Rotating mechanism of a shooting platform

Abstract

The utility model discloses a kind of rotating mechanism of shooting platform, including central shaft, rotatable frame is assembled with central shaft rotation cooperation on central shaft, base is fixed on rotatable frame, drive device is provided on base, fixed transmission ring and connecting ring are provided with the outer sleeve of central shaft, the bottom of central shaft is provided with end cover, end cover is fixedly pulled down central shaft, drive device is connected with transmission ring transmission;When connecting ring is connected with central shaft transmission, it is electric rotating state, when connecting ring is separated from central shaft cooperation, it is manual rotating state;First ball bearing and second ball bearing are arranged between the middle part of central shaft and base, third ball bearing is arranged between central shaft and transmission ring, fourth ball bearing is arranged between central shaft and connecting ring.The utility model has the advantages of: reasonable structure, with electric function and manual function, can satisfy the various needs of shooting, the verticality of central shaft is guaranteed by four bearing assembly structure.

Description

Technical Field

[0001] This utility model relates to the field of shooting platform manufacturing technology, specifically a rotating mechanism for a shooting platform. Background Technology

[0002] With the development of e-commerce and the advancement of photography and videography equipment, in order to better showcase products, 360° shooting of items is often required. If this is done by the photographer walking around the item to complete the 360° shot, it is not only labor-intensive, but also difficult for the photographer to maintain consistency in the shooting height each time, thus compromising the uniformity of the entire set of images. Traditional rotating shooting platforms are manually rotated; however, manual rotation makes it difficult to guarantee a uniform rotation speed.

[0003] Existing patent application CN202122947239.8, entitled "A Steady-Fixed Rotating Shooting Platform," discloses a shooting platform comprising: a supporting stage, a supporting base, a supporting spindle, a rotating shooting bracket, a bracket support component, and a drive assembly; the supporting stage and the supporting base are connected via the supporting spindle; the rotating shooting bracket includes a first connecting end and a second connecting end; the first connecting end is used to connect and mount shooting equipment; the second connecting end of the rotating shooting bracket is movably connected to the bracket support component; the bracket support component is connected to the supporting base; and the drive assembly is used to drive the rotating shooting... The bracket rotates around the supporting stage. It is driven by a drive component to rotate the shooting bracket around the supporting stage, thereby achieving 360° shooting of the objects on the supporting stage. However, when it is necessary to reshoot the object at a certain angle, the shooting bracket cannot rotate freely due to the resistance of the drive component and the drive device. Forcing rotation may damage the drive device. The object can only be picked up, rotated at a certain angle, and then put back on the supporting stage. However, it is not possible to guarantee that it will be put back to the original position when it is put back, resulting in poor consistency between the reshot image and the original image. Therefore, the existing rotating shooting platform needs further improvement. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned deficiencies and to disclose to the public a rotating mechanism for a shooting platform with a reasonable structure, which has both electric and manual functions, and ensures the verticality of the central axis through a four-bearing assembly structure.

[0005] The technical solution of this utility model is implemented as follows: A rotating mechanism for a shooting platform includes a central shaft, a rotating frame rotatably engaged with the central shaft, a base fixed to the rotating frame, a driving device mounted on the base, a transmission ring and a connecting ring fixedly fitted around the central shaft, and an end cap at the bottom of the central shaft that pulls the central shaft downwards and fixes it in place. The driving device is connected to the transmission ring for transmission. When the connecting ring is connected to the central shaft, it is in an electrically operated state; when the connecting ring is disengaged from the central shaft, it is in a manually operated state. A first ball bearing and a second ball bearing are provided between the middle part of the central shaft and the base, a third ball bearing is provided between the central shaft and the transmission ring, and a fourth ball bearing is provided between the central shaft and the connecting ring.

[0006] Further optimization measures for this technical solution are as follows: Furthermore, a first step is provided in the middle of the central shaft, and the first step cooperates with the inner ring of the first ball bearing.

[0007] Furthermore, the end cap is provided with a second step, which mates with the inner ring of the fourth ball bearing.

[0008] Furthermore, the connecting ring has a first connecting hole radially arranged on it, and the central shaft has a second connecting hole at a corresponding position. The first connecting hole and the second connecting hole are connected by a detachable bolt or a drive pin. The bolt or drive pin allows for quick switching between the connected and disengaged states of the connecting ring and the central shaft, making operation convenient.

[0009] Furthermore, a drive shaft is provided between the drive device and the transmission ring. A first synchronous pulley is connected to the output shaft of the drive device. A second synchronous pulley and a third synchronous pulley are coaxially arranged on the drive shaft. A first synchronous belt is provided between the first and second synchronous pulleys, and a second synchronous belt is provided between the third synchronous pulley and the transmission ring. In the electric structure, a two-stage synchronous belt structure is used for transmission, which is simple in structure and reliable in transmission.

[0010] Furthermore, the rotating frame includes two parallel support rods, which pass through both sides of the base, and fixing elements are provided at intervals on the two support rods.

[0011] Furthermore, the base is provided with a power supply that is electrically connected to the drive device.

[0012] Furthermore, a detachable platform is provided at the top of the central shaft.

[0013] The advantages of this utility model compared with the prior art are: The rotating mechanism of the shooting platform of this utility model has a reasonable structure and has both electric and manual functions to meet various shooting needs. The connecting ring and the central shaft can switch between two states: transmission connection and disengagement. In the electric rotation state, the connecting ring and the central shaft are connected for transmission, and the drive device provides rotational power to drive the rotating frame to rotate. In the manual rotation state, the connecting ring and the central shaft are disengaged, so that the central shaft is disconnected from the electric transmission structure, and the central shaft is manually driven to rotate.

[0014] In addition, the central shaft adopts a four-bearing assembly structure, namely, a first ball bearing and a second ball bearing are set between the middle of the central shaft and the base, a third ball bearing is set between the central shaft and the transmission ring, and a fourth ball bearing is set between the central shaft and the connecting ring. The third ball bearing ensures the flexibility of the transmission ring rotation. At the same time, the first ball bearing and the second ball bearing support the middle of the central shaft. The first ball bearing, the second ball bearing, the third ball bearing and the fourth ball bearing form a four-point support to avoid the tilting of the central shaft caused by the lateral tension at the transmission ring during electric drive. Attached Figure Description

[0015] Figure 1 This is a perspective structural diagram of an embodiment of the present utility model; Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model; Figure 3 yes Figure 2 Enlarged view of section A in the middle; Figure 4 This is an exploded view of an embodiment of the present utility model; Figure 5 yes Figure 4 Enlarged view of section B in the middle; Figure 6 This is a schematic diagram of the shooting platform using the rotating mechanism of this utility model.

[0016] Reference numerals: Central shaft 1, Second connecting hole 1a, End cap 11, Second step 11a, First step 12, Rotating frame 2, Support rod 21, Fixing component 22, Base 31, Drive device 32, Power supply 32a, Transmission ring 33, Connecting ring 34, First connecting hole 34a, Bolt 34b, Transmission shaft 35, First synchronous pulley 36a, Second synchronous pulley 36b, Third synchronous pulley 36c, First synchronous belt 37a, Second synchronous belt 37b, First ball bearing 41, Second ball bearing 42, Third ball bearing 43, Fourth ball bearing 44, Platform 5, Support leg assembly 6. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings: The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0018] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0019] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0020] like Figures 1 to 5 As shown, a rotating mechanism for a shooting platform includes a central shaft 1, a rotating frame 2 rotatably engaged with the central shaft 1, a base 31 fixed on the rotating frame 2, a driving device 32 mounted on the base 31, a transmission ring 33 and a connecting ring 34 fixedly mounted on the central shaft 1, and an end cap 11 at the bottom of the central shaft 1, which pulls the central shaft 1 downward and fixes it. The driving device 32 is connected to the transmission ring 33 for transmission. When the connecting ring 34 is connected to the central shaft 1, it is in an electrically driven state; when the connecting ring 34 is disengaged from the central shaft 1, it is in a manually driven state. A first ball bearing 41 and a second ball bearing 42 are provided between the center shaft 1 and the base 31, a third ball bearing 43 is provided between the center shaft 1 and the transmission ring 33, and a fourth ball bearing 44 is provided between the center shaft 1 and the connecting ring 34.

[0021] The central shaft 1 has a first step 12 in the middle, which mates with the inner ring of the first ball bearing 41.

[0022] The end cap 11 is provided with a second step 11a, which mates with the inner ring of the fourth ball bearing 44.

[0023] The connecting ring 34 has a first connecting hole 34a radially arranged on it, and the central shaft 1 has a corresponding second connecting hole 1a. The first connecting hole 34a and the second connecting hole 1a are connected by a detachable bolt 34b. When the bolt is inserted into the first connecting hole 34a and the second connecting hole 1a, the transmission ring 33 is connected to the central shaft 1. When the bolt is removed, the transmission ring 33 is disengaged from the central shaft 1. A transmission pin can also be used instead of the bolt 34b.

[0024] As an extension, the connecting ring 34 and the central shaft 1 can switch between two states: a transmission connection and a disengagement connection. Alternatively, a slider capable of radial displacement can be provided on the transmission ring 33, and a groove adapted to the slider can be provided on the central shaft 1. When the slider extends into the groove of the central shaft 1, the transmission ring 33 is connected to the central shaft 1; when the slider exits the groove of the central shaft 1, the transmission ring 33 is disengaged from the central shaft 1.

[0025] A drive shaft 35 is provided between the drive device 32 and the transmission ring 33. A first synchronous pulley 36a is connected to the output shaft of the drive device 32. A second synchronous pulley 36b and a third synchronous pulley 36c are coaxially arranged on the drive shaft 35. A first synchronous belt 37a is provided between the first synchronous pulley 36a and the second synchronous pulley 36b. A second synchronous belt 37b is provided between the third synchronous pulley 36c and the transmission ring 33. In this electric drive structure, a two-stage synchronous belt structure is used for transmission, which is simple in structure and reliable in transmission.

[0026] The aforementioned drive device 32 is preferably an electric motor.

[0027] The rotating frame 2 includes two parallel support rods 21, which pass through both sides of the base 31. Fixing members 22 are spaced apart on the two support rods 21. This arrangement increases the strength of the rotating frame 2 and improves the stability and reliability of the accessories mounted on it.

[0028] The base 31 is provided with a power supply 32a that is electrically connected to the drive device 32. The power supply 32a is rechargeable and replaceable.

[0029] The top of the central shaft 1 is provided with a detachable platform 5.

[0030] like Figure 6 As shown, in the shooting platform, the entire rotating mechanism is placed on the support leg assembly 6, the platform 5 is connected to the top of the central shaft 1, and the rotating frame 2 can be equipped with shooting device fixing frame, reflector clamp, counterweight and other accessories.

[0031] Working principle: This utility model's rotary shooting platform has both electric and manual functions to meet various shooting needs. It switches between electric and manual modes by means of a connecting ring 34 that is either connected to or disconnected from the central shaft 1.

[0032] Specifically, in the electric state, the bolt is inserted into the first connecting hole 34a and the second connecting hole 1a, connecting the connecting ring 34 to the central shaft 1 for transmission. The drive device 32 provides rotational power, driving the first synchronous pulley 36a to rotate, which in turn drives the second synchronous pulley 36b to rotate via the first synchronous belt 37a, thereby driving the rotation of the transmission shaft 35. Then, the third synchronous pulley 36c on the transmission shaft 35 transmits the force to the transmission ring 33 via the second synchronous belt 37b. Since the connecting ring 34 is connected to the central shaft 1 and fixed to the transmission ring 33, the transmission ring 33 is fixed to the central shaft 1. Due to the reciprocity of forces, the force acting on the transmission ring 33 causes the base 31 to rotate around the central shaft 1, which in turn causes the rotating frame 2 to rotate around the central shaft 1. In the electric state, the stage 6 remains stationary, while the shooting device mounting bracket fixed to the rotating frame 2 rotates, meaning the shooting device rotates 360° around the stage 6.

[0033] In manual mode, removing the bolts disengages the connecting ring 34 from the central shaft 1. This separation allows the central shaft 1 to rotate freely without the resistance of the electric drive structure. Rotating the central shaft 1 then drives the stage 6 to rotate, or the stage 6 can be rotated manually. In manual mode, the stage 6 rotates while the rotating frame 2 remains stationary unless subjected to external force, meaning the shooting device remains stationary.

[0034] The rotating shooting platform of this utility model adopts a four-bearing structure for its central shaft 1. Specifically, a first ball bearing 41 and a second ball bearing 42 are arranged between the center of the central shaft 1 and the base 31, a third ball bearing 43 is arranged between the central shaft 1 and the transmission ring 33, and a fourth ball bearing 44 is arranged between the central shaft 1 and the connecting ring 34. Here, the third ball bearing 43 ensures the flexibility of the rotation of the transmission ring 33. In addition, the first ball bearing 41 and the second ball bearing 42 provide support for the center of the central shaft 1. At the same time, the first ball bearing 41, the second ball bearing 42, the third ball bearing 43, and the fourth ball bearing 44 form a four-point support. This arrangement can prevent the central shaft 1 from tilting due to lateral tension on the transmission ring 33 in the electric state.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotating mechanism for a shooting platform, comprising a central shaft (1), characterized in that: The central shaft (1) is equipped with a rotating frame (2) that rotates with the central shaft (1). A base (31) is fixed on the rotating frame (2). A driving device (32) is provided on the base (31). A transmission ring (33) and a connecting ring (34) are fixedly fitted around the central shaft (1). An end cap (11) is provided at the bottom of the central shaft (1). The end cap (11) pulls the central shaft (1) downward and fixes it. The driving device (32) is connected to the transmission ring (33) for transmission. When the connecting ring (34) is connected to the central shaft (1) for transmission, it is in an electric rotation state. When the connecting ring (34) is separated from the central shaft (1), it is in a manual rotation state. A first ball bearing (41) and a second ball bearing (42) are provided between the middle part of the central shaft (1) and the base (31), a third ball bearing (43) is provided between the central shaft (1) and the transmission ring (33), and a fourth ball bearing (44) is provided between the central shaft (1) and the connecting ring (34).

2. The rotating mechanism of the shooting platform according to claim 1, characterized in that: The central shaft (1) has a first step (12) in the middle, which is engaged with the inner ring of the first ball bearing (41).

3. The rotating mechanism of the shooting platform according to claim 2, characterized in that: The end cap (11) is provided with a second step (11a), which is in contact with the inner ring of the fourth ball bearing (44).

4. The rotating mechanism of the shooting platform according to any one of claims 1 to 3, characterized in that: The connecting ring (34) is radially provided with a first connecting hole (34a), and the central shaft (1) is provided with a second connecting hole (1a) at a corresponding position. The first connecting hole (34a) and the second connecting hole (1a) are connected by a detachable bolt (34b) or a transmission pin.

5. The rotating mechanism of the shooting platform according to claim 4, characterized in that: A drive shaft (35) is provided between the drive device (32) and the transmission ring (33). A first synchronous pulley (36a) is connected to the output shaft of the drive device (32). A second synchronous pulley (36b) and a third synchronous pulley (36c) are coaxially provided on the drive shaft (35). A first synchronous belt (37a) is provided between the first synchronous pulley (36a) and the second synchronous pulley (36b). A second synchronous belt (37b) is provided between the third synchronous pulley (36c) and the transmission ring (33).

6. The rotating mechanism of the shooting platform according to claim 5, characterized in that: The rotating frame (2) includes two parallel support rods (21), which pass through both sides of the base (31), and the two support rods (21) are provided with fixing members (22) at intervals.

7. The rotating mechanism of the shooting platform according to claim 6, characterized in that: The base (31) is provided with a power supply (32a) that is electrically connected to the drive device (32).

8. The rotating mechanism of the shooting platform according to claim 7, characterized in that: The top of the central shaft (1) is provided with a detachable platform (5).

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