Lifting mechanism for performance stage

Abstract

The lifting mechanism for the performance stage comprises a base, a fixed box is fixedly connected to the upper end of an inner cavity of the base, a servo motor is fixedly installed at the middle end of the bottom of the outer surface of the fixed box, an oval rotating disc is fixedly installed at the output end of the servo motor, and guide wheels are movably connected to the two sides of the oval rotating disc. The surfaces of the guide wheels are movably connected with push plates through bearings, and the middle ends of the sides, away from each other, of the two push plates are fixedly connected with clamping plates. Through the arrangement of the base, the second hydraulic cylinder and the lifting table, the effect of lifting the overall use height is achieved, through the arrangement of the fixing box, the servo motor, the oval rotating disc, the guide wheel, the push plate, the clamping plate and the clamping groove, the lifting table and the base can be effectively locked and limited, the lifting table is prevented from falling back in the operation process, and the working efficiency is improved. And the stability and the safety of the whole lifting operation are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of performance auxiliary equipment, in particular to a lifting mechanism for a performance stage. Background Art

[0002] With the increasing enrichment of cultural life, people have higher and higher requirements for stage effects in performances. In order to make performing arts produce extraordinary special effects, various types of stage machinery and equipment have been installed in modern large-scale performance venues, which play a role of finishing touch and magic in the stage performances of the repertoire. The stage is usually composed of one or more platforms. The types of stages include proscenium stage, stretchable stage, circular stage and revolving stage. In modern stage design, in order to create a lively three-dimensional performance effect, the traditional static stage is gradually abandoned and replaced by a liftable stage.

[0003] For example, a Chinese utility model provides a "lifting mechanism for a performance stage", and its announcement number is: CN217996677U. The application includes a support base, a rectangular groove is opened on the support base, four electric push rods are fixedly set at the bottom of the inner side of the rectangular groove, and the output ends of the four electric push rods are fixedly connected to the same lifting platform. The lifting platform is a box structure with a hollow top, a support plate is set on the top of the lifting platform, and multiple groups of springs are fixedly set at the bottom of the inner side of the lifting platform. The top ends of the multiple groups of springs are fixedly connected to the support plate, and multiple dampers for contacting with the support plate are fixedly set at the bottom of the inner side of the lifting platform. The dampers and springs Interval setting, when the performer is performing, the body shakes or the hand swings, which will cause the support plate to vibrate, and the support plate drives multiple groups of springs to compress, thereby buffering the vibration of the support plate. When the spring is compressed to a certain extent, the support plate will contact the damper, and the vibration of the support plate will be absorbed by multiple dampers. The lifting mechanism for the performance stage in the above technology adopts an electric push rod for lifting during use. Since the whole lacks an effective locking structure during the lifting process, it is easy to cause the whole to fall back due to a malfunction, which reduces the safety of the whole use and is not conducive to personnel use. Utility Model Content

[0004] The utility model aims to provide a lifting mechanism for a performance stage, which has a good locking structure and effectively ensures the advantages of stability and safety of the overall lifting operation, and solves the problem that the lifting mechanism for a performance stage in the above-mentioned technology adopts an electric push rod for lifting operation during use, and due to the lack of an effective locking structure during the lifting process, the whole is prone to fall back due to a malfunction, thereby reducing the overall safety of use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting mechanism for a performance stage, comprising a base, a fixed box is fixedly connected to the upper end of the inner cavity of the base, a servo motor is fixedly installed at the middle end of the bottom of the outer surface of the fixed box, an elliptical turntable is fixedly installed at the output end of the servo motor, both sides of the elliptical turntable are movably connected with guide wheels, the surface of the guide wheels is movably connected with push plates through bearings, the middle ends of the two push plates away from each other are fixedly connected with a clamping plate, the surface of the clamping plate is movably connected to the upper end of the base, second hydraulic cylinders are fixedly installed around the bottom of the inner cavity of the base, a lifting platform is fixedly installed between the output ends of the four second hydraulic cylinders, and clamping grooves are provided on both sides of the inner cavity of the lifting platform.

[0006] As a preferred solution, the upper ends of the two push plates away from each other are fixedly connected with a slide rod, both ends of the top of the inner cavity of the fixed box are fixedly connected with a fixed plate, and the surface of the slide rod is movably connected to the surface of the fixed plate.

[0007] As a preferred solution, the lower ends of the two push plates on the side away from each other are fixedly connected with a support spring, and the surface of the support spring is fixedly connected to the bottom of the inner cavity of the fixed box.

[0008] As a preferred solution, guide blocks are fixedly connected to the outer surface of the fixed box on all sides, guide rods are fixedly connected to the top of the inner cavity of the lifting platform on all sides, and the surface of the guide rods is movably connected to the surface of the guide blocks.

[0009] As a preferred solution, the middle end of the top of the elliptical turntable is fixedly connected to a support shaft, and the top of the support shaft is movably connected to the middle end of the top of the inner cavity of the fixed box through a bearing.

[0010] As a preferred solution, an anti-slip pad is fixedly connected to the top of the outer surface of the lifting platform, a support block is fixedly connected to the bottom of the outer surface of the base, a first hydraulic cylinder is fixedly installed around the bottom of the outer surface of the base, a support plate is fixedly installed between the output ends of the two first hydraulic cylinders, and both ends of the bottom of the support plate are movably connected to moving wheels through bearings.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model achieves the effect of lifting the overall height of use through the arrangement of the base, the second hydraulic cylinder and the lifting platform. Through the arrangement of the fixed box, the servo motor, the elliptical turntable, the guide wheel, the push plate, the card plate and the card slot, the lifting platform and the base can be effectively locked and limited to avoid the lifting platform from falling back during the operation, and the stability and safety of the overall lifting operation are effectively improved. Under the effect of the overall coordination, the purpose of the lifting mechanism for the performance stage being able to perform the lifting operation is achieved. At the same time, it has an effective locking and limiting function during the lifting operation, which avoids falling back due to faults during the operation, and effectively improves the stability and safety of the overall lifting operation.

[0013] 2. The utility model achieves the purpose of supporting and guiding the push plate by arranging the slide rod and the fixed plate, achieves the purpose of supporting the push plate by arranging the support spring, achieves the purpose of supporting and guiding the lifting platform by arranging the guide block and the guide rod, achieves the purpose of stably supporting the elliptical turntable by arranging the support shaft, improves the anti-skid effect of the top of the lifting platform by arranging the anti-skid pad, achieves the purpose of supporting the base by arranging the support block, and achieves the purpose of pushing the support plate and the moving wheel downward under the action of the extension of the first hydraulic cylinder, so that the moving wheel can contact the ground, so that personnel can move the whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixed box of the utility model;

[0017] Figure 4 It is a partial cross-sectional structural schematic diagram of the fixed box of the utility model.

[0018] In the figure: 1. Anti-slip mat; 2. Lifting platform; 3. Support block; 4. First hydraulic cylinder; 5. Support plate; 6. Moving wheel; 7. Base; 8. Fixed box; 9. Second hydraulic cylinder; 10. Guide block; 11. Guide rod; 12. Slot; 13. Card plate; 14. Slide rod; 15. Servo motor; 16. Fixed plate; 17. Push plate; 18. Support shaft; 19. Guide wheel; 20. Elliptical turntable; 21. Support spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The lifting mechanism for the performance stage includes a base 7, a fixed box 8 is fixedly connected to the upper end of the inner cavity of the base 7, a servo motor 15 is fixedly installed at the middle end of the bottom of the outer surface of the fixed box 8, an elliptical turntable 20 is fixedly installed at the output end of the servo motor 15, guide wheels 19 are movably connected to both sides of the elliptical turntable 20, and a push plate 17 is movably connected to the surface of the guide wheel 19 through a bearing, and a card plate 13 is fixedly connected to the middle end of the two push plates 17 away from each other, and the surface of the card plate 13 is movably connected to the upper end of the base 7, and second hydraulic cylinders 9 are fixedly installed around the bottom of the inner cavity of the base 7, and a lifting platform 2 is fixedly installed between the output ends of the four second hydraulic cylinders 9, and a card slot 12 is opened on both sides of the inner cavity of the lifting platform 2.

[0021] Through the above technical scheme, through the arrangement of the base 7, the second hydraulic cylinder 9 and the lifting platform 2, the effect of lifting the overall height of use is achieved. Through the arrangement of the fixed box 8, the servo motor 15, the elliptical turntable 20, the guide wheel 19, the push plate 17, the clamping plate 13 and the clamping groove 12, the lifting platform 2 and the base 7 can be effectively locked and limited to avoid the lifting platform 2 from falling back during the operation, thereby effectively improving the stability and safety of the overall lifting operation. Under the effect of the overall coordination, the purpose of the lifting mechanism for the performance stage being able to perform lifting operations is achieved. At the same time, it has an effective locking and limiting function during the lifting operation, thereby avoiding falling back due to faults during the operation, thereby effectively improving the stability and safety of the overall lifting operation.

[0022] The upper ends of the two push plates 17 that are away from each other are fixedly connected to the slide rod 14 , and both ends of the top of the inner cavity of the fixed box 8 are fixedly connected to the fixed plates 16 , and the surface of the slide rod 14 is movably connected to the surface of the fixed plate 16 .

[0023] Through the above technical solution, by arranging the slide rod 14 and the fixing plate 16, the purpose of supporting and guiding the push plate 17 is achieved.

[0024] A support spring 21 is fixedly connected to the lower ends of the two push plates 17 on the side away from each other, and the surface of the support spring 21 is fixedly connected to the bottom of the inner cavity of the fixed box 8.

[0025] Through the above technical solution and the provision of the support spring 21 , the purpose of supporting the push plate 17 is achieved.

[0026] The outer surface of the fixed box 8 is fixedly connected with guide blocks 10 all around, the inner top of the lifting platform 2 is fixedly connected with guide rods 11 all around, and the surface of the guide rods 11 is movably connected to the surface of the guide blocks 10 .

[0027] Through the above technical solution, by arranging the guide block 10 and the guide rod 11, the purpose of supporting and guiding the lifting platform 2 is achieved.

[0028] The middle end of the top of the elliptical turntable 20 is fixedly connected with the support shaft 18, and the top of the support shaft 18 is movably connected to the middle end of the top of the inner cavity of the fixed box 8 through a bearing.

[0029] Through the above technical solution and the setting of the support shaft 18, the purpose of stably supporting the elliptical turntable 20 is achieved.

[0030] An anti-slip pad 1 is fixedly connected to the top of the outer surface of the lifting platform 2, a support block 3 is fixedly connected to the bottom of the outer surface of the base 7, a first hydraulic cylinder 4 is fixedly installed around the bottom of the outer surface of the base 7, a support plate 5 is fixedly installed between the output ends of the two first hydraulic cylinders 4, and both ends of the bottom of the support plate 5 are movably connected to moving wheels 6 through bearings.

[0031] Through the above technical scheme, the anti-skid effect of the top of the lifting platform 2 is improved by the setting of the anti-skid pad 1, and the purpose of supporting the base 7 is achieved by the setting of the support block 3. Through the setting of the first hydraulic cylinder 4, the support plate 5 and the moving wheel 6, the support plate 5 and the moving wheel 6 can be pushed downward by the extension of the first hydraulic cylinder 4, and the moving wheel 6 can be in contact with the ground, so that personnel can move the whole.

[0032] The working principle of the utility model is as follows: by controlling the extension of the second hydraulic cylinder 9 inside the base 7, the lifting platform 2 can be pushed to move upward, so as to achieve the effect of lifting the overall use height, and when the overall height is lifted to the required height, the servo motor 15 at the bottom of the fixed box 8 is started to work and drive the elliptical turntable 20 to rotate ninety degrees. While the elliptical turntable 20 rotates, it can push the push plate 17 to move through the guide wheel 19. The push plate 17 moves and drives the card plate 13 to move along the surface of the base 7 until the card plate 13 can be inserted into the card slot 12, and the lifting platform 2 and the base 7 can be effectively locked and limited, so as to prevent the lifting platform 2 from falling back during the operation, and effectively improve the stability and safety of the overall lifting operation.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A lifting mechanism for a performance stage, comprising a base (7), characterized in that: A fixed box (8) is fixedly connected to the upper end of the inner cavity of the base (7), a servo motor (15) is fixedly installed at the middle end of the bottom of the outer surface of the fixed box (8), an elliptical turntable (20) is fixedly installed at the output end of the servo motor (15), both sides of the elliptical turntable (20) are movably connected with guide wheels (19), the surface of the guide wheel (19) is movably connected with a push plate (17) through a bearing, the middle ends of the two push plates (17) away from each other are fixedly connected with a clamping plate (13), the surface of the clamping plate (13) is movably connected to the upper end of the base (7), the bottom of the inner cavity of the base (7) is fixedly installed with a second hydraulic cylinder (9), a lifting platform (2) is fixedly installed between the output ends of the four second hydraulic cylinders (9), and both sides of the inner cavity of the lifting platform (2) are provided with clamping grooves (12).

2. The lifting mechanism for a performance stage according to claim 1, characterized in that: The upper ends of the two push plates (17) on the side away from each other are fixedly connected to a slide rod (14), and both ends of the top of the inner cavity of the fixed box (8) are fixedly connected to a fixed plate (16), and the surface of the slide rod (14) is movably connected to the surface of the fixed plate (16).

3. The lifting mechanism for a performance stage according to claim 1, characterized in that: A support spring (21) is fixedly connected to the lower ends of the two push plates (17) on the side away from each other, and the surface of the support spring (21) is fixedly connected to the bottom of the inner cavity of the fixed box (8).

4. The lifting mechanism for a performance stage according to claim 1, characterized in that: The outer surface of the fixed box (8) is fixedly connected to guide blocks (10) on all sides, and the top of the inner cavity of the lifting platform (2) is fixedly connected to guide rods (11) on all sides, and the surface of the guide rods (11) is movably connected to the surface of the guide blocks (10).

5. The lifting mechanism for a performance stage according to claim 1, characterized in that: The middle end of the top of the elliptical turntable (20) is fixedly connected to a support shaft (18), and the top of the support shaft (18) is movably connected to the middle end of the top of the inner cavity of the fixed box (8) through a bearing.

6. The lifting mechanism for a performance stage according to claim 1, characterized in that: The top of the outer surface of the lifting platform (2) is fixedly connected to an anti-slip pad (1), the bottom of the outer surface of the base (7) is fixedly connected to a support block (3), the bottom of the outer surface of the base (7) is fixedly installed with a first hydraulic cylinder (4) all around the bottom, a support plate (5) is fixedly installed between the output ends of the two first hydraulic cylinders (4), and both ends of the bottom of the support plate (5) are movably connected to moving wheels (6) via bearings.

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