心位置进行调节，使拍摄设备的重心位置与云台的预设重心区域更加匹配，降低电机负载，使用更加方便舒适。

Description

手持云台及其夹持机构 技术领域
本发明涉及拍摄器材技术领域，具体涉及一种手持云台及其夹持机构。
背景技术
随着直播行业的火爆和摄影活动在普通大众间的普及流行，手持云台的应用越来越广泛。手持云台一般包括手柄和设置在手柄上的云台，云台具有夹持拍摄设备的夹持机构，手持云台又分为单轴和多轴，单轴手持云台或多轴手持云台能够驱动云台能够在单一维度或多个维度内转动，实现云台的稳定跟拍。无论单轴还是多轴手持稳定器，都有一个转动轴的轴线与所夹持拍摄设备的镜头的光轴平行，该转动轴即为横滚轴，能够带动拍摄设备在其所在平面内往复转动。一般夹持机构的夹持中心尽量与横滚轴的轴线靠近或一致，便于横滚电机带动拍摄设备自由转动，但随着新型拍摄设备的出现，或者在原有拍摄设备上新增加的辅助部件，都使得拍摄设备的重心偏离手持云台的预设重心区域，一方面增加了电机负载，致使设备功耗加大，续航时间缩短；另一方面也增加了使用者的握持不适，更容易出现使用疲劳。
为此，现有技术中出现一种可调节重心的手持云台，其手机夹包括通过伸缩组件连接的上夹、下夹，以及滑动设置于伸缩组件上的夹主体，手持云台还具有安装手机夹的姿态臂，夹主体同时滑动设置于姿态臂上。该现有技术虽然使得所夹持的拍摄设备能够相对于横滚轴上下左右移动，调节重心位置，但是其在垂直于姿态臂方向上的上下调节并不可靠，其伸缩组件包括滑轨和能够在滑轨内伸缩的螺杆，夹主体滑动设置在滑轨上，在 调节时是通过滑轨在夹主体内的直线滑动实现拍摄设备的上下移动，但实际使用过程中，一旦将拍摄设备夹持在手机夹上，上夹下夹在弹簧作用力下仍会将手机夹持在夹子中间，上夹、下夹相对于手机的位置对称，与普通弹性夹爪无异，根本无法起到调节作用。
发明内容
因此，本发明要解决的技术问题在于克服现有技术中手持云台的夹持机构在使用过程中无法调节拍摄设备重心位置的缺陷，从而提供一种能够对所夹持的拍摄设备的重心位置进行调节，使拍摄设备的重心位置与云台的预设重心区域更加匹配的手持云台用夹持机构。
进一步提供一种具有上述夹持机构的手持云台。
本发明采用的技术方案如下：
一种手持云台用夹持机构，包括：主体；夹爪，成对的活动设置于所述主体上，且每个所述夹爪能够沿其夹持方向相对于所述主体往复移动；夹持宽度保持机构，设置于所述主体上，用于保持每对所述夹爪的夹持宽度与待夹持的拍摄设备相适应；调节机构，设置于所述主体上，用于调节每对所述夹爪中的一个所述夹爪与所述主体在所述夹持方向上之间的间距，用以在保持每对所述夹爪的夹持宽度不变的情况下，调节每对所述夹爪的夹持中心与所述主体的中心的相对位置。
所述夹持中心为沿夹持方向经过一对夹爪的中心的直线。主体上的夹爪成对设置，且每个夹爪都能够沿其夹持方向相对于主体往复移动，调节机构作用于每对夹爪中的一个夹爪，使其相对于主体移动，改变该夹爪在 夹持方向上与主体之间的间距，在一对夹爪夹持宽度保持不变的情况下，使得一个夹爪与主体之间的间距可调，带动另一个夹爪也随之移动，即可改变一对夹爪的夹持中心。将拍摄设备放置于一对夹爪中，此时若拍摄设备的重心偏离夹爪的夹持中心，调节其中一个夹爪与主体之间的间距，即可改变一对夹爪的夹持中心，无论一对夹爪的夹持宽度是始终固定不变，还是可以通过调节使其保持在不同的设定宽度。例如，当一对夹爪之间的间距始终固定不变，即二者保持同步移动，调节其中一个夹爪靠近或远离主体时，必然带动另一个夹爪远离或靠近主体，使得一对夹爪的夹持中心随之移动；当一对夹爪之间的间距能够通过二者分别相对于主体的移动、分别调节各自到主体的间距进行调节，那么夹持中心自然也能随意移动，调节范围更大；当一对夹爪之间的间距能够通过二者分别相对于主体的移动、分别调节各自到主体的间距进行调节，但二者之间又弹性张紧时，拍摄设备夹持在一对夹爪中，夹爪的夹持宽度保持不变，调节其中一个夹爪靠近或远离主体时，另一个也必然随着远离或靠近主体，夹持中心也得到调节。如此设置，当拍摄设备的重心与主体的中心偏离时，可通过调整夹爪的夹持中心朝向与偏离方向相反的方向相对于主体移动，使得夹持在夹爪上的拍摄设备的重心相应地朝向靠近主体的中心的方向移动，缓解拍摄设备偏重的情况，使拍摄设备的重心尽量接近主体的中心，从而起到调节手持云台重心的作用，更有利于夹持拍摄设备后手持云台的自身平衡，同时合适的重心位置也能降低相应的电机损耗，使电机更轻松的带动云台移动。
所述调节机构包括驱动所述夹爪与所述主体相对移动的调节结构，和 驱动所述调节结构的驱动结构。用户通过驱动结构驱动调节结构对夹爪与主体的相对位置进行调节，调节更加方便，驱动结构可以为电动驱动结构，也可以为手动驱动结构。
所述驱动结构设置于所述夹爪的外侧。驱动结构设置在此位置处，设计合理，方便调节，操作驱动结构不受夹爪移动干涉。
所述调节结构为螺纹调节结构。通过螺纹调节结构将螺纹配合运动转化为夹爪与主体之间的靠近远离运动，结构简单，操作方便，不易损坏。螺纹调节结构可以为螺杆与螺母的配合结构，也可以为丝杠丝母的配合结构，丝杠设置在主体上，夹爪具有内螺纹结构，夹爪通过其内螺纹结构与丝杠螺纹配合，活动设置在丝杠上，转动夹爪使其自身沿丝杠往复移动。
所述螺纹调节结构包括设置于所述主体上的内螺纹结构，和连接于待调节的所述夹爪上的螺杆，所述螺杆与所述内螺纹结构螺纹配合，带动所述夹爪朝向靠近或远离所述主体的方向往复移动。
所述驱动结构为固定设置于所述螺杆端部的调节旋钮，旋转所述调节旋钮驱动所述螺杆与所述内螺纹结构螺纹配合。旋转调节旋钮旋紧螺杆，使夹爪靠近主体，旋转调节旋钮旋松螺杆，使夹爪远离主体。
所述螺杆贯穿所述夹爪设置，所述调节旋钮设置于所述夹爪的外侧。螺杆也可以不贯穿夹爪，螺杆的端部固定连接调节旋钮，调节旋钮的端部抵靠夹爪的内侧，旋转调节旋钮推动夹爪远离主体，或释放夹爪靠近主体。
所述夹持宽度保持机构为弹性夹持机构。能够通过弹性夹持力自动调节夹持宽度，使用更加方便舒适。
所述弹性夹持机构包括设置于所述主体上的容纳腔，与所述容纳腔滑动配合的滑杆，以及设于所述滑杆与所述容纳腔之间的弹性偏压件，所述弹性偏压件的弹性偏压力作用于所述滑杆，使所述滑杆具有缩入所述容纳腔的趋势，所述夹爪连接于所述滑杆伸出所述容纳腔的一端。
夹持宽度保持机构还可以为固定连接在一对夹爪之间的连接杆，连接杆的长度固定不变，当一对夹爪的夹持宽度保持在设定宽度时，调节机构调节其中一个夹爪即可带动另一个夹爪移动，从而实现夹持中心的调节；或者连接杆为伸缩杆，配合锁定结构能够将一对夹爪的夹持位置锁定在不同夹持宽度处。
夹持宽度保持机构还可以为作用于一对夹爪的另一个夹爪上的调节机构，两个调节机构分别作用于两个夹爪上，使两个夹爪到主体之间的间距可以独立的分别调节，那么夹持中心自然也能随意移动，调节范围更大。
所述夹爪包括固定部及活动连接于所述固定部上的活动部，所述固定部设置于所述主体上，所述活动部具有靠近所述主体的收纳状态和远离所述主体的夹持状态。便于缩小夹持机构体积，方便携带。需要说明的是，收纳可以为折叠收纳，也可以为伸缩收纳等。
所述活动部铰接于所述固定部上，所述活动部能够朝向或背向所述夹持中心转动，在所述收纳状态和所述夹持状态之间切换。
一种手持云台，包括手柄，及设置于所述手柄上的上述夹持机构，夹持机构的主体设置在手柄上。通过调节夹持机构的重心位置，使夹持重心与手持云台的重心更加适应，方便用户举握，使用更加方便省力。
所述手柄上设置有能够相对于所述手柄转动的转动部，所述夹持机构的主体固定设置于所述转动部上。通过调整夹持机构的夹持重心与转动部的转动中心相适应，降低，避免了由于拍摄设备的重心偏离手持云台的预设重心区域，使得驱动转动部转动的驱动机构负载增加，致使设备功耗加大，续航时间缩短，甚至出现过载保护导致云台无法使用的情况。
还包括驱动所述转动部转动的驱动机构，所述驱动机构为有刷电机。有刷电机比无刷电机结构简单，价格便宜，技术和工艺更加成熟可靠。有刷电机可以为直流有刷电机。
附图说明
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明的实施例一中提供的手持云台的夹爪活动部位于收纳状态的立体结构示意图；
图2为图1所示手持云台的夹爪活动部位于夹持状态的立体结构示意图；
图3为图1所示手持云台夹持拍摄设备的后视图；
图4为图3所示手持云台夹持拍摄设备的右视图；
图5为图4所示A处的放大示意图；
图6为图4所示手持云台夹持拍摄设备的局部剖视图；
图7为图1所示手持云台夹持拍摄设备的另一局部剖视图；
图8为图1所示手持云台夹持拍摄设备时调节夹持中心的过程示意图。
附图标记说明：
1-夹持机构；11-主体；111-容纳腔；112-滑杆；113-弹性偏压件；12-夹爪；121-固定部；122-活动部；13-螺杆；14-调节旋钮；2-手柄；21-转动部；22-有刷电机；3-拍摄设备。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，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，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本 发明中的具体含义。
此外，下面所描述的本发明不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
实施例一
如图1-8所示，本实施例提供的一种手持云台用夹持机构1，包括：主体11；一对夹爪12，成对的活动设置于所述主体11上，且每个所述夹爪12能够沿其夹持方向相对于所述主体11往复移动；夹持宽度保持机构，设置于所述主体11上，用于保持每对所述夹爪12的夹持宽度与待夹持的拍摄设备3相适应；调节机构，设置于所述主体11上，用于调节每对所述夹爪12中的一个所述夹爪12与所述主体11在所述夹持方向上之间的间距，用以在保持每对所述夹爪12的夹持宽度不变的情况下，调节每对所述夹爪12的夹持中心与所述主体11的中心的相对位置。
所述夹持中心为沿夹持方向上经过一对夹爪12的中心连线的直线。主体11上的夹爪12成对设置，且每个夹爪12都能够沿其夹持方向相对于主体11往复移动，调节机构作用于每对夹爪12中的一个夹爪12，使其相对于主体11移动，改变该夹爪12在夹持方向上与主体11之间的间距，在一对夹爪12夹持宽度保持不变的情况下，使得一个夹爪12与主体11之间的间距可调，带动另一个夹爪12也随之移动，即可改变一对夹爪12的夹持中心。将拍摄设备3放置于一对夹爪12中，此时若拍摄设备3的重心偏离夹爪12的夹持中心，调节其中一个夹爪12与主体11之间的间距，即可改变一对夹爪12的夹持中心，无论一对夹爪12的夹持宽度是始终固定不变，还是可以通过调节使其保持在不同的设定宽度。
例如，当一对夹爪12之间的间距始终固定不变，即二者保持同步移动，调节其中一个夹爪12靠近或远离主体11时，必然带动另一个夹爪12远离或靠近主体11，使得一对夹爪12的夹持中心随之移动；当一对夹爪12之间的间距能够通过二者分别相对于主体11的移动、分别调节各自到主体11的间距进行调节，那么夹持中心自然也能随意移动，调节范围更大；当一对夹爪12之间的间距能够通过二者分别相对于主体11的移动、分别调节各自到主体11的间距进行调节，但二者之间又弹性张紧时，拍摄设备3夹持在一对夹爪12中，夹爪12的夹持宽度保持不变，调节其中一个夹爪12靠近或远离主体11时，另一个也必然随着远离或靠近主体11，夹持中心也得到调节。如此设置，当拍摄设备3的重心与主体11的中心偏离时，可通过调整夹爪12的夹持中心朝向与偏离方向相反的方向相对于主体11移动，使得夹持在夹爪12上的拍摄设备3的重心相应地朝向靠近主体11的中心的方向移动，缓解拍摄设备3偏重的情况，使拍摄设备3的重心尽量接近主体11的中心，从而起到调节手持云台重心的作用，更有利于夹持拍摄设备3后手持云台的自身平衡，同时合适的重心位置也能降低相应的电机损耗，使电机更轻松的带动云台移动。
本实施例中采用一对夹爪12之间的间距能够通过二者分别相对于主体11的移动、分别调节各自到主体11的间距进行调节，但二者之间又能够弹性张紧，具体地，夹持宽度保持机构为弹性夹持机构1，弹性夹持机构1包括设置于主体11上的容纳腔111，与容纳腔111滑动配合的滑杆112，以及设于滑杆112与容纳腔111之间的弹性偏压件113，弹性偏压件113的弹性偏压力作用于滑杆112，使滑杆112具有缩入容纳腔111的趋势，夹爪 12连接于滑杆112伸出容纳腔111的一端。
每个夹爪12连接有两个平行设置的滑杆112，对应地，主体11上具有两个适于滑杆112滑动的容纳腔111，弹性偏压件113为套设于每个滑杆112上的弹性压簧，容纳腔111的开口处设有直径变小的径向凸台，滑杆112上设有直径变大的径向凸台，弹性压簧位于两个径向凸台之间，其轴向两端分别抵靠在两个径向凸台上，当弹性压簧处于自然状态时，夹爪12位于初始位置，当弹性压簧处于拉伸状态时，夹爪12位于夹持位置，弹性压簧的回复力作用于夹爪12使其具有回复至初始位置的趋势，实现对拍摄设备3的弹性夹持。
调节机构包括驱动夹爪12与主体11相对移动的调节结构，和驱动调节结构的驱动结构。用户通过驱动结构驱动调节结构对夹爪12与主体11的相对位置进行调节，调节更加方便；且驱动结构设置于所述夹爪12的外侧，驱动结构设置在此位置处，设计合理，方便调节，操作驱动结构不受夹爪12移动干涉。本实施例中，驱动结构为手动驱动结构。
具体地，调节结构为螺纹调节结构。螺纹调节结构包括设置于所述主体11上的内螺纹结构，和连接于待调节的所述夹爪12上的螺杆13，所述螺杆13与所述内螺纹结构螺纹配合，带动所述夹爪12朝向靠近或远离所述主体11的方向往复移动，结构简单，操作方便，不易损坏。
驱动结构为固定设置于所述螺杆13端部的调节旋钮14，旋转所述调节旋钮14驱动所述螺杆13与所述内螺纹结构螺纹配合。旋转调节旋钮14旋紧螺杆13，使夹爪12靠近主体11，旋转调节旋钮14旋松螺杆13，使夹爪12远离主体11，螺杆13贯穿所述夹爪12设置，所述调节旋钮14设置于 所述夹爪12的外侧。螺杆13也可以不贯穿夹爪12，螺杆13的端部固定连接调节旋钮14，调节旋钮14的端部抵靠夹爪12的内侧，旋转调节旋钮14推动夹爪12远离主体11，或释放夹爪12靠近主体11。
夹爪12包括固定部121及活动连接于固定部121上的活动部122，固定部121设置于主体11上，活动部122具有靠近主体11的收纳状态和远离主体11的夹持状态。活动部122铰接于固定部121上，活动部122能够朝向或背向夹持中心转动，在收纳状态和夹持状态之间切换。便于缩小夹持机构1体积，方便携带。
本实施例还提供一种手持云台，具体为单轴手持云台，包括手柄2，设置于手柄2上的转动部21，以及设置于转动部21上的上述夹持机构1，通过调整夹持机构1的夹持重心与转动部21的转动中心相适应，降低，避免了由于拍摄设备3的重心偏离手持云台的预设重心区域，使得驱动转动部21转动的驱动机构负载增加，致使设备功耗加大，续航时间缩短，甚至出现过载保护导致云台无法使用的情况。
还包括驱动所述转动部21转动的驱动机构，所述驱动机构为有刷电机22。有刷电机22比无刷电机结构简单，价格便宜，技术和工艺更加成熟可靠。有刷电机22可以为直流有刷电机22。
手持云台的工作过程如下：如图3-4所示，拍摄设备3为镜头处增加了辅助件的手机，拍摄设备3的重心相对于手机自身的重心下移，掰开夹爪12将拍摄设备3夹持于一对夹爪12之间，在弹性夹持机构1的作用下，夹爪12弹性夹紧拍摄设备3，在不受调节机构影响的情况下，此时一对夹爪12对称分布在主体11两侧，导致此时拍摄设备3的重心位于主体11的 中心的下方，主体11的中心与转动部21的转动中心驱动机构的驱动轴心一致，因此拍摄设备3的重心位于转动部21的转动中心、驱动机构的驱动轴心下方，出现重心偏离。此时，如图8所示从左至右，旋转调节旋钮14，旋紧螺杆13，被螺杆13直接推动的夹爪12与主体11之间的距离逐渐减小，由于夹持宽度始终保持与拍摄设备3相匹配，另一个夹爪12发生移动使其与主体11之间的距离逐渐增大，使得一对夹爪12整体相对于手柄2向上移动，夹持中心随之上移，而主体11与手柄2相对固定，也即一对夹爪12的夹持中心相对于主体11的中心上移，带动拍摄设备3的重心上移，更加靠近主体11的中心和转动部21的转动中心驱动机构的驱动轴心，使拍摄设备3的重心与手持云台的预设重心区域更加匹配；反之，若拍摄设备3的重心高于主体11的中心，则反向调节螺杆13，使拍摄设备3的重心下移即可。
作为实施例一的可替换实施方式，驱动结构可以为电动驱动结构，通过按钮操控电机驱动螺杆正反方向转动。
作为实施例一的可替换实施方式，螺纹调节结构可以为螺杆与螺母的配合结构，也可以为丝杠丝母的配合结构，丝杠设置在主体上，夹爪具有内螺纹结构，夹爪通过其内螺纹结构与丝杠螺纹配合，活动设置在丝杠上，转动夹爪使其自身沿丝杠往复移动。
作为实施例一的可替换实施方式，夹爪的活动部还可以为伸缩收纳，固定部上具有适于活动部插入的插入腔，需要夹持时，活动部能够固定在伸出插入腔的位置处，需要收纳时，活动部能够缩入插入腔内，便于收纳。
作为实施例一的可替换实施方式，夹持宽度保持机构还可以为固定连 接在一对夹爪之间的连接杆，连接杆的长度固定不变，连接杆贯穿主体设置，或者设置在主体表面，当一对夹爪的夹持宽度保持在设定宽度时，调节机构调节其中一个夹爪即可带动另一个夹爪移动，从而实现夹持中心的调节；或者连接杆为伸缩杆，配合锁定结构能够将一对夹爪的夹持位置锁定在不同夹持宽度处。
作为实施例一的可替换实施方式，夹持宽度保持机构还可以为作用于一对夹爪中的另一个夹爪上的调节机构，两个调节机构分别作用于两个夹爪上，使两个夹爪到主体之间的间距可以独立的分别调节，那么夹持中心自然也能随意移动，调节范围更大。
作为实施例一的可替换实施方式，手持云台为三轴手持云台。
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。

Claims (14)

  1. 一种手持云台用夹持机构，其特征在于，包括：
    主体(11)；
    夹爪(12)，成对的活动设置于所述主体(11)上，且每个所述夹爪(12)能够沿其夹持方向相对于所述主体(11)往复移动；
    夹持宽度保持机构，设置于所述主体(11)上，用于保持每对所述夹爪(12)的夹持宽度与待夹持的拍摄设备(3)相适应；
    调节机构，设置于所述主体(11)上，用于调节每对所述夹爪(12)中的一个所述夹爪(12)与所述主体(11)在所述夹持方向上之间的间距，用以在保持每对所述夹爪(12)的夹持宽度不变的情况下，调节每对所述夹爪(12)的夹持中心与所述主体(11)的中心的相对位置。
  2. 根据权利要求1所述的夹持机构，其特征在于，所述调节机构包括驱动所述夹爪(12)与所述主体(11)相对移动的调节结构，和驱动所述调节结构的驱动结构。
  3. 根据权利要求2所述的夹持机构，其特征在于，所述驱动结构设置于所述夹爪(12)的外侧。
  4. 根据权利要求1-3任一项所述的夹持机构，其特征在于，所述调节结构为螺纹调节结构。
  5. 根据权利要求4所述的夹持机构，其特征在于，所述螺纹调节结构包 括设置于所述主体(11)上的内螺纹结构，和连接于待调节的所述夹爪(12)上的螺杆(13)，所述螺杆(13)与所述内螺纹结构螺纹配合，带动所述夹爪(12)朝向靠近或远离所述主体(11)的方向往复移动。
  6. 根据权利要求5所述的夹持机构，其特征在于，所述驱动结构为固定设置于所述螺杆(13)端部的调节旋钮(14)，旋转所述调节旋钮(14)驱动所述螺杆(13)与所述内螺纹结构螺纹配合。
  7. 根据权利要求6所述的夹持机构，其特征在于，所述螺杆(13)贯穿所述夹爪(12)设置，所述调节旋钮(14)设置于所述夹爪(12)的外侧。
  8. 根据权利要求1-7任一项所述的夹持机构，其特征在于，所述夹持宽度保持机构为弹性夹持机构(1)。
  9. 根据权利要求8所述的夹持机构，其特征在于，所述弹性夹持机构(1)包括设置于所述主体(11)上的容纳腔(111)，与所述容纳腔(111)滑动配合的滑杆(112)，以及设于所述滑杆(112)与所述容纳腔(111)之间的弹性偏压件(113)，所述弹性偏压件(113)的弹性偏压力作用于所述滑杆(112)，使所述滑杆(112)具有缩入所述容纳腔(111)的趋势，所述夹爪(12)连接于所述滑杆(112)伸出所述容纳腔(111)的一端。
  10. 根据权利要求1-7任一项所述的夹持机构，其特征在于，所述夹爪(12)包括固定部(121)及活动连接于所述固定部(121)上的活动部(122)，所述固定部(121)设置于所述主体(11)上，所述活动部(122)具有靠近所述主体(11)的收纳状态和远离所述主体(11)的夹持状态。
  11. 根据权利要求10所述的夹持机构，其特征在于，所述活动部(122) 铰接于所述固定部(121)上，所述活动部(122)能够朝向或背向所述夹持中心转动，在所述收纳状态和所述夹持状态之间切换。
  12. 一种手持云台，其特征在于，包括手柄(2)，及设置于所述手柄(2)上的如权利要求1-11任一项所述的夹持机构(1)，所述主体(11)设置于所述手柄(2)上。
  13. 根据权利要求12所述的手持云台，其特征在于，所述手柄(2)上设置有能够相对于所述手柄(2)转动的转动部(21)，所述主体(11)固定设置于所述转动部(21)上。
  14. 根据权利要求13所述的手持云台，其特征在于，还包括驱动所述转动部(21)转动的驱动机构，所述驱动机构为有刷电机(22)。
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