WO2021121219A1

WO2021121219A1 - Planar free-moving revolving stage wagon for stage performance

Info

Publication number: WO2021121219A1
Application number: PCT/CN2020/136478
Authority: WO
Inventors: 谢海歧; 吴立锋; 应建洪; 张航; 王富圆; 王燚
Original assignee: 浙江大丰实业股份有限公司
Priority date: 2019-12-16
Filing date: 2020-12-15
Publication date: 2021-06-24
Also published as: CN110965820B; CN110965820A

Abstract

A planar free-moving revolving stage wagon for stage performance, comprising a stage wagon frame (1). A fixed revolving stage frame (2) is fixedly arranged inside the stage wagon frame (1); a rotary revolving stage frame (3) is arranged inside the fixed revolving stage frame (2); a first fixed frame (4) is fixedly arranged on one inner side of the rotary revolving stage frame (3); a second fixed frame (5) is fixedly arranged on the other inner side of the rotary revolving stage frame (3); a connecting support (6) is fixedly arranged between two ends of each of the first fixed frame (4) and the second fixed frame (5); a driving shaft (7) is movably arranged between the middle parts of the first fixed frame (4) and the second fixed frame (5); movement of the stage wagon frame (1) is achieved by means of a driving wheel (8); a direction adjusting wheel (12) is used to push a direction adjusting frame (9); the direction adjusting frame (9) pushes the rotary revolving stage frame (3) to rotate around the rotary revolving stage frame (3); the rotary revolving stage frame (3) adjusts the traveling direction of the driving wheel (8), i.e., adjusting the traveling direction of the stage wagon frame (1). A revolving stage rotates conveniently, a stage wagon moves conveniently, and then the stage performance effect is enhanced.

Description

Plane free sports car turntable for stage performance

Technical field

The embodiment of the present invention relates to the technical field of stage performance equipment, in particular to a flat free sports car turntable for stage performance.

Background technique

The stage usually consists of one or more platforms, some of which can be raised and lowered. One of the main components of the theater building, the stage is the space provided for the actors to perform. It can focus the audience's attention on the actors' performance and obtain an ideal viewing effect. The stage is usually composed of one or more platforms, some of which can be raised and lowered. The understage equipment of the theater includes a car turntable, which can move linearly from the rear to the front on a fixed route to participate in the performance in the front area of the stage.

The prior art has the following shortcomings: the existing sports car turntable includes a variety of transmission forms, and the rotation of the turntable is inconvenient to control and inconvenient for the movement of the car.

Summary of the invention

To this end, the embodiment of the present invention provides a flat free-moving car turntable for stage performances, which realizes the movement of the motor car platform through the driving wheels, uses the steering wheel to push the steering rack, and the steering rack pushes the rotating turntable to rotate at its center. , To realize the rotation of the rotating turntable, while rotating the turntable to adjust the traveling direction of the driving wheels, that is, to adjust the traveling direction of the trolley frame. In the technology, because the turntable is inconvenient to rotate and adjust, it is easy to affect the problems caused by the movement of the sports car.

In order to achieve the above objective, the embodiments of the present invention provide the following technical solutions: a flat free-motion car turntable for stage performances, including a car platform, and a fixed turntable is fixedly arranged inside the car platform, and the fixed turntable A rotating turntable frame is provided inside, a first fixing frame is fixedly arranged on one side of the rotating turntable frame, a second fixing frame is fixedly arranged on the other side of the rotating turntable frame, and the first fixing frame is connected with A connecting bracket is fixedly arranged between both ends of the second fixing frame;

A drive shaft is movably arranged between the middle of the first fixing frame and the middle of the second fixing frame, a driving wheel is fixedly arranged in the middle of the driving shaft, and a side of the middle of the first fixing frame is fixedly arranged between the inner side of the rotating turntable There is a steering bracket, a fixing plate is fixedly arranged in the middle of the steering bracket, a steering shaft is fixedly arranged between the middle of the fixing plate and the inner side of the rotating turntable, and a steering wheel is fixedly arranged in the middle of the steering shaft;

The inner ring of the fixed turntable is fixedly provided with positioning grooves, the outer ring of the rotating turntable is fixedly provided with positioning rollers, the positioning rollers are movably connected with the positioning grooves, and the surface of the rotating turntable is fixedly provided with a communicating cavity A limit plate is fixedly arranged outside the communication cavity, a push rod is movably arranged in the middle of the limit plate, a clamp block is fixedly arranged at the outer end of the push rod, and tooth grooves are fixedly arranged on the top and bottom of the positioning groove, The clamping block engages with the tooth groove;

The inner end of the pushing rod is fixedly provided with a pushing roller, the inner ring of the rotating turret frame is movably provided with a rotating adjusting ring, and the outer ring surface of the rotating adjusting ring is fixedly provided with a pushing groove, and the pushing groove is matched with the pushing roller. A return spring is provided on one side of the limiting plate, and the return spring is sleeved with the push rod.

Further, the top of the vehicle platform is fixedly provided with a platform panel, the top of the rotating turntable is fixedly provided with a turntable panel, the platform panel is movably connected with the turntable panel, and the platform panel and the turntable panel are horizontally shared. Line settings.

Further, the four corners of the bottom of the vehicle platform are fixedly provided with bracket plates, the connecting bracket and the bottom of the bracket plate are both fixedly provided with supporting universal wheels, and the number of the supporting universal wheels is set to be multiple.

Further, the first fixing frame and the second fixing frame are arranged in parallel, the driving wheel is arranged at the center of the rotating turret frame, the driving wheel is symmetrically provided with supporting rollers on both sides, two supporting rollers and a driving shaft Active connection.

Further, a drive motor is fixedly arranged on one side of the middle of the second fixing frame, the output end of the drive motor is fixedly connected to the drive shaft, and a direction adjusting motor is fixedly arranged between the fixing plate and the first fixing frame. The output end of the steering motor is fixedly connected with the steering shaft, and the drive shaft and the steering shaft are arranged coaxially.

Further, the number of the positioning rollers is set to eight, the eight positioning rollers are arranged symmetrically about the axis of the rotating turntable, the number of communicating cavities is set to four, and the four communicating cavities are arranged symmetrically about the axis of the rotating turntable. , The tooth grooves are arranged in a circular ring shape.

Further, both ends of the two connecting brackets are fixedly provided with fixed blocks, and the four fixed blocks are fixedly connected with the inner ring of the rotating turntable frame, and the rotating adjusting ring penetrates the fixed block.

Further, one side of the pushing groove is arranged on a slope, and an electric push rod is provided between one end of the first fixing frame and the inner ring of the rotating adjustment ring, and between one end of the second fixing frame and the inner ring of the rotating adjustment ring, so The output end of the electric push rod is hingedly arranged with the inner ring of the rotating adjusting ring, and the cylinder body ends of the two electric push rods are hingedly arranged with the first fixing frame and the second fixing frame respectively, and the two electric push rods are centrally symmetrical about the axis of the rotating turntable. Set up.

The embodiments of the present invention have the following advantages:

1. In the present invention, by setting the driving wheel on the driving shaft, the driving wheel is used to push the rotating turntable to drive the movement of the trolley platform, the steering shaft is used to drive the steering wheel to rotate, and the steering wheel pushes the steering rack. The frame pushes the rotating turntable to rotate at its own center to realize the rotation of the rotating turntable, while rotating the turntable to adjust the traveling direction of the driving wheels, that is, to adjust the traveling direction of the car rack, relative to the existing sports car turntable, the turntable rotates Convenient and convenient for the movement of the carriage and enhance the stage performance;

2. The present invention facilitates the rotation of the rotating turntable frame in the fixed turntable frame by providing positioning grooves and positioning rollers to realize the connection between the turntable and the trolley frame. The electric push rod is used to push the rotating adjusting ring to rotate, and the rotating adjusting ring is used to rotate. The pushing groove against the pushing roller at the inner end of the pushing rod pushes the pushing rod outwards, and the clamping block on the pushing rod engages with the tooth grooves to realize the fixed connection between the rotating turntable and the fixed turntable, which is relative to the existing sports car turntable. , It is convenient for the follow-up turntable to drive the car platform to rotate, realize the overall rotation of the sports car turntable, provide more rotation effects, and facilitate stage performances.

Description of the drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary. For those of ordinary skill in the art, other implementation drawings can be derived from the provided drawings without creative work.

The structure, ratio, size, etc. shown in this specification are only used to match the content disclosed in the specification for the understanding and reading of those who are familiar with this technology. They are not used to limit the implementation of the present invention, so it is not technical. The essential meaning of the above, any structural modification, proportional relationship change, or size adjustment, without affecting the effects and objectives that can be achieved by the present invention, should still fall within the technical content disclosed in the present invention. Can cover the range.

FIG. 1 is a schematic diagram of a top cross-sectional structure provided by the present invention;

Figure 2 is a schematic diagram of the overall structure provided by the present invention;

Fig. 3 is a schematic diagram of the structure of part A of Fig. 1 provided by the present invention;

4 is a schematic diagram of the overall structure of the push rod provided by the present invention;

Figure 5 is a schematic side view of the sectional structure of a fixed turntable provided by the present invention;

Fig. 6 is a schematic diagram of the structure of part B of Fig. 1 provided by the present invention;

Figure 7 is a schematic diagram of the overall structure of the rotating adjusting ring provided by the present invention;

In the picture: 1 car platform, 2 fixed turntable, 3 rotating turntable, 4 first fixed frame, 5 second fixed frame, 6 connecting bracket, 7 drive shaft, 8 drive wheel, 9 steering frame, 10 Fixed plate, 11 steering shaft, 12 steering wheel, 13 positioning groove, 14 positioning roller, 15 communicating cavity, 16 limiting plate, 17 pushing rod, 18 clamping block, 19 tooth groove, 20 pushing roller, 21 rotating adjustment ring , 22 push slot, 23 return spring, 24 car platform panel, 25 turntable panel, 26 support plate, 27 support universal wheel, 28 support roller, 29 drive motor, 30 adjustment motor, 31 fixed block, 32 electric push rod.

Detailed ways

The following specific specific examples illustrate the implementation of the present invention. Those familiar with this technology can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention. , Not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

With reference to Figures 1-3 of the specification, a flat free-motion car turntable for stage performances of this embodiment includes a car platform 1, and a fixed turntable 2 is fixed inside the car platform 1, and the fixed turntable The frame 2 is provided with a rotating turntable 3, and a first fixing frame 4 is fixedly arranged on one side of the rotating turntable 3, and a second fixing frame 5 is fixedly arranged on the other side of the rotating turntable 3, A connecting bracket 6 is fixedly arranged between both ends of the first fixing frame 4 and the second fixing frame 5;

A drive shaft 7 is movably arranged between the middle of the first fixing frame 4 and the second fixing frame 5, a driving wheel 8 is fixedly arranged in the middle of the drive shaft 7, and the middle side of the first fixing frame 4 is connected to the rotating turntable. A steering bracket 9 is fixedly arranged between the inner sides of the frame 3, a fixing plate 10 is fixedly arranged in the middle of the steering bracket 9, and a steering shaft 11 is fixedly arranged between the middle of the fixing plate 10 and the inner side of the rotating turntable 3, A steering wheel 12 is fixedly arranged in the middle of the steering shaft 11.

Further, the top of the cart 1 is fixedly provided with a cart panel 24, the top of the rotating turntable 3 is fixed with a turntable panel 25, the cart panel 24 is movably connected to the turntable panel 25, the cart The panel 24 and the turntable panel 25 are arranged horizontally and collinearly, and the cart panel 24 and the turntable panel 25 are combined to form a stage for the actors to perform, and the rotating effect of the turntable is applied to the performance.

Further, the four corners of the bottom of the vehicle platform 1 are fixedly provided with bracket plates 26, and the bottoms of the connecting bracket 6 and the bracket plate 26 are both fixedly provided with supporting universal wheels 27, and the number of the supporting universal wheels 27 is set to be more than one. , The use of a plurality of supporting universal wheels 27 to support the cart frame 1 and the rotating turntable 3 provides sufficient friction, avoids slippage of the sports cart turntable, and facilitates the use of the moving turntable.

Further, the first fixing frame 4 and the second fixing frame 5 are arranged in parallel, the driving wheel 8 is arranged at the center of the rotating turntable 3, and the driving wheel 8 is symmetrically provided with supporting rollers 28 on both sides, two A supporting roller 28 is movably connected with the drive shaft 7, which is convenient for the drive wheel 8 to rotate following the rotation of the rotating turntable 3, and the rotation range is the same, which is convenient for controlling the travel path of the subsequent sports car rotation.

Further, a driving motor 29 is fixedly arranged on the middle side of the second fixing frame 5, the output end of the driving motor 29 is fixedly connected with the driving shaft 7, and the fixing plate 9 is fixedly arranged between the fixing plate 9 and the first fixing frame 4. The steering motor 30, the output end of the steering motor 30 is fixedly connected with the steering shaft 11, the drive shaft 7 and the steering shaft 11 are arranged coaxially, and the driving motor 29 drives the drive shaft 7 to rotate, thereby driving the drive wheels 8 rotate, and then use the driving wheel 8 to provide the driving power for the sports car turntable, and use the steering motor 30 to drive the steering shaft 11 to rotate, and then drive the steering wheel 12 to rotate, and the steering wheel 12 pushes the steering frame 9 to rotate. The platform 3 rotates at its center to realize the rotating effect of the turntable.

The specific implementation scenario is as follows: when the present invention drives the turntable of the sports car, the driving motor 29 drives the driving shaft 7 to rotate, and the driving wheels 8 on the driving shaft 7 are used to push the rotating turntable 3, and the rotating turntable 3 is set As long as the steering motor 30 drives the rotation of the steering wheel 12 to be consistent with the rotation of the driving wheel 8, the steering wheel 12 can be used to provide travel for the rotation of the sports car. Power is to facilitate the parallel movement of the turntable of the sports car. When the turntable 3 is driven to rotate, the steering motor 30 drives the steering shaft 11 to drive the steering wheel 12 to rotate, the steering wheel 12 pushes the steering frame 9, and the steering frame 9 pushes. The rotating turntable 3 rotates at its center to realize the rotation of the rotating turntable 3. The driving wheel 8 is arranged at the axis of the rotating turntable 3, and the driving wheel 8 follows the rotating turntable 3 to rotate vertically. If you want to move When the car turntable rotates in situ, the drive motor 29 is closed at this time, that is, the driving wheel 8 does not move, only the steering shaft 11 is driven by the steering motor 30 to drive the steering wheel 12 to rotate, and the subsequent steering rack pushes the rotating turntable 3 to rotate , Adjust the traveling direction of the driving wheel 8, that is, adjust the traveling direction of the carriage 1, the turntable is convenient to rotate, and the movement of the carriage is convenient, and the stage performance effect is enhanced.

Referring to Figures 1 and 4-7 of the specification, a flat free-motion car turntable for stage performances of this embodiment, the fixed turntable 2 is fixedly provided with positioning grooves 13 in the inner ring, and the outer ring of the rotating turntable 3 A positioning roller 14 is fixedly provided, and the positioning roller 14 is movably connected with the positioning groove 13, a communicating cavity 15 is fixedly provided on the surface of the rotating turntable 3, and a limit plate 16 is fixedly provided on the outside of the communicating cavity 15, and the limiter A push rod 17 is movably provided in the middle of the position plate 16, and the outer end of the push rod 17 is fixedly provided with a clamping block 18, and both the top and the bottom of the positioning groove 13 are fixedly provided with a tooth groove 19, the clamping block 18 and the tooth groove 19 Meshing

The inner end of the pushing rod 17 is fixedly provided with a pushing roller 20, the inner ring of the rotating turntable 3 is movably provided with a rotating adjusting ring 21, and the outer ring surface of the rotating adjusting ring 21 is fixedly provided with a pushing groove 22. The groove 22 is matched with the pushing roller 20, a return spring 23 is provided on one side of the limiting plate 16, and the return spring 23 is sleeved with the pushing rod 17.

Further, the number of the positioning rollers 14 is set to eight, the eight positioning rollers 14 are arranged symmetrically about the axis of the rotating turntable 3, the number of the communicating cavities 15 is set to four, and the four communicating cavities 15 are related to the rotating turntable 3 The shaft center is arranged symmetrically, and the tooth groove 19 is arranged in a circular ring shape.

Further, both ends of the two connecting brackets 6 are fixedly provided with fixing blocks 31, and the four fixing blocks 31 are fixedly connected to the inner ring of the rotating turntable 3, and the rotating adjusting ring 21 penetrates the fixing block 31 to facilitate the rotating of the adjusting ring 21. The installation is convenient for the use of the turning adjustment ring 21.

Further, one side of the pushing groove 22 is arranged on a slope, and between one end of the first fixing frame 4 and the inner ring of the rotating adjustment ring 21, and between one end of the second fixing frame 5 and the inner ring of the rotating adjustment ring 21 are provided. Electric push rod 32, the output end of the electric push rod 32 is hingedly arranged with the inner ring of the rotating adjustment ring 21, and the cylinder body ends of the two electric push rods 32 are hingedly arranged with the first fixing frame 4 and the second fixing frame 5. The two electric push rods 32 are arranged symmetrically about the axis of the rotating turntable 3, which facilitates the two electric push rods 32 to push the rotation adjustment ring 21 to rotate.

The specific implementation scenario is as follows: when the rotating turntable 3 rotates in the present invention, the positioning roller 14 on the rotating turntable 3 moves in the positioning groove 13, which facilitates the rotation of the rotating turntable 3 in the fixed turntable 2 and improves the turntable. The stability of the connection with the carriage 1, when the adjustment carriage and the turntable are integrated, the electric push rod 32 is operated to push the rotation adjustment ring 21 to rotate, and the pushing groove 22 on the rotation adjustment ring 21 resists the pushing roller at the inner end of the pushing rod 17 20. Push the push rod 17 outward, and the block 18 on the push rod 17 meshes with the tooth groove 19 to realize the fixed connection between the rotating turntable 3 and the fixed turntable 2, that is, the locking of the turntable and the turning table, the ring The tooth groove 19 is arranged in a circular shape to realize the 360° rotation adjustment and locking of the rotating turntable 3, which is convenient for the subsequent turntable to drive the trolley rack 1 to rotate, realizes the overall rotation of the sports car turntable, provides more rotating effects, and is convenient for stage performances. The subsequent two electric push rods 32 contract and drive the rotating adjustment ring 21 to rotate in the reverse direction. The return spring 23 is used to drive the push rod 17 to retract the communicating cavity 15 on the rotating turntable 3 to release the engagement between the clamping block 18 and the tooth groove 19, It is convenient for the subsequent rotation of the turntable to not affect the turntable.

working principle:

Referring to Figures 1-3, when driving the turntable of the sports car, the drive motor 29 drives the drive shaft 7 to rotate. The drive wheels 8 on the drive shaft 7 are used to push the rotating turntable 3, and the rotating turntable 3 is set The inside of the carriage 1 drives the movement of the carriage 1, and when the rotating turntable 3 is driven to rotate, the steering motor 30 drives the steering shaft 11 to drive the steering wheel 12 to rotate, and the steering wheel 12 pushes the steering rack 9. Push the rotating turntable 3 to the frame 9 to rotate at its center to realize the rotation of the rotating turntable 3, the driving wheel 8 is arranged at the axis of the rotating turntable 3, and the driving wheel 8 rotates vertically following the rotating turntable 3, Adjust the traveling direction of the driving wheel 8, that is, adjust the traveling direction of the carriage 1, the turntable is convenient to rotate, and it is convenient for the movement of the carriage to enhance the stage performance effect;

1 and 4-7, when the rotating turntable 3 rotates, the positioning roller 14 on the rotating turntable 3 moves in the positioning groove 13, which facilitates the rotation of the rotating turntable 3 in the fixed turntable 2. Improve the stability of the connection between the turntable and the carriage 1, when the adjustment carriage and the turntable are integrated, the electric push rod 32 is operated to push the rotation adjustment ring 21 to rotate, and the push groove 22 on the rotation adjustment ring 21 resists the inner end of the push rod 17. Push the roller 20 to push the push rod 17 outward, and the block 18 on the push rod 17 engages with the tooth groove 19 to realize the fixed connection between the rotating turntable 3 and the fixed turntable 2, that is, the locking of the turntable and the turning table. The tooth groove 19 provided in the ring shape realizes the 360° rotation adjustment and locking of the rotating turntable 3, which is convenient for the subsequent turntable to drive the trolley frame 1 to rotate, realize the overall rotation of the sports car turntable, and provide more rotating effects, which is convenient for the stage. Performance.

Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made on the basis of the present invention, which is obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of the present invention.

Claims

A plane free-moving vehicle turntable for stage performances, comprising a vehicle platform (1), characterized in that: the vehicle platform (1) is fixedly provided with a fixed turntable (2) inside, and the fixed turntable ( 2) A rotating turntable (3) is arranged inside, a first fixing frame (4) is fixedly arranged on one side of the rotating turntable (3), and the other side of the rotating turntable (3) is fixed inside A second fixing frame (5) is provided, and a connecting bracket (6) is fixedly arranged between both ends of the first fixing frame (4) and the second fixing frame (5);

A drive shaft (7) is movably arranged between the middle of the first fixing frame (4) and the second fixing frame (5), and a driving wheel (8) is fixedly arranged in the middle of the drive shaft (7). A direction-adjusting bracket (9) is fixedly arranged between one side of the middle part of the fixing frame (4) and the inner side of the rotating turntable (3), and a fixing plate (10) is fixedly arranged in the middle of the direction-adjusting bracket (9). A steering shaft (11) is fixedly arranged between the middle of the plate (10) and the inner side of the rotating turntable (3), and a steering wheel (12) is fixedly arranged in the middle of the steering shaft (11);

The inner ring of the fixed turntable (2) is fixedly provided with a positioning groove (13), the outer ring of the rotating turntable (3) is fixedly provided with a positioning roller (14), the positioning roller (14) and the positioning groove (13) Removable connection, a connecting cavity (15) is fixedly arranged on the surface of the rotating turntable (3), and a limiting plate (16) is fixedly arranged on the outside of the connecting cavity (15), and the limiting plate (16) A push rod (17) is movably arranged in the middle part, a clamp block (18) is fixedly arranged at the outer end of the push rod (17), and tooth grooves (19) are fixedly arranged on the top and bottom of the positioning groove (13). The clamping block (18) is engaged with the tooth groove (19);

The inner end of the pushing rod (17) is fixedly provided with a pushing roller (20), the inner ring of the rotating turntable (3) is movably provided with a rotating adjusting ring (21), and the outer ring surface of the rotating adjusting ring (21) A pushing groove (22) is fixedly provided, and the pushing groove (22) is matched with the pushing roller (20). One side of the limiting plate (16) is provided with a return spring (23), the return spring (23) Socketed with the push rod (17).
A plane free-moving car turntable for stage performances according to claim 1, characterized in that: the top of the car platform (1) is fixedly provided with a car platform panel (24), and the rotating turntable (3) The top is fixedly provided with a turntable panel (25), the turntable panel (24) is movably connected with the turntable panel (25), and the turntable panel (24) and the turntable panel (25) are arranged horizontally and collinearly.
A plane free-moving car turntable for stage performances according to claim 1, characterized in that: the four corners of the bottom of the car platform (1) are fixedly provided with bracket plates (26), the connecting bracket (6) and the bracket The bottom of the plate (26) is fixedly provided with supporting universal wheels (27), and the number of the supporting universal wheels (27) is set to be multiple.
The flat free-moving car turntable for stage performances according to claim 1, characterized in that: the first fixing frame (4) and the second fixing frame (5) are arranged in parallel, and the driving wheel (8) It is arranged at the center of the rotating turntable (3), the driving wheel (8) is symmetrically provided with supporting rollers (28) on both sides, and the two supporting rollers (28) are movably connected with the driving shaft (7).
The flat free-motion car turntable for stage performances according to claim 1, characterized in that: a driving motor (29) is fixedly arranged on one side of the middle of the second fixing frame (5), and the driving motor (29) The output end is fixedly connected with the drive shaft (7), a direction adjustment motor (30) is fixedly arranged between the fixing plate (9) and the first fixing frame (4), and the output end of the direction adjustment motor (30) is connected to the adjustment The steering shaft (11) is fixedly connected, and the driving shaft (7) and the steering shaft (11) are arranged coaxially.
The flat free-motion car turntable for stage performances according to claim 1, characterized in that: the number of positioning rollers (14) is set to eight, and the eight positioning rollers (14) are about the axis of the rotating turntable (3). It is arranged symmetrically in the center, the number of the communication cavities (15) is set to four, the four communication cavities (15) are arranged symmetrically about the axis of the rotating turntable (3), and the tooth grooves (19) are arranged in a circular ring shape. .
The flat free-motion car turntable for stage performances according to claim 1, characterized in that: two connecting brackets (6) are fixedly provided with fixed blocks (31) at both ends, and the four fixed blocks (31) are connected with the rotating The inner ring of the turntable (3) is fixedly connected, and the rotating adjusting ring (21) penetrates the fixed block (31).
The flat free-moving car turntable for stage performances according to claim 1, characterized in that: one side of the pushing groove (22) is arranged in an inclined plane, and one end of the first fixing frame (4) is connected to the rotating adjusting ring ( 21) An electric push rod (32) is provided between the inner rings and between one end of the second fixing frame (5) and the inner ring of the rotating adjustment ring (21), and the output end of the electric push rod (32) is connected to the rotating adjustment ring. (21) The inner ring is articulated, and the cylinder body ends of the two electric push rods (32) are respectively articulated with the first fixing frame (4) and the second fixing frame (5), and the two electric push rods (32) are related to the rotating turntable. (3) The axis is arranged symmetrically.