Stage lifting system

Abstract

The utility model provides a stage lifting system which solves the problems that in the prior art, a stage lifting system is complex in structure and low in transmission efficiency and stability. A stage lifting system comprises a lifting table, a lifting assembly and a driving assembly used for driving the lifting assembly to ascend and descend. The stage lifting system is simple in structure and smooth in lifting, the speed reducer is arranged in the driving assembly, the ascending and descending height of the lifting table can be well controlled, and the stage performance effect can be improved. The lifting platform is further provided with a counterweight assembly and a self-locking piece, when the stage ascends, the counterweight assembly descends, the power of the motor can be reduced, the lifting smoothness of the lifting platform is optimized, and electric energy can be saved. In addition, a self-locking function is achieved, the self-locking piece is fixed to the guide rail and can stretch out and draw back relative to the guide rail, and when the lifting table reaches the locking position, the self-locking piece stretches out and is connected to the lifting table in a clamped mode, the lifting table is fixed in time, and safety of the lifting table is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical stage systems, and in particular relates to a stage lifting system. Background Art

[0002] A stage lift is a platform that can be raised or lowered on the stage and change its height. Such equipment is usually used in stage performances, shows or other activities to help adjust the height of different parts of the performance or show different scenes. The design of the lift can adjust the height as needed, and some can even rotate or tilt smoothly, bringing richer visual effects to the performance.

[0003] In stage design, the use of lifts can increase the diversity and visual impact of performances, making the performances more vivid and eye-catching. Such equipment is widely used in stage plays, concerts, dance performances and other types of performances. By flexibly using lifts, actors can show their performances at different heights, and at the same time, they can present a richer stage effect for the audience.

[0004] However, most of the existing stage lifting systems use a scissor fork structure to achieve lifting, which is complex, has low transmission efficiency and stability, and is prone to jamming and unsmooth lifting during the lifting process, affecting the stage effect. In addition, some stage lifts are not fixed in time after rising, which can easily cause the table top to fall or tilt. Utility Model Content

[0005] The utility model provides a stage lifting system, aiming to solve the problems of complex structure, low transmission efficiency and low stability of the stage lifting system in the prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A stage lifting system comprises: a lifting platform, a lifting assembly and a driving assembly for driving the lifting assembly to lift; the lifting platform is located at the top of the lifting assembly, and the bottom of the lifting assembly is connected to the driving assembly;

[0008] The driving assembly includes a base arranged on the base surface, and the driving assembly includes a motor and two reducers, the motor is arranged in the middle area of ​​the base, and the two reducers are respectively arranged on the left and right sides of the motor;

[0009] The lifting assembly includes a rigid chain and a lifter for driving the rigid chain to lift, wherein the rigid chain is arranged between the lifting platform and the base, one end of the rigid chain is fixed to the lifting platform, and the other end of the rigid chain is connected to the lifter;

[0010] Counterweight assemblies are provided on both sides of the lifting platform, and the counterweight assemblies include chains, guide rails, and counterweight blocks slidably arranged on the guide rails. The counterweight blocks are connected to the lifting platform through chains. When the lifting platform rises, the counterweight blocks fall.

[0011] A self-locking part for locking the lifting platform is telescopically provided on the guide rail, and the lifting platform is provided with a locking position. When the lifting platform reaches the locking position, the self-locking part extends out and is clamped on the lifting platform. When the lifting platform leaves the locking position, the self-locking part retracts into the guide rail and unlocks the lifting platform.

[0012] Preferably, the driving assembly further comprises a transmission shaft, and the driving assembly drives the lifting assembly to rise and fall via the transmission shaft and the reducer.

[0013] In a preferred solution, the input end of the reducer is connected to the motor through the transmission shaft, and the output end of the reducer is connected to the lifter.

[0014] In a preferred solution, a universal shaft connector is provided in the middle of the transmission shaft.

[0015] Based on the above scheme, the universal shaft connector connects the reducer input shaft and output shaft that are not on the same straight line, and ensures that power can be transmitted reliably when the angle and distance between the two shafts change frequently, ensuring that the lifting platform can rise and fall smoothly.

[0016] In a preferred solution, a sprocket is provided in the lifter, and the sprocket is connected to the rigid chain;

[0017] When the reducer drives the driving sprocket to rotate, the rotation of the sprocket drives the rigid chain to rise and fall.

[0018] Based on the above scheme, the sprocket adopts a precision manufacturing process to ensure the transmission accuracy between its gears, and can smoothly and accurately transmit power to the rigid chain, so that the rigid chain can rise or fall smoothly, and the sprocket can also withstand higher load pressure.

[0019] In a preferred solution, the lifting components and the driving components are each at least three groups.

[0020] Based on the above solution, because the lifting platform is a large platform, at least 3 sets of motor lifting components and drive components are used to ensure the safety of the lifting platform when it rises and falls.

[0021] In a preferred solution, the counterweight assembly is comprised of two groups, and the two groups of counterweight assemblies are respectively disposed on two outer sides of the support frame.

[0022] Based on the above solution, two sets of counterweight assemblies are respectively arranged on the two outer sides of the support frame to reduce the power of the motor.

[0023] In a preferred embodiment, a first pulley, a second pulley and a chain are provided on the guide rail, the first pulley is arranged above the guide rail, the second pulley is arranged below the guide rail, one end of the chain is sequentially wound through the first pulley and the second pulley and fixed on the lifting platform, and the other end is connected to the counterweight block.

[0024] Based on the above scheme, setting a pulley on the guide rail can prevent the counterweight block from getting stuck or not smooth when rising or falling, so that the counterweight block can rise or fall quickly to reduce the power of the motor.

[0025] Preferably, a storage cavity for storing the chain is provided on the inner side wall of the lifting platform, and the storage cavity is located between the rigid chain and the guide rail.

[0026] Preferably, the storage chamber is arranged along the moving direction of the lower end of the chain.

[0027] The beneficial effects of the utility model are:

[0028] 1. The utility model provides a stage lifting system with a simple structure. The driving component drives the rigid chain to rise and fall, thereby realizing the rise and fall of the lifting platform. The lifting is smooth and smooth. In addition, since a reducer is provided in the driving component, the rising and falling height of the lifting platform can be better controlled, which is beneficial to improving the stage performance effect.

[0029] 2. The utility model is also provided with a counterweight assembly and a self-locking member. When the stage rises, the counterweight block descends to reduce the power of the motor, which not only improves the smoothness of the lifting platform, but also saves electricity. In addition, there is a self-locking function, that is, the self-locking member is fixed on the guide rail and can be extended relative to the guide rail. When the lifting platform reaches the locking position, the self-locking member extends and clamps on the lifting platform, fixing the lifting platform in time to ensure the safety of the lifting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a front view of a stage lifting system in the utility model.

[0032] Figure 2 yes Figure 1 A magnified image of point A;

[0033] Figure 3 yes Figure 1 The enlarged view of point B;

[0034] Figure 4 It is a top view of the drive assembly in the utility model;

[0035] Figure 5 yes Figure 4 Enlarged view of point C.

[0036] Description of the numbers in the figure:

[0037] 1-lifting platform; 2-rigid chain; 3-sprocket; 4-motor; 5-transmission shaft; 6-reducer; 7-weight reduction block; 8-guide rail; 9-first pulley; 10-second pulley; 11-chain; 12-counterweight frame; 13-self-locking part. DETAILED DESCRIPTION

[0038] 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. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.

[0039] See also Figure 1-Figure 5 This embodiment provides a stage lifting system, comprising: a lifting platform 1, a lifting component and a driving component for driving the lifting component to lift; the lifting platform 1 is located at the top of the lifting component, and the bottom of the lifting component is connected to the driving component;

[0040] The driving assembly includes a base arranged on the base surface, and the driving assembly includes a motor 4 and two reducers 6, wherein the motor 4 is arranged in the middle area of ​​the base, and the two reducers 6 are respectively arranged on the left and right sides of the motor 4;

[0041] The lifting assembly includes a rigid chain 2 and a lifter for driving the rigid chain 2 to lift, wherein the rigid chain 2 is arranged between the lifting platform 1 and the base, one end of the rigid chain 2 is fixed on the lifting platform 1, and the other end of the rigid chain 2 is connected to the lifter;

[0042] Counterweight assemblies are provided on both sides of the lifting platform 1, and the counterweight assemblies include chains 11, guide rails 8, and counterweight blocks slidably arranged on the guide rails 8. The counterweight blocks are connected to the lifting platform 1 through the chains 11. When the lifting platform 1 rises, the counterweight blocks fall.

[0043] A self-locking member 13 for locking the lifting platform 1 is telescopically provided on the guide rail 8. The lifting platform 1 is provided with a locking position. When the lifting platform 1 reaches the locking position, the self-locking member 13 extends out and is clamped on the lifting platform 1. When the lifting platform 1 leaves the locking position, the self-locking member 13 retracts into the guide rail 8 and unlocks the lifting platform 1.

[0044] The driving assembly further includes a transmission shaft 5 , and the driving assembly drives the lifting assembly to rise and fall through the transmission shaft 5 and the reducer 6 .

[0045] The input end of the reducer 6 is connected to the motor 4 through the transmission shaft 5, and the output end of the reducer 6 is connected to the lifter.

[0046] Specifically, the input end of the reducer 6 is connected to the output end of the motor 4 through the transmission shaft 5, and the output end of the reducer 6 is connected to the lifter, and transmits the power of the motor 4 to the lifter, so that the lifter is lifted and lowered. Moreover, there are two reducers 6, which are respectively connected to the left and right sides of the motor 4.

[0047] In addition, a universal shaft connector is provided in the middle of the transmission shaft 5 .

[0048] In order to realize the lifting and lowering of the rigid chain 2, on the basis of the above scheme, a sprocket 3 is provided in the lifter, and the sprocket 3 is connected to the rigid chain 2;

[0049] When the reducer 6 drives the driving sprocket 3 to rotate, the rotation of the sprocket 3 drives the rigid chain 2 to rise and fall.

[0050] Specifically, the rigid chain 2 is connected to the sprocket 3. When the sprocket 3 rotates, the transmission force can be smoothly and accurately transmitted to the rigid chain 2, so that the rigid chain 2 can be smoothly raised or lowered.

[0051] In addition, because the lifting platform 1 is a large platform, the lifting components and the driving components are at least three groups.

[0052] Specifically, the lifting components and the driving components can be 3 groups, 4 groups or 5 groups, etc. A better solution is that the lifting components and the driving components are 3 groups, and are arranged in parallel, and are started at the same time to simultaneously raise and lower the lifting platform 1.

[0053] In addition, the counterweight components are divided into two groups, and the two groups of counterweight components are respectively arranged on the two outer sides of the support frame.

[0054] The guide rail 8 is provided with a first pulley 9, a second pulley 10 and a chain 11, wherein the first pulley 9 is arranged above the guide rail 8, and the second pulley 10 is arranged below the guide rail 8, one end of the chain 11 is sequentially wound through the first pulley 9 and the second pulley 10 and fixed on the lifting platform 1, and the other end is connected to the counterweight block.

[0055] Specifically, the counterweight assembly also includes a vertically arranged counterweight frame 12, and the counterweight frame 12 is arranged on the outside of the guide rail 8. The first pulley 9 includes three pulleys, one is arranged above the counterweight frame 12, and the other two are arranged above the guide rail 8. The second pulley 10 includes at least two pulleys and is arranged below the guide rail 8, one is arranged on the guide rail 8, and the other is arranged directly below the lifting platform 1. The counterweight block is connected by the chain 11, and the chain 11 is wound around the second pulley 10 through the first pulley 9, and then wound upward and fixed on the lifting platform 1 bracket. The counterweight block is arranged on the counterweight frame 12 through the chain 11, and is lifted and lowered on the counterweight frame 12.

[0056] In addition, a storage cavity for storing the chain 11 is provided on the inner side wall of the lifting platform 1, and the storage cavity is located between the rigid chain 2 and the guide rail 8. The storage cavity is arranged along the moving direction of the lower end of the chain 11.

[0057] Specifically, the storage cavity is arranged on the inner wall of the lifting platform 1. When the counterweight block rises, the chain 11 is partially stored in the storage cavity. When the counterweight block descends, the chain 11 stored in the storage cavity is pulled out by the counterweight block.

[0058] The utility model is further explained below in conjunction with the working principle:

[0059] The motor 4 transmits power to the reducer 6 through the transmission shaft 5. The output end of the reducer 6 is connected to the lifter. The sprocket 3 in the lifter rotates to drive the rigid chain 2 to rise and fall. The lifting platform 1 slowly rises and pulls the chain 11 to lift the counterweight block to reduce the power of the motor 4. When the lifting platform 1 rises to the locking position, the self-locking member 13 extends from the guide rail 8 to fix the height of the lifting platform 1; when the lifting platform 1 leaves the locking position, the self-locking member 13 retracts into the guide rail 8 to unlock the lifting platform 1.

[0060] The present utility model is not limited to the above optional implementation modes. Under the premise of not conflicting with each other, the various schemes can be combined arbitrarily. Anyone can derive other forms of products under the inspiration of the present utility model. However, no matter what changes are made in their shapes or structures, all technical schemes that fall within the scope defined by the claims of the present utility model fall within the protection scope of the present utility model.

Claims

1. A stage lifting system, characterized in that: include: A lifting platform, a lifting assembly, and a driving assembly for driving the lifting assembly to lift; The lifting platform is located at the top of the lifting assembly, and the bottom of the lifting assembly is connected to the driving assembly; The driving assembly includes a base, the driving assembly includes a motor and two reducers, the motor is arranged in the middle area of ​​the base, and the two reducers are respectively arranged on the left and right sides of the motor; The lifting assembly includes a rigid chain and a lifter for driving the rigid chain to lift, wherein the rigid chain is arranged between the lifting platform and the base, one end of the rigid chain is fixed to the lifting platform, and the other end of the rigid chain is connected to the lifter; Counterweight assemblies are provided on both sides of the lifting platform, and the counterweight assemblies include chains, guide rails, and counterweight blocks slidably arranged on the guide rails. The counterweight blocks are connected to the lifting platform through chains. When the lifting platform rises, the counterweight blocks fall. A self-locking part for locking the lifting platform is telescopically provided on the guide rail, and the lifting platform is provided with a locking position. When the lifting platform reaches the locking position, the self-locking part extends out and is clamped on the lifting platform. When the lifting platform leaves the locking position, the self-locking part retracts into the guide rail and unlocks the lifting platform.

2. A stage lifting system according to claim 1, characterized in that: The driving assembly also includes a transmission shaft, and the driving assembly drives the lifting assembly to rise and fall through the transmission shaft and the reducer.

3. A stage lifting system according to claim 2, characterized in that: The input end of the reducer is connected to the motor through the transmission shaft, and the output end of the reducer is connected to the lifter.

4. A stage lifting system according to claim 2, characterized in that: A universal shaft connector is arranged in the middle of the transmission shaft.

5. A stage lifting system according to claim 1, characterized in that: A sprocket is provided in the lifter, and the sprocket is connected to the rigid chain; When the reducer drives the sprocket to rotate, the rotation of the sprocket drives the rigid chain to rise and fall.

6. A stage lifting system according to claim 1, characterized in that: The lifting components and the driving components are each at least three groups.

7. A stage lifting system according to claim 1, characterized in that: The counterweight components are divided into two groups, and the two groups of counterweight components are respectively arranged on two outer sides of the lifting platform.

8. A stage lifting system according to claim 1, characterized in that: The guide rail is provided with a first pulley, a second pulley and a chain, the first pulley is arranged above the guide rail, the second pulley is arranged below the guide rail, one end of the chain is wound through the first pulley and the second pulley in sequence and fixed on the lifting platform, and the other end is connected to the counterweight block.

9. A stage lifting system according to claim 1, characterized in that: A storage cavity for storing the chain is provided on the inner side wall of the lifting platform, and the storage cavity is located between the rigid chain and the guide rail.

10. A stage lifting system according to claim 9, characterized in that: The storage chamber is arranged along the moving direction of the lower end of the chain.

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