Jinan Hetai Hydraulic Machinery Co., Ltd.

The lifting stage is the most commonly used product on the stage. Its main function is to move the scenery and actors up and down during scene changes. In addition, in order to highlight the main actors, the stage will slowly rise, and the actors will dance on the stage, creating an ups and downs scene on the stage. At the same time, the process of stage lifting movements can also increase the performance effect.
Classification
The lifting stage is divided into telescopic stage, rotating stage, telescopic lifting rotating stage, lifting rotating stage, etc.
The rotating stage has multiple functions such as lifting, rotating, and tilting. The control adopts self-locking, interlocking, travel switch, mechanical limit, hydraulic explosion-proof and other protection measures.
The telescopic stage adopts an effective guide system, so that the gap between the telescopic stage and the fixed stage is small during the translation process, the operation is smooth, and the speed changes steplessly. The synchronization device adopts low-speed and high-torque drive, so that the stage can be absolutely parallel, free and in place during the expansion and contraction process, and can automatically achieve leveling. Suitable for cultural and entertainment venues such as auditoriums, theaters, multi-functional halls, studios, cultural and sports venues, hotels, etc.
z=concept
Lifting tables
are the most widely used under-stage equipment in stage machinery. One of the equipments, professional opera houses, dance theaters, and drama theaters are equipped with a large number of various types of lifting tables. Even in some drama theaters that mainly use turntables, drum-shaped turntables are also equipped with lifting tables of different specifications. platform or lifting block. Many internationally renowned concert halls are equipped with lifting platforms for orchestras, choirs or large musical instruments. In some small experimental theaters, in order to achieve changes in stage form, the entire stage is covered with lifting platforms designed according to the module. Take the National Center for the Performing Arts as an example. Among the equipment under the stage of the opera house, there are forty-five lifting platforms. There are two lifting platforms and thirteen lifting blocks in the drum-shaped turntable of the theater. There are three lifting blocks under the stage of the concert hall. A lift table and a piano lift table. The design plan of a certain experimental small theater includes twenty-four lifting platforms.
The function of the lifting platform
The function of the lifting platform in the theater is roughly as follows
① Rapid scenery change The main lifting platform arranged in the main performance area of the stage is mainly used to quickly change the scenery. In a typical song and dance theater stage arranged in a "pin" shape, the lifting platform, together with the side car platform and the rear car turntable, can quickly change the entire stage or part of the scene. This arrangement allows for rapid changeover of three full sets.
② To meet the needs of stage craftsmanship, in song and dance theater stages arranged in a shape, auxiliary lifting platforms are often arranged in front, back, left and right of the main stage lifting platform, and side and rear auxiliary lifting platforms are often used for The side car platform and the rear vehicle-mounted turntable can be smoothly opened, and the front auxiliary lifting platform is used to place the rear vehicle-mounted turntable closest to the platform opening. The leveling lifting platform under the side car platform and the rear car-mounted turntable can level the table after the side car platform or the rear car-mounted turntable is driven out, so that there will be no height difference on the entire table surface to ensure the safety of the performers.
③Meet the needs of stage designers and repertoire directors. In different repertoires, according to the requirements of stage designers and repertoire directors, different height changes of the lifting platform can be used to change the shape of the stage to adapt to the requirements of the plot for the scenery or venue. , to save manpower and material resources consumed in setting up scenes. The tilting device of the lifting platform is used to form an inclined table, which can better highlight the perspective effect in various performances.
④ Create special atmosphere and effects according to the needs of the plot. Since the emergence of stage machinery, even the simplest stage machinery has often participated in performance activities and created some unexpected atmospheres and effects according to the needs of the plot. Effect. For example, the low-speed descent of the elevator is used to represent a sunken ship in the sea, and the trap door on the elevator and the actor's elevator are used to express the sudden disappearance and appearance of people.
⑤ Change the form of the stage according to the needs of different performance genres. For example, the orchestra pit lift can be used to combine the framed stage with the large lip or even the extended stage. In the experimental theater, the lift can be used to make the theater It has various forms such as end stage, extended stage, island stage, middle stage, shaped stage or hall.
⑥Use the lifting platform as a tool for storing stage carpets, soft scenery films, etc. for performances. In some theaters, there is always a soft scenery library lifting platform at an appropriate position on the stage for the storage of stage carpets and soft scenery films.
⑦ Use lifting platforms as a tool for vertical transportation of goods. At the rear of the main stage or at the end of the side stage in many theaters, there are scenery container transport lifting platforms, which are used to transport items vertically from the ground to a designated location or even stage plane. Orchestra pit lifts are also often used to transport movable seats, etc.
The layout and size of the lifting platform
For a box-shaped frame stage, the layout of the main stage lifting platform often matches the stage performance area. Different types of plays require different sizes of performance areas. Usually the main stage lifting platform The stage should cover the performance area and the scenic area. According to the requirements of the stage process layout, when there is a side stage and a side car platform is set up, corresponding auxiliary lifting platforms and leveling lifting platforms are set up at the corresponding positions. When there is a rear stage and a vehicle-mounted turntable is set up, the front and rear lifts are set up at the corresponding positions as needed. Rear auxiliary lifting platform and leveling lifting platform.
z=Type
The stage is a space provided for actors to perform in the theater. It can focus the audience's attention on the actors' performance and obtain the ideal viewing effect. A stage usually consists of one or more platforms, some of which can be raised or lowered.
A proscenium stage means that the audience is located on one side of the stage, while the remaining sides of the stage are blocked by objects for actors and technical staff to prepare.
The difference between the stretch stage and the proscenium stage is that a part of the stage protrudes forward, extending towards the auditorium, and three sides of this part are exposed to the audience.
The ring-shaped stage means that the audience is located around the stage. Usually the ring-shaped stage is located in the center of the theater. The audience can enjoy the performance up close.
The unfolding of the stage car includes the following four parts
) Hydraulic support part of the stage car body (also called hydraulic support leg): It is mainly supported in place by four oil cylinders to ensure the balance and stability of the car body (stage).
) The unfolding part of the left and right side panels of the stage car: the two sets of oil cylinders on the left and right act separately to unfold the two side panels of the carriage parallel to the top plate.
) The left and right floor expansion parts of the stage car: The foldable movable auxiliary floor is unfolded from the inside of the car to the same level as the car floor by the oil cylinders installed under the floor.
) Stage car roof lifting part: Four roof lifting cylinders operate simultaneously to lift the car roof and both sides of the car to a certain height.