CN213018574U - Clutch mechanism and plane moving device for photographic equipment - Google Patents

Abstract

A clutch mechanism is used for a gear transmission mechanism with a self-locking effect, wherein the gear transmission mechanism comprises an input end and an output end sleeved on a first shaft, the clutch mechanism comprises a first gear, a supporting plate, a second gear and a third gear, the first gear is sleeved on the first shaft, and the third gear is sleeved on a third shaft extending parallel to the first shaft. The distance between the first shaft and the third shaft is designed to allow the second gear to engage with the third gear to rotate in the first direction when the second gear is rotated toward the third gear by the driving of the first gear, and to allow the second gear to disengage from the third gear when the gear transmission mechanism stops operating and the third gear is driven to rotate in the first direction by an external force. The clutch mechanism having the above configuration allows the gear transmission mechanism to release self-locking. The invention also relates to a plane moving device with the clutch mechanism for the photographic equipment.

Description

Clutch mechanism and plane moving device for photographic equipment

Technical Field

The utility model relates to a clutching mechanism especially relates to a clutching mechanism for having self-locking effect's gear drive.

Background

The gear transmission mechanism is a common mechanism in mechanical equipment, and particularly, a worm gear-worm mechanism, a planetary reduction gear mechanism, a harmonic reduction gear mechanism, a cycloid gear transmission mechanism and the like are widely applied because the gear transmission mechanism can realize a transmission ratio with a large multiplying power. However, the above-mentioned gear transmission mechanisms with large transmission ratios generally have a self-locking effect, which limits the range of use thereof to some extent. When using a worm-gear transmission, for example, the entire transmission may be damaged if a strong force is used to push the worm gear in the opposite direction.

Disclosure of Invention

In order to overcome the problems, the utility model provides a clutch mechanism for gear drive with self-locking effect. The clutch mechanism allows the gear transmission mechanism to be unlocked by virtue of the primary transmission assembly being disengaged from the secondary transmission assembly when the secondary transmission assembly is pushed in the reverse direction. The utility model also provides a plane mobile device for photographic equipment including above-mentioned clutching mechanism.

The utility model provides a clutch mechanism for having self-locking effect's gear drive, wherein gear drive includes that input and cover establish at the epaxial output of primary shaft relatively rotatably, clutch mechanism includes first gear, backup pad, second gear and third gear. The first gear can be sleeved on the first shaft in a relatively rotating mode and is fixedly connected to the output end. The supporting plate is sleeved on the first shaft in a relatively rotatable manner and is positioned at the end side of the first gear far away from the output end. A second gear is mounted to the support plate on the same side with respect to the first gear by means of a second shaft extending parallel to the first shaft and fixedly mounted to the support plate, the second gear being relatively rotatably sleeved on the second shaft. A third gear is sleeved on a third shaft extending parallel to the first shaft, wherein a distance between the first shaft and the third shaft is designed to allow the second gear to be engaged with the third gear to rotate the third gear in the first direction when the second gear is rotated toward the third gear by the driving of the first gear, and to allow the second gear to be disengaged from the third gear when the gear transmission mechanism stops operating and the third gear is further driven to rotate in the first direction by an external force.

Preferably, a distance between the first shaft and the third shaft is designed to be greater than a sum of a radius of the first gear and a radius of the third gear and smaller than a sum of a radius of the first gear, a radius of the third gear, and a diameter of the second gear.

Preferably, the third gear is relatively rotatably fitted on the third shaft.

Preferably, the clutch mechanism further comprises a fourth gear relatively rotatably sleeved on the third shaft and fixedly coupled to the third gear.

Preferably, the first gear, the second gear and the third gear are each designed as spur gears.

Preferably, the first gear, the second gear and the third gear are all designed as helical gears.

Preferably, the gear transmission mechanism is a worm gear transmission mechanism, wherein a worm is an input end, and a worm wheel is an output end.

The utility model also provides a plane mobile device for photographic equipment, it includes relative first support arm and second support arm, first drive assembly, second drive assembly and the output shaft of arranging. A first drive assembly is disposed at one end of the first support arm, the first support arm being relatively rotatably supported by means of the first drive assembly, the first drive assembly including a first motor, a first gear transmission mechanism driven by the first motor and having a self-locking effect, and a first clutch mechanism having the above-described configuration. A second drive assembly is arranged at the other end of the first support arm, the second support arm being connected at one end to the second drive assembly and being rotatable in one plane relative to the first support arm by means of the second drive assembly, the second drive assembly comprising a second motor, a second gear transmission driven by the second motor and having a self-locking effect, and a second clutch mechanism having the above-described configuration. One shaft end of the output shaft is arranged at the other end of the second supporting arm, and the other shaft end of the output shaft is connected with a photographic apparatus.

Preferably, the first drive assembly is configured to further include a first support base and a first drive shaft, the first support base is disposed on a side surface of the first support arm that deviates from the second support arm, the first drive shaft is coupled to the first support base in a relatively rotatable manner and extends into the first support arm, the first support arm is connected to the first drive shaft in a relatively rotatable manner, a first drive gear is sleeved on a periphery of the first drive shaft in a relatively rotatable manner, and the first drive gear is driven by the first clutch mechanism to rotate so as to drive the first drive shaft to rotate.

Preferably, the first clutch mechanism further comprises a fourth gear, the fourth gear is sleeved on the third shaft in a relatively rotatable manner and is fixedly coupled to the third gear, and the first driving gear is directly meshed with the fourth gear of the first clutch mechanism.

Preferably, the second driving assembly is configured to further include a second supporting base and a second driving shaft, the second supporting base is fixedly mounted to the second supporting arm, the second driving shaft is relatively rotatably coupled to the second supporting base and extends into the first supporting arm to be relatively rotatably connected with the first supporting arm, a second driving gear is sleeved on the outer periphery of the second driving shaft in a relatively non-rotatable manner, and the second driving gear is driven by the second clutch mechanism to rotate so as to drive the second driving shaft to rotate.

Preferably, the first motor and the second motor are connected together.

Preferably, the second clutch mechanism further comprises a fourth gear, the fourth gear is sleeved on the third shaft in a relatively rotatable manner and is fixedly coupled to the third gear, and the second driving gear is directly meshed with the fourth gear of the second clutch mechanism.

Preferably, the first gear transmission mechanism and the second gear transmission mechanism both adopt worm and worm gear transmission mechanisms.

Preferably, the first motor, the first gear transmission mechanism, the first clutch mechanism, the second motor, the second gear transmission mechanism, and the second clutch mechanism are all housed within the first support arm.

Drawings

FIG. 1 is a schematic view of the clutch mechanism from one direction;

FIG. 2 is a schematic view of the second gear in mesh with the third gear;

FIG. 3 is a schematic view of the second gear disengaged from the third gear;

FIG. 4 is a schematic view of the clutch mechanism from another direction;

fig. 5 is an overall schematic view of a planar moving apparatus for photographic equipment according to the present invention;

FIG. 6 is an internal schematic view of the planar motion device with the first support arm removed;

fig. 7 is an enlarged view of the first drive assembly and the second drive assembly.

List of reference numerals

1. A worm; 2. a worm gear; 3. a first shaft; 4. a first gear; 5. a second gear; 6. a support plate; 7. a third gear; 8. a third axis; 9. a fourth gear; A. a first direction; 10. a first support arm; 11. a second support arm; 12. a first drive assembly; 121. a first motor; 122. a first gear transmission mechanism; 123. a first clutch mechanism; 124. a first support base; 125. a first drive shaft; 126. a first drive gear; 13. a second drive assembly; 131. a second motor; 132. a second gear transmission mechanism; 133. a second clutch mechanism; 134. a second support base; 135. a second drive shaft; 136. a second drive gear; 14. a photographic apparatus.

Detailed Description

Referring now to the drawings, illustrative aspects of the disclosed structure will be described in detail. Although the drawings are provided to present embodiments of the invention, the drawings are not necessarily to scale of particular embodiments, and certain features may be exaggerated, minimized, or removed to better illustrate and explain the present disclosure.

Certain directional terms used hereinafter to describe the accompanying drawings should be understood to have their normal meanings and to refer to those directions as they normally relate to when viewing the drawings.

Fig. 1 shows a coupling mechanism according to the invention for a gear mechanism with a self-locking effect. Including but not limited to worm and gear mechanisms, planetary reduction gear mechanisms, harmonic reduction gear mechanisms, and cycloidal gear mechanisms. The transmission mechanisms are provided with power input ends and power output ends. The description is made taking a worm-gear transmission as an example, wherein a worm 1 is an input end, a worm wheel 2 is an output end, the worm 1 is generally directly coupled to a motor shaft of a motor, and the worm wheel 2 is engaged with the worm 1 to rotate under the driving of the worm 1 and can be sleeved on a first shaft 3 in a relatively rotatable manner by means of a bearing.

The clutch mechanism mainly comprises a first gear 4, a second gear 5, a support plate 6 and a third gear 7 sleeved on a third shaft 8. Wherein the first gear 4, the second gear 5 and the support plate 6 may constitute a primary transmission assembly, and the third gear 7 and the third shaft 8 may constitute a secondary transmission assembly.

In particular, as shown in fig. 1, the first gear wheel 4 can also be fitted on the first shaft 3 so as to be rotatable relative thereto, for example by means of bearings. The sides of the first gear 4 and the worm wheel 2 facing each other are fixedly connected together so that the first gear 4 rotates around the first shaft 3 synchronously with the worm wheel 2 under the driving of the worm wheel 2, wherein the first gear 4 and the worm wheel 2 can form a dual gear structure. A support plate 6 is provided at the end of the first gear 4 remote from the worm wheel 2, which support plate 6 is mainly used to support the second gear 5 described in detail below. The support plate 6 is likewise mounted on the first shaft 3 so as to be rotatable relative to it, without any influence on the movement of the first gear wheel 4.

The second gear wheel 5 is mounted on the support plate 6 by means of a not shown second shaft extending parallel with respect to the first shaft 3, wherein the second gear wheel 5 is arranged on the same side of the support plate 6 as the first gear wheel 4 for achieving the meshing between the second gear wheel 5 and the first gear wheel 4. Thus, when the first gear 4 is rotated by the worm wheel 2, the second gear 5 first engaged to the first gear 4 is rotated along with the first gear 4, thereby realizing the revolution of the second gear 5 around the first gear 4. At the same time, the second shaft revolves with the second gear 5 around the first gear 4, and the support plate 6 also rotates around the first shaft.

In addition, although the first gear 4 is shown in the drawings as being disposed vertically below the worm wheel 2, it will be understood by those skilled in the art that the first gear 4 may also be disposed vertically above the worm wheel 2, which may be selected as desired.

The second shaft is fixedly arranged on the support plate 6, while the second gear 5 is relatively rotatably sleeved on the second shaft, for example by means of a bearing, so that the second gear 5 can also rotate around the second shaft when the second gear 5 is rotated under the drive of the first gear 4 to a position where the second shaft cannot be further revolved around the first gear and the support plate cannot be further rotated around the first shaft.

The third gear wheel 7 is journalled on a third shaft 8, which third shaft 8 is likewise designed to extend parallel to the first shaft 3. The distance between the first shaft 3 and the third shaft 8 may be designed such that when the second gear 5 is rotated in the first direction a (counterclockwise direction as viewed from fig. 2) around the first gear 4 in the first direction a around the first gear 4 from the position shown in fig. 1 toward the third gear 7 to the position shown in fig. 2, the second gear 5 can mesh with the third gear 7, thereby driving the third gear 7 to also rotate in the first direction a. Referring to fig. 3, when the worm stops applying the driving force, an external force in the same direction as the first direction a is applied to the third gear 7, and the second gear 5 is disengaged from the third gear 7. Specifically, the distance between the first shaft 3 and the third shaft 8 may be designed to be larger than the sum of the radius of the first gear 4 and the radius of the third gear 7, and smaller than the sum of the radius of the first gear 4, the radius of the third gear 7, and the diameter of the second gear 5.

The following brief description of the working principle of the clutch mechanism according to the present invention with reference to fig. 1 to 3 is as follows: without releasing the self-locking of the worm gear 1, i.e. in the case of normal operation of the transmission, the worm 1 drives the worm wheel 2 to rotate relative to the first shaft 3, the worm wheel 2 in turn drives the first gear 4 to rotate relative to the first shaft 3 and the first gear 4 in turn drives the second gear 5 to rotate in the first direction a towards the third gear 7 as shown in fig. 2 so that the second gear 5 is in contact with the third gear 7 until the two are meshed. After the second gear 5 is meshed with the third gear 7, in view of the fact that the second gear 5 cannot continue to revolve with respect to the first gear 4 to pass through the gap between the first gear 4 and the third gear 7, the second gear 5 will be pressed together by both the first gear 4 and the third gear 7 to the position shown in fig. 2 and forced to rotate around the second shaft, thereby bringing the third gear 7 into rotation, which achieves the normal deceleration function of the entire transmission mechanism.

When the worm gear-worm transmission is required to release the self-locking, the worm first stops driving the worm wheel, a force in the first direction a as shown in fig. 3 can be applied to the third gear 7 by means of an external force, and the second gear 5 will also be subjected to an urging force in the first direction and thus be disengaged from the third gear 7 in view of the engagement of the second gear 5 with the third gear 7. Therefore, the reverse force applied to the secondary transmission assembly by an operator cannot be continuously transmitted to the primary transmission assembly, the unlocking function is realized, and the transmission mechanism can continuously run without the influence of self-locking between the worm and the worm.

In addition, although not shown, it will be appreciated by those skilled in the art that when the worm 1 drives the worm wheel 2 in reverse, the second gear 5 may be rotated, for example, clockwise from the current position in fig. 2 rearward under the drive of the first gear 4, or along arrow B from the angle shown in the current fig. 4, to mesh with another section of the third gear 7 to drive the third gear 7 in reverse.

In addition, although not shown, it is also conceivable to add a fifth gear (not shown) having a similar specific configuration to the second gear 5 on the support plate 6, but disposed separately from the second gear 5 on the outer periphery of the first gear 4, i.e., the fifth gear is not engaged with the second gear 5 but is engaged with the first gear 4 to similarly revolve around the gear 4 under the driving of the gear 4. So that when the worm 1 is reversed, the fifth gear can be rapidly engaged with the third gear after the second gear 5 is disengaged from the third gear 7, thereby reducing the time for reverse engagement. The arrangement position between the fifth gear and the second gear with respect to the first gear should be such that only one of the fifth gear and the second gear is engaged with the third gear 7 when the transmission is in operation, but both are disengaged from the third gear 7 when the transmission is stopped.

The object to be driven can be in direct meshing connection with the third gear. The third gear wheel 7 here can be fitted both in a rotationally fixed manner and in a relatively rotatable manner on the third shaft 8, depending on the desired final power output. The clutch mechanism herein may further comprise a fourth gear 9 when the third gear 7 is relatively rotatably fitted on the third shaft 8. The fourth gear 9 is sleeved on the third shaft 8 and is fixedly connected to one side surface of the third gear 7, and the third gear 7 and the fourth gear 9 can also form a duplicate gear structure. At this time, the object to be driven can also be in meshed connection with the fourth gear.

In addition, although the first gear 4, the second gear 5, and the third gear 7 herein are each designed in the form of a spur gear, they may also be designed in the form of a helical gear as long as the modules of these three gears are equal to enable meshing with each other.

As can be seen from the figure, the clutch mechanism having the above configuration also has the following advantages:

(1) under the condition of not driving the worm, the secondary transmission component is not meshed with the primary transmission component, so that the secondary transmission component can move freely and does not interfere with the original worm and gear transmission mechanism.

(2) This arrangement is suitable for both forward and reverse rotation of the worm.

(3) Compared with a clutch using an electromagnetic effect, the device has the advantages of simple structure, no need of power supply and low cost.

(4) The device occupies a small space and can be directly installed and used with a worm gear mechanism in the existing instrument.

(5) The primary drive assembly herein is capable of being easily engaged with the secondary drive assembly to transmit power without requiring the operator to provide additional motion to assist in the engagement.

In addition, although a worm-and-wheel gear transmission is described herein as an example, those skilled in the art will appreciate that other gear transmissions, such as a planetary reduction gear mechanism, a harmonic reduction gear mechanism, and a cycloidal gear mechanism, also have an input end and an output end, and that the first gear 4 may be similarly coupled to the output end of the corresponding gear transmission for rotation therewith.

Based on the clutch mechanism, the utility model also provides a plane mobile device for photographic equipment. Wherein the photographic equipment may employ, but is not limited to, a camera (as shown in fig. 5 and 6), a cell phone, or a video camera. Referring to fig. 5 to 7 in combination, the plane moving device is configured to include a first support arm 10 and a second support arm 11 which are disposed opposite to each other and are rotatable with respect to each other. One end of the first support arm 10 is rotatably supported on a table top or a floor, one end of the second support arm 11 is rotatably connected to the other end of the first support arm 10, and the photographing apparatus is mounted on the other end of the second support arm 11.

In particular, see in particular fig. 6, wherein the first support arm 10 is omitted for better illustration. The plane moving device includes a first driving assembly 12 and a second driving assembly 13, wherein the first driving assembly 12 is disposed at one end of the first support arm 10, and the second driving assembly 13 is disposed at the other end of the first support arm 10. The first support arm 10 is relatively rotatably supported with respect to the table top or floor by means of the first drive assembly 12.

The first drive assembly 12 is configured to comprise a first support base 124 and a first drive shaft 125, the first support base 124 being mounted to the side of the first support arm 10 facing away from the second support arm 11, i.e. a portion thereof may protrude outside the first support arm 10 as shown in fig. 5 to support the first support arm 10 and thereby the entire planar motion device on a table or floor. A first drive shaft 125 is relatively rotatably coupled to the first support base 124 and extends into the first support arm 10. For example, the first driving shaft 125 can be relatively rotatably inserted into a receiving hole formed in the first support base 124 from the first support arm 10. The first support arm 10 is non-rotatably coupled to the first drive shaft 125, such that when the first drive shaft 125 is driven by an external force to rotate with respect to the first support base 124, the first support arm 10 also rotates with the first drive shaft 125 with respect to the first support base 124.

In order to drive the first driving shaft 125 to rotate relative to the first supporting base 124, the first driving assembly 12 further includes a first motor 121, a first gear mechanism 122 (described in detail above, and illustrated as a worm gear mechanism in fig. 5 to 7) driven by the first motor 121 and having a self-locking effect, and a first clutch mechanism 123 having the above-described configuration. Specifically, referring to fig. 1 and fig. 7 in combination, the worm of the first gear transmission mechanism 122 is driven by the first motor 121 to rotate, wherein the matching driving relationship between the worm wheel and the worm and the primary transmission assembly and the secondary transmission assembly is described in detail above and is not described herein again.

A first driving gear 126 is fitted onto an outer peripheral surface of the first driving shaft 125 in a non-rotatable manner, and the first driving gear 126 is rotatable by the first clutch mechanism 123, for example, by meshing with a third gear of the first clutch mechanism 123. In addition, when the first clutch mechanism 123 includes the fourth gear described above, the first drive gear 126 may also be directly meshed with the fourth gear.

The second drive assembly 13 is designed to drive the second support arm 11 in rotation relative to the first support arm 10 in one plane. The second drive assembly 13 comprises a second support base 134 and a second drive shaft 135, wherein the second support base 134 is fixedly mounted to the second support arm 11, for example on the side of the second support arm 11 facing the first support arm 10, as shown in fig. 7. The second drive shaft 135 can be coupled relatively rotatably to this second support base 134, for example by means of bearings, for example inserted into a receiving hole provided in the second support base 134 and extending in a direction away from the second support arm 11, i.e. into the first support arm 10.

The first support arm 10 may be directly or indirectly non-rotatably connected to the second drive shaft 135. As an example, the first support arm 10 is directly connected to the second driving shaft 135 at the other end thereof. As another example, connecting the first motor 121 and a second motor 131, which will be described later, together is equivalent to connecting the first drive assembly 12 and the second drive assembly 13 together, since the first support arm 10 has been connected at one end thereof to the first drive shaft 125, which is also equivalent to being indirectly coupled to the second drive shaft 135.

Thereby, when the second drive shaft 125 is turned with respect to the second support base 134, a rotation of the second support arm 11 with respect to the first support arm 10 will be achieved. In order to drive the second driving shaft 125 to rotate relative to the second supporting base 134, the second driving assembly 13 further includes a second motor 131, a second gear transmission 132 (illustrated as a worm gear transmission) driven by the first motor 121 and having a self-locking effect, and a second clutch mechanism 133 having the above-mentioned configuration. Specifically, referring to fig. 1 and 7 in combination, the worm of the second gear transmission mechanism 132 is driven by the second motor 131 to rotate, and similarly, the matching driving relationship between the worm gear and the first-stage transmission assembly and the second-stage transmission assembly is described in detail above and is not described again here.

A second driving gear 136 is rotatably sleeved on the outer peripheral surface of the second driving shaft 135, and the second driving gear 136 is driven by the second clutch mechanism 133 to rotate, for example, to mesh with a third gear of the second clutch mechanism 133, so as to drive the second driving shaft 135 to rotate relative to the second supporting base. In addition, when the second clutch mechanism 133 includes the fourth gear described above, the second driving gear 136 may also be directly meshed with the fourth gear.

As shown, the first motor, the first gear mechanism, the first clutch mechanism, the second motor, the second gear mechanism and the second clutch mechanism are all accommodated in the first support arm for compact design.

At the other end of the second support arm 11, there is also provided an output shaft (not shown) having one axial end connected to the second support arm 11 and the other axial end to which photographic equipment, such as a camera, is to be connected.

Additionally, it should be understood by those skilled in the art that the configuration of the first drive assembly 12 and the second drive assembly 13 (the components other than the first support base and the second support base) need not be identical, for example the first gear drive 122 may be different from the second gear drive 132, such as the first drive assembly 12 may employ a worm and gear and the second drive assembly 13 may employ a planetary reduction gear, and/or the specific configuration of the first clutch 123 and the second clutch may be different, such as the first clutch 123 including a fourth gear and the second clutch not including a fourth gear, with the third gear directly meshing with the second drive gear 136.

The plane moving device for the photographic apparatus having the above configuration can be smoothly operated without being affected by the self-locking effect of the gear transmission mechanism. When the self-locking mechanism is used, the self-locking effect of the first gear transmission mechanism and the second gear transmission mechanism can be relieved only by driving the first driving shaft and the second driving shaft through external force. The first and second drive shafts may be manually driven directly by a user in use.

Claims (15)

1. A clutch mechanism and designed for a gear transmission with a self-locking effect, wherein the gear transmission comprises an input and an output which is fitted on a first shaft (3) in a relatively rotatable manner, characterized in that the clutch mechanism comprises:

a first gear (4) relatively rotatably fitted over the first shaft (3) and fixedly coupled to the output end;

a support plate (6) which is sleeved on the first shaft (3) in a relatively rotatable manner and is positioned at the end side of the first gear (4) far away from the output end;

a second gear wheel (5) mounted to the support plate (6) for meshing with the first gear wheel (4) by means of a second shaft on the same side with respect to the first gear wheel (4), wherein the second shaft extends parallel to the first shaft and is fixedly mounted to the support plate (6), the second gear wheel (5) being fitted on the second shaft in a relatively rotatable manner;

a third gear (7) being sleeved on a third shaft (8) extending parallel to the first shaft (3), wherein a distance between the first shaft (3) and the third shaft (8) is designed to allow the second gear (5) to engage with the third gear (7) to rotate the third gear (7) in a first direction when the second gear (5) is rotated toward the third gear (7) under the drive of the first gear (4), and to allow the second gear (5) to disengage from the third gear (7) when the gear transmission stops operating and the third gear (7) is further driven to rotate in the first direction by means of an external force.

2. A clutch mechanism according to claim 1, characterized in that the distance between the first shaft and the third shaft is designed to be greater than the sum of the radius of the first gear and the radius of the third gear and smaller than the sum of the radius of the first gear, the radius of the third gear and the diameter of the second gear.

3. A clutch mechanism according to claim 2, characterised in that the third gear is relatively rotatably mounted on the third shaft.

4. A clutch mechanism according to claim 3, further comprising a fourth gear relatively rotatably disposed about said third shaft and fixedly coupled to said third gear.

5. A clutch mechanism according to claim 1, characterised in that the first, second and third gear wheels are designed as spur gears.

6. A clutch mechanism according to claim 1, characterised in that the first, second and third gear wheels are designed as helical gears.

7. A clutch mechanism according to any one of claims 1 to 6, characterised in that the gear drive is a worm gear drive, wherein the worm is the input and the worm gear is the output.

8. A planar motion device for photographic equipment (14), comprising:

a first support arm (10) and a second support arm (11) arranged opposite each other;

a first drive assembly (12) arranged at one end of the first support arm (10), the first support arm (10) being relatively rotatably supported by means of the first drive assembly (12), the first drive assembly (12) comprising a first motor (121), a first clutch mechanism (123) and a first gear transmission (122) driven by the first motor (121) and having a self-locking effect, wherein the first clutch mechanism (123) is designed as a clutch mechanism according to claim 1;

-a second drive assembly (13) arranged at the other end of the first support arm (10), the second support arm (11) being connected at one end to the second drive assembly (13) and being rotatable in one plane relative to the first support arm (10) by means of the second drive assembly (13), the second drive assembly (13) comprising a second electric motor (131), a second clutch mechanism (133) and a second gear transmission (132) driven by the second electric motor (131) and having a self-locking effect, wherein the second clutch mechanism (133) is designed as a clutch mechanism according to claim 1;

and one shaft end of the output shaft is arranged at the other end of the second supporting arm (11), and the other shaft end of the output shaft is connected with a photographic apparatus (14).

9. The planar moving apparatus for photographic equipment as claimed in claim 8, wherein the first driving assembly is configured to further include a first supporting base and a first driving shaft, the first supporting base is mounted to a side of the first supporting arm facing away from the second supporting arm and partially protrudes from the first supporting arm, the first driving shaft is relatively rotatably coupled to the first supporting base and protrudes into the first supporting arm, the first supporting arm is relatively rotatably connected to the first driving shaft, a first driving gear is relatively rotatably sleeved on an outer periphery of the first driving shaft, and the first driving gear is rotated by the first clutch mechanism.

10. The apparatus of claim 9, wherein the first clutch further comprises a fourth gear rotatably mounted on the third shaft and fixedly coupled to the third gear, the first driving gear directly engaging the fourth gear of the first clutch.

11. The plane moving apparatus for photographic equipment as claimed in claim 8 or 9, wherein the second driving assembly is configured to further include a second support base fixedly mounted to the second support arm, and a second driving shaft relatively rotatably coupled to the second support base and extending into the first support arm to be relatively rotatably connected with the first support arm, and a second driving gear is non-rotatably sleeved on an outer periphery of the second driving shaft, and is rotated by the driving of the second clutch mechanism.

12. The apparatus of claim 11, wherein said first motor and said second motor are coupled together.

13. The apparatus of claim 12, wherein the second clutch mechanism further comprises a fourth gear rotatably mounted on the third shaft and fixedly coupled to the third gear, the second driving gear directly engaging the fourth gear of the second clutch mechanism.

14. The apparatus of claim 8, wherein the first gear and the second gear are worm gears.

15. The planar moving apparatus as claimed in claim 8, wherein said first motor, said first gear transmission mechanism, said first clutch mechanism, said second motor, said second gear transmission mechanism and said second clutch mechanism are accommodated in said first supporting arm.

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