CN117605923A - Tripod head every single move drive mechanism and tripod head - Google Patents

Tripod head every single move drive mechanism and tripod head Download PDF

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Publication number
CN117605923A
CN117605923A CN202410062589.1A CN202410062589A CN117605923A CN 117605923 A CN117605923 A CN 117605923A CN 202410062589 A CN202410062589 A CN 202410062589A CN 117605923 A CN117605923 A CN 117605923A
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CN
China
Prior art keywords
arc
pan
motor
driving mechanism
mobile terminal
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202410062589.1A
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Chinese (zh)
Inventor
姜浩
刘家豪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ruimo Innovation Technology Chengdu Co ltd
Original Assignee
Ruimo Innovation Technology Chengdu Co ltd
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 Ruimo Innovation Technology Chengdu Co ltd filed Critical Ruimo Innovation Technology Chengdu Co ltd
Priority to CN202410062589.1A priority Critical patent/CN117605923A/en
Publication of CN117605923A publication Critical patent/CN117605923A/en
Pending legal-status Critical Current

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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
    • F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Accessories Of Cameras (AREA)

Abstract

The invention discloses a cradle head pitching transmission mechanism and a cradle head, wherein the cradle head pitching transmission mechanism comprises a motor, a driving mechanism and an arc-shaped driven mechanism, and the output end of the motor is connected with the driving mechanism to drive the driving mechanism to rotate; the arc-shaped driven mechanism is connected with the driving mechanism and is driven by the driving mechanism to rotate; the middle part of arc driven mechanism is provided with the terminal mount, the centre of a circle of arc driven mechanism is located mobile terminal. The cradle head pitching transmission mechanism provided by the invention can realize the effects of reducing the burden of a motor, using a motor with smaller size and improving the stability of product use.

Description

Tripod head every single move drive mechanism and tripod head
Technical Field
The invention relates to the technical field of transmission mechanisms, in particular to a cradle head pitching transmission mechanism and a cradle head.
Background
As shown in fig. 1, 2 and 6, most of the products are designed below the mobile phone 40 by using an output shaft capable of rotating in pitch, that is, the rotation center O of the driven gear 20 is located below the mobile phone 40, and the mobile phone 40 is fixed on the driven gear 20 through the fixing frame 30. As shown in fig. 2, when the mobile phone 40 rotates by 30 °, the center of gravity of the mobile phone 40 is shifted, and if the mobile phone is to be controlled to pitch and swing stably, the driving gear 10 is driven by the motor to drive the driven gear 20 to amplify the motor moment, so as to overcome the mobile phone gravitational moment L1, and thus the mobile phone 40 is required to pitch and swing. However, this solution has the following disadvantages:
1. the burden on the motor is relatively large, and certain requirements are set for the type selection of the motor; because the gravity center of the mobile terminal and the rotation center of the output end are large in vertical shooting, the moment arm of the whole vertical shooting is long, so that the gravity moment of the mobile terminal is increased, the burden on a motor is further increased, and the requirements on the size, the power consumption and the like of the motor are limited;
2. the size of the whole product is not friendly, the large load moment means that the output moment of the motor is large enough, the size of the motor is also large, and the larger the size of the motor is, the larger the force of the motor is, so that the size of the whole product is correspondingly increased, and the whole product is bulky and inconvenient to carry;
3. the product cost is increased, if the heavy moment of the mobile terminal is larger, the output moment of the motor is also larger, if the stepping motor with larger selection but poor performance is adopted, the product can generate noise and vibration, and the rotating smoothness and stability can be reduced; if the brushless motor with smaller selection force but better performance is selected, a corresponding reduction gearbox mechanism is needed to be matched with the brushless motor, so that additional cost is increased;
4. the stability in use of product is poor, if the angle range is too big and the speed is very fast when mobile terminal every single move rotates, can lead to rocking because the skew of focus to the video picture that lets shooing appears shaking, is not smooth.
Therefore, how to reduce the burden of the motor to use a smaller-sized motor and improve the stability of the product in use is a technical problem that we need to solve.
Disclosure of Invention
The invention aims to provide a cradle head pitching transmission mechanism and a cradle head, which can reduce the burden of a motor, use a smaller-sized motor and improve the use stability of a product.
To achieve the purpose, the invention adopts the following technical scheme:
in one aspect, a pan-tilt transmission mechanism is provided, the pan-tilt transmission mechanism comprises a motor, a driving mechanism and an arc driven mechanism, and the output end of the motor is connected with the driving mechanism to drive the driving mechanism to rotate; the arc-shaped driven mechanism is connected with the driving mechanism and is driven by the driving mechanism to rotate; the middle part of arc driven mechanism is provided with the terminal mount, the centre of a circle of arc driven mechanism is located mobile terminal.
In one embodiment, the terminal holder is disposed intermediate the arcuate follower.
In one embodiment, the outer surface of the arc-shaped driven mechanism and the outer surface of the driving mechanism are tooth surfaces, and the arc-shaped driven mechanism is meshed with the driving mechanism.
In one embodiment, the outer surface of the arc-shaped driven mechanism and the outer surface of the driving mechanism are provided with friction pads.
In one embodiment, the outer surface of the arc-shaped driven mechanism and the outer surface of the driving mechanism are externally connected with a belt.
In one embodiment, the terminal fixing frame is two clamping plates, and the two clamping plates are respectively and movably fixed on the arc-shaped driven mechanism.
In one embodiment, the terminal fixing frame is two clamping plates, one clamping plate is fixed on the arc-shaped driven mechanism, and the other clamping plate is movably fixed on the arc-shaped driven mechanism.
In one embodiment, the center of the arc-shaped driven mechanism is at the middle or lower part of the mobile terminal.
In one embodiment, the center of the circle of the arc-shaped driven mechanism coincides with the center of gravity of the mobile terminal.
In another aspect, a pan-tilt is provided, the pan-tilt comprising a pan-tilt pitch drive mechanism as described above.
The invention has at least the following beneficial effects:
according to the cradle head pitching transmission mechanism provided by the invention, the output end of the motor is connected with the driving mechanism to drive the driving mechanism to rotate; the arc-shaped driven mechanism is connected with the driving mechanism and is driven by the driving mechanism to rotate; a terminal fixing frame is arranged in the middle of the arc-shaped driven mechanism, and the circle center of the arc-shaped driven mechanism is positioned on the mobile terminal; the distance between the rotation center of the motor output end and the gravity center of the load is reduced by the transmission mode of the arc-shaped wheel, so that the motor driving load is reduced, and a more stable pitching transmission structure is formed. The cradle head pitching transmission mechanism provided by the invention can achieve the effects of reducing the burden of a motor, using a motor with smaller size and improving the stability of product use.
Drawings
Fig. 1 is a schematic structural diagram of a pan/tilt transmission mechanism in the prior art.
Fig. 2 is a schematic diagram of a pan/tilt transmission mechanism in the prior art.
Fig. 3 is a schematic diagram of a split structure of a pan-tilt transmission mechanism according to an embodiment of the present invention.
Fig. 4 is a schematic cross-sectional structure of a pan-tilt transmission mechanism according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a pan-tilt transmission mechanism according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of an operating state of a pan/tilt transmission mechanism in the prior art.
Fig. 7 is a schematic diagram of a working state of a pan-tilt transmission mechanism according to an embodiment of the present invention. Fig. 8 is a schematic structural diagram of another pan/tilt transmission mechanism according to an embodiment of the present invention.
Reference numerals illustrate:
a drive gear 10; a driven gear 20; a fixing frame 30; a mobile phone 40; an active mechanism 1; an arc-shaped driven mechanism 2; a terminal holder 3; a mobile terminal 4.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It should be noted that when a portion is referred to as being "fixed to" another portion, it may be directly on the other portion or there may be a portion in the middle. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The orientation in the present embodiment is described with reference to fig. 3.
Referring to fig. 3-5 and 7, the present embodiment provides a pan-tilt transmission mechanism, which includes a motor, a driving mechanism 1 and an arc driven mechanism 2, wherein an output end of the motor is connected with the driving mechanism 1 to drive the driving mechanism 1 to rotate; the arc-shaped driven mechanism 2 is connected with the driving mechanism 1 and is driven by the driving mechanism 1 to rotate; the middle part of arc follower 2 is provided with terminal mount 3, the centre of a circle O of arc follower 2 is located mobile terminal 4. In this embodiment, because the terminal fixing frame 3 is disposed in the middle of the arc-shaped driven mechanism 2, when the mobile terminal 4 is fixed on the terminal fixing frame 3, the center O of the arc-shaped driven mechanism 2 will be located above the mobile terminal 4, so as to achieve that the rotation center of the pan-tilt transmission mechanism (i.e. the center O of the arc-shaped driven mechanism 2) is as close to the center P of gravity of the mobile terminal 4 as possible, thereby reducing the burden of the motor. According to the cradle head pitching transmission mechanism provided by the embodiment of the invention, the distance between the rotation center of the output end of the motor and the gravity center of the load is reduced by the transmission mode of the arc wheel, so that the motor driving load is reduced, a more stable pitching transmission structure is formed, and the effects of reducing the motor load, using a smaller-sized motor and improving the use stability of a product can be achieved.
In this embodiment, as shown in fig. 3 to 5, the terminal fixing frame 3 is used for fixing the mobile terminal 4, when the mobile terminal 4 is fixed on the terminal fixing frame 3, the circle center O of the arc-shaped driven mechanism 2 is located on the mobile terminal 4, and the circle center O of the arc-shaped driven mechanism 2 is located on the mobile terminal 4, so that the moment arm of the motor can be reduced or even no moment arm exists. As a preferred embodiment, the center O of the arc-shaped follower 2 is located at the middle or middle lower part of the mobile terminal 4, in practice, the center O of the arc-shaped follower 2 is located at the middle or middle lower part of the mobile terminal 4, including the center O coinciding with the center of gravity of the mobile terminal 4, or located at the middle or middle lower part of the center line of the mobile terminal 4 in the vertical direction (not coinciding with the center of gravity of the mobile terminal 4), or located at the middle or middle lower part of the mobile terminal 4 (not located at the center line of the mobile terminal 4) only, so that the size of the arc-shaped follower 2 is within a smaller range and the force arm L2 is also within a smaller range. In this embodiment, when the center O of the arc-shaped driven mechanism 2 deviates from the center of gravity P of the mobile terminal, as shown in fig. 5, a moment arm L2 is generated, but the moment arm L2 is much smaller than the moment arm L1 in fig. 2 in the prior art, which also greatly reduces the burden on the motor compared with the prior art; therefore, the embodiment provides a pan-tilt transmission mechanism, the circle center O of the arc-shaped driven mechanism 2 of which is positioned on the mobile terminal 4, which can greatly reduce the burden of a motor, thereby realizing lower cost, smaller size and more stable driving. As a preferred embodiment, when the center O of the arc-shaped driven mechanism 2 coincides with the center of gravity P of the mobile terminal 4, that is, when the center O of the arc-shaped driven mechanism 2 coincides with the center of gravity P of the mobile terminal, as shown in fig. 3 and 4, the motor has no moment arm, and the load of the mobile terminal on the motor is minimal.
In the actual use process, as shown in fig. 6 and 7, a mobile terminal is taken as a mobile phone for illustration (in the actual application, the mobile terminal can also be a single-lens reflex camera, a micro lens, a flat plate and the like), and when the mobile phone rotates from 30 degrees to-30 degrees, as shown in fig. 6, for a cradle head pitching transmission mechanism in the prior art, the change distance PP' of the center of gravity of the mobile phone is about 80mm, and when the mobile phone moves in pitching, the center of gravity of the mobile phone is too large, so that the cradle head pitching transmission mechanism is easy to topple, and can be used only by matching with a tripod with a proper specification; for the cradle head pitching transmission mechanism provided by the embodiment, as shown in fig. 7, the center of gravity change distance PP' of the mobile phone is about 10mm, compared with 80mm of the prior art, the center of gravity position change of the mobile phone is smaller, and when the mobile phone moves in a pitching mode, the cradle head pitching transmission mechanism provided by the embodiment of the invention has better self stability, avoids the head weight and the foot weight caused by the rotation center below the mobile terminal, ensures that pitching transmission is more stable and smooth, and improves the use stability of products.
In some embodiments, as shown in fig. 3 to 5 and 7 to 8, the terminal fixing frame 3 is disposed in the middle of the arc-shaped driven mechanism 2, so that when the mobile terminal 4 is fixed on the terminal fixing frame 3, the center O of the arc-shaped driven mechanism 2 can be more easily located on the mobile terminal 4, and thus, in the use process, the arm of force of the motor is reduced.
As a preferred embodiment, as shown in fig. 8, the outer surface of the arc-shaped driven mechanism 2 and the outer surface of the driving mechanism 1 are both tooth surfaces, and the arc-shaped driven mechanism 2 is meshed with the driving mechanism 1, so that the arc-shaped driven mechanism 2 is more conveniently controlled, and the accurate control of the pitching angle of the mobile terminal is realized.
In some embodiments, friction pads are disposed on the outer surface of the arc-shaped driven mechanism 2 and the outer surface of the driving mechanism 1, and the driving mechanism 1 can drive the arc-shaped driven mechanism 2 to rotate by using the friction force between the friction pads, so as to control the pitching angle of the mobile terminal.
In some embodiments, the outer surface of the arc-shaped driven mechanism 2 and the outer surface of the driving mechanism 1 are externally connected with belts, and the control of the arc-shaped driven mechanism 2 is realized through the friction force of the belts.
In some embodiments, the terminal fixing frame 3 is two clamping plates, and the two clamping plates are respectively and movably fixed on the arc-shaped driven mechanism 2, so that the mobile terminal can be flexibly adapted to mobile terminals with all sizes.
In some embodiments, the terminal fixing frame 3 is two clamping plates, one clamping plate is fixed on the arc-shaped driven mechanism 2, the other clamping plate is movably fixed on the arc-shaped driven mechanism 2, and the design is more convenient for the mobile terminal with small change of the dimension thickness, and only one side clamping plate needs to be adjusted when the mobile terminal with different thickness is replaced.
According to the cradle head pitching transmission mechanism provided by the embodiment of the invention, the output end of the motor is connected with the driving mechanism to drive the driving mechanism to rotate; the arc-shaped driven mechanism is connected with the driving mechanism and is driven by the driving mechanism to rotate; the center of the arc-shaped driven mechanism is positioned on the mobile terminal, and the rotation center of the moment output end is upwards moved and adjusted to be close to the center of gravity of the mobile terminal, so that the moment arm of the motor is reduced, the load of the motor output is lightened, the model selection of the motor can be biased to smaller size, lower cost and lower power consumption, and the size, cost and power consumption of the product are further reduced; the device also avoids the heavy head and light foot caused by the rotation center below the mobile terminal, ensures that pitching transmission is more stable and smooth, and improves the use stability of products.
The embodiment of the invention also provides a cradle head, which comprises the cradle head pitching transmission mechanism provided by the embodiment of the invention. The cradle head provided by the embodiment has the advantages of smaller and compact integral design, low manufacturing cost and low power consumption of the motor, and the cradle head is also prevented from being light in weight and feet caused by the fact that the rotation center is arranged below the mobile terminal, so that pitching transmission of the cradle head is stable and smooth, and the use stability of the cradle head is improved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (10)

1. The cradle head pitching transmission mechanism is characterized by comprising a motor, a driving mechanism (1) and an arc driven mechanism (2), wherein the output end of the motor is connected with the driving mechanism (1) to drive the driving mechanism (1) to rotate; the arc-shaped driven mechanism (2) is connected with the driving mechanism (1) and is driven by the driving mechanism (1) to rotate; the middle part of arc driven mechanism (2) is provided with terminal mount (3), the centre of a circle of arc driven mechanism (2) is located mobile terminal (4).
2. Pan-tilt transmission according to claim 1, characterized in that the terminal holder (3) is arranged in the middle of the arc-shaped driven mechanism (2).
3. The pan-tilt transmission mechanism according to claim 1, wherein the outer surface of the arc-shaped driven mechanism (2) and the outer surface of the driving mechanism (1) are both tooth surfaces, and the arc-shaped driven mechanism (2) is meshed with the driving mechanism (1).
4. A pan-tilt transmission according to claim 3, characterized in that the outer surface of the arc-shaped driven mechanism (2) and the outer surface of the driving mechanism (1) are both provided with friction pads.
5. The pan-tilt transmission mechanism according to claim 1, wherein the outer surface of the arc-shaped driven mechanism (2) and the outer surface of the driving mechanism (1) are externally connected with a belt.
6. The pan-tilt transmission mechanism according to claim 1, wherein the terminal fixing frame (3) is two clamping plates, and the two clamping plates are respectively and movably fixed on the arc-shaped driven mechanism (2).
7. The pan-tilt transmission mechanism according to claim 1, wherein the terminal fixing frame (3) is two clamping plates, one clamping plate is fixed on the arc-shaped driven mechanism (2), and the other clamping plate is movably fixed on the arc-shaped driven mechanism (2).
8. Pan-tilt transmission according to claim 1, characterized in that the centre of the arc-shaped follower means (2) is in the middle or in the lower middle of the mobile terminal (4).
9. Pan-tilt transmission according to claim 1, characterized in that the centre of the arc-shaped follower means (2) coincides with the centre of gravity of the mobile terminal (4).
10. A pan and tilt head comprising a pan and tilt drive mechanism according to any one of claims 1 to 9.
CN202410062589.1A 2024-01-16 2024-01-16 Tripod head every single move drive mechanism and tripod head Pending CN117605923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410062589.1A CN117605923A (en) 2024-01-16 2024-01-16 Tripod head every single move drive mechanism and tripod head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410062589.1A CN117605923A (en) 2024-01-16 2024-01-16 Tripod head every single move drive mechanism and tripod head

Publications (1)

Publication Number Publication Date
CN117605923A true CN117605923A (en) 2024-02-27

Family

ID=89948301

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202410062589.1A Pending CN117605923A (en) 2024-01-16 2024-01-16 Tripod head every single move drive mechanism and tripod head

Country Status (1)

Country Link
CN (1) CN117605923A (en)

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