Stage lifting ladder

Abstract

The utility model discloses a stage lifting step. The stage lifting step comprises a main lifting step body and an electric stepping step body. The main lifting step is installed in a stage foundation pit and comprises a main body step, the main body step has a first form and a second form, the first form is a form that a plurality of movable step units are sequentially connected to form a platform flush with the stage ground, and the second form is a form that a plurality of movable step units are sequentially connected to form a step; the electric step comprises a support frame, an extension step and a third driving device, and the end part of the support frame is rotationally connected with the edge of the two-layer stage; and the third driving device is linked with the supporting frame, and the supporting frame is driven by the third driving device to drive the extension ladder to be connected with the main body ladder in the second form. According to the stage equipment, convenience is provided for an actor to run between an upper layer and a lower layer, the safety accident that the actor misses the step in the performance process can be avoided, and the safety and functionality of the stage equipment in use are improved.

Description

Technical Field

[0001] The utility model relates to stage mechanical equipment, in particular to a stage lifting ladder. Background Art

[0002] For most of the existing lifting steps on the market in the stage, due to the balance arm and the connecting rod structure rotating in a vertical fan shape around the shaft end, the vertical fixed rotating shaft ends and the ends of a single electric lifting ladder will not be connected to the stage ground and the second-layer stage surface at the head and tail, resulting in the inability to connect into a continuous actor passage and having the potential safety hazard of stepping into the air. Content of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a stage lifting ladder, which expands the performance space and the running passage of the actors, provides convenience for the actors to run between the upper and lower layers, and can avoid the safety accidents of the actors stepping into the air during the performance, improves the safety and functionality of the stage equipment, increases the shocking effect of the immersive stage performance, and saves the stage construction cost.

[0004] The purpose of the utility model is realized by adopting the following technical scheme:

[0005] A stage lifting ladder includes a first-layer stage and a second-layer stage. The first-layer stage has a stage ground, and a stage foundation pit is opened on the stage ground. The second-layer stage has a stage surface. It is characterized in that it further includes a main lifting step and an electric stepping step.

[0006] The main lifting step is installed in the stage foundation pit. The main lifting step includes a main body ladder. The two ends of the main body ladder respectively form a first connection end and a second connection end. The main body ladder includes a plurality of movable step units. The main body ladder has a first form and a second form. The first form is the form in which a plurality of movable step units are sequentially connected to form a platform flush with the stage ground. The second form is the form in which a plurality of movable step units are sequentially connected to form a ladder.

[0007] The electric stepping step includes a support frame, an extended ladder and a third driving device. The extended ladder includes a plurality of fixed step units arranged on the top of the support frame. The end of the support frame is rotatably connected to the edge of the second-layer stage, so that the support frame can rotate relative to the second-layer stage. The third driving device is linked with the support frame. By providing power through the third driving device, the support frame is driven to rotate, driving the extended ladder to be connected with the second connection end of the main body ladder in the second form.

[0008] In an alternative embodiment, an electric pedal is further included. The electric pedal includes a pedal body and a first driving device. Opposite ends of the pedal body respectively form a first end and a second end. The first end is hinged to the edge of the stage foundation pit, so that the pedal body can rotate relative to the edge of the foundation pit. The first driving device is linked with the pedal body. By providing power through the first driving device, the pedal body is driven to rotate to be flush with the stage floor or rotate to be retracted into the stage foundation pit. When the pedal body rotates to be flush with the stage floor, the second end is connected to the first connecting end of the main body step in the second form.

[0009] In an alternative embodiment, the third driving device includes a third telescopic rod. The third telescopic rod has a fixed end and a telescopic end. The fixed end of the third telescopic rod is hinged to the second - floor stage, and the telescopic end of the third telescopic rod is hinged to the bottom of the support frame.

[0010] In an alternative embodiment, the first driving device includes a first telescopic rod. The first telescopic rod has a fixed end and a telescopic end. The fixed end of the first telescopic rod is hinged to the stage foundation pit, and the telescopic end of the first telescopic rod is hinged to the bottom of the pedal body.

[0011] In an alternative embodiment, the main lifting step further includes a guide frame structure and a second driving device. The end of the guide frame structure is rotatably connected to the stage foundation pit. The main body step is arranged on the top of the guide frame structure. The second driving device is linked with the guide frame structure. By providing power through the second driving device, the guide frame structure is driven to rotate relative to the stage foundation pit, so that the main body step arranged on the top of the guide frame structure can be switched between the first form and the second form.

[0012] In an alternative embodiment, the second driving device includes a second telescopic rod. The second telescopic rod has a fixed end and a telescopic end. The fixed end of the second telescopic rod is hinged to the stage foundation pit, and the telescopic end of the second telescopic rod is hinged to the bottom of the guide frame structure.

[0013] In an alternative embodiment, the second driving device is arranged close to the second connecting end.

[0014] In an alternative embodiment, a main control system is further included. The main control system has a PBC board. The PBC board is electrically connected to the first driving device, the second driving device, and the third driving device respectively. The opening and closing of the first driving device, the second driving device, and the third driving device are controlled through the main control system.

[0015] In an alternative embodiment, the guiding frame structure includes a first guiding frame and a second guiding frame. The first guiding frame is hinged to the stage foundation pit at a first hinge axis, and the second guiding frame is hinged to the stage foundation pit at a second hinge axis. At both ends of the bottom of the movable step unit, a first connecting member and a second connecting member are respectively fixed. One end of the first connecting member away from the movable step unit is hinged to the first guiding frame, and one end of the second connecting member away from the movable step unit is hinged to the second guiding frame.

[0016] In an alternative embodiment, the main lifting step further includes a support frame structure. The support frame structure includes a number of support units linearly arranged in the stage foundation pit. The bottom of the support unit is anchored to the bottom of the stage foundation pit, and the top of the support unit forms a support end. When the main ladder switches to the first form, the support end abuts against the guiding frame structure.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] The stage lifting ladder of the present utility model adds an electric pedal and an electric step ladder as extension mechanical devices at the fixed rotation shaft end and the end of the main lifting step. The main lifting step is the lifting step installed at the position of the stage foundation pit. After the main lifting step rises, the electric pedal fills the gap between the shaft end of the main lifting step and the stage ground. The electric step ladder extends the end of the main lifting step to realize the docking with the second-floor stage, forming a continuous actor performance passage ladder leading to the second floor, providing a running passage for the actors. The stage lifting ladder can ensure the flatness and safety of the stage when not in use, and the side-viewing electric step ladder is not exposed. When in use, the start and stop sequences of the electric pedals and the electric step ladder at both ends and the main lifting step are strictly programmed and interlocked by the main control system to ensure safety. It solves the problem that the head and tail of the stage lifting ladder are not connected to the stage ground and the second-floor stage surface after rising. The length of the stage lifting ladder can be extended to the second floor through the combination of a number of movable step units, expanding the actor performance space and the running passage, providing convenience for the actors to run between the upper and lower floors, and can avoid safety accidents such as actors stepping into the air during the performance, improving the safety and functionality of the stage equipment, increasing the shocking effect of the immersive stage performance, and saving the stage construction cost. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the stage lifting ladder in the second form in Embodiment 1;

[0020] Figure 2 It is a partial enlarged view of the stage lifting ladder in Embodiment 1;

[0021] Figure 3Structural schematic diagram of the stage lifting ladder in the first form of Embodiment 1.

[0022] In the figure: 10, electric pedal; 11, pedal body; 12, first driving device; 20, main lifting step; 21, main body step; 211, first connection end; 212, second connection end; 213, movable step unit; 22, guide frame structure; 221, first guide frame; 222, second guide frame; 223, first connecting piece; 224, second connecting piece; 23, second driving device; 24, supporting unit; 30, electric tread step; 31, support frame; 32, extended ladder; 321, fixed step unit; 33, third driving device. Detailed implementation manners

[0023] Next, in combination with the accompanying drawings and specific implementation manners, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment can be purchased from the market. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.

[0024] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically and precisely defined.

[0025] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "connected", "communicated", "connected" should be understood in a broad sense. For example, it can be a fixed connection, or can be connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0026] In the description and claims of this application and the above-mentioned drawings, terms such as "first" and "second" are used to distinguish similar objects and do not necessarily describe a specific order or sequence. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily limit to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0027] Embodiment 1:

[0028] Please refer to Figures 1-3 As shown, the stage of this embodiment includes a first-floor stage and a second-floor stage. The first-floor stage has a stage floor, and a downwardly sunken stage foundation pit is provided on the stage floor. The stage foundation pit is mainly used to install the stage lifting ladder; the second-floor stage has a stage surface.

[0029] The stage lifting ladder of this embodiment further includes an electric pedal 10, a main lifting step 20 and an electric tread step 30. Among them, the function of the main lifting step 20 is to serve as the lifting step at the position of the stage foundation pit; the function of the electric pedal 10 is to fill the empty gap between the shaft end of the main lifting step 20 and the stage floor after the main lifting step 20 rises; the function of the electric tread step 30 is to extend the end of the main lifting step 20 and connect with the second-floor stage to form a continuous actor performance passage ladder leading to the second floor, providing a running passage for the actors.

[0030] Specifically, the main lifting step 20 is installed in the stage foundation pit. The main lifting step 20 includes a main body ladder 21. The two ends of the main body ladder 21 respectively form a first connection end 211 and a second connection end 212; the main body ladder 21 includes a number of movable step units 213; the main body ladder 21 has a first form and a second form. The first form is the form in which a number of movable step units 213 are connected in sequence to form a platform flush with the stage floor, and the second form is the form in which a number of movable step units 213 are connected in sequence to form a ladder.

[0031] The electric tread step 30 includes a support frame 31, an extended ladder 32 and a third driving device 33. The extended ladder 32 includes a number of fixed step units 321 arranged on the top of the support frame 31; the end of the support frame 31 is rotatably connected to the edge of the second-floor stage, so that the support frame 31 can rotate relative to the second-floor stage; the third driving device 33 is linked with the support frame 31, and through the power provided by the third driving device 33, the support frame 31 is driven to rotate, driving the extended ladder 32 to connect with the second connection end 212 of the main body ladder 21 in the second form.

[0032] The electric pedal 10 includes a pedal body 11 and a first driving device 12; opposite ends of the pedal body 11 respectively form a first end and a second end; the first end is hinged to the edge of the stage foundation pit, so that the pedal body 11 can rotate relative to the edge of the foundation pit; the first driving device 12 is linked with the pedal body 11; through the power provided by the first driving device 12, the pedal body 11 is driven to rotate to be flush with the stage floor or rotate to be retracted into the stage foundation pit; when the pedal body 11 rotates to be flush with the stage floor, the second end is connected to the first connection end 211 of the main ladder 21 in the second form.

[0033] In the initial state, the main ladder 21 of the main lifting ladder 20 is in the first form, that is, a number of movable ladder units 213 are sequentially connected to form a platform flush with the stage floor; at this time, the pedal body 11 of the electric pedal 10 is retracted into the stage foundation pit under the drive of the first driving device 12; the electric step ladder 30 rotates to be close to the second floor stage for hiding under the drive of the third driving device 33; thus ensuring the flatness and safety of the stage, and the electric step ladder 30 for side viewing does not show through. When in use, the electric step ladder 30 rotates to a preset position under the drive of the third driving device 33, and the main lifting ladder 20 switches to the second form, that is, a number of movable ladder units 213 are sequentially connected to form a ladder, and finally the electric pedal 10 rises to be flush with the stage floor; the closing sequence is opposite. The stage lifting ladder in this embodiment controls the electric pedal 10, the main lifting ladder 20, and the electric step ladder 30 through a control system, and the start and closing sequences of the three parts are strictly programmed and interlocked to ensure safety. By respectively arranging the electric pedal 10 and the electric step ladder 30 at both ends of the main lifting ladder 20, the problem that the head and tail of the existing lifting ladder are not connected to the stage floor and the second floor stage surface after rising is solved. The length of the lifting ladder can be extended to the second floor through the combination mode of a number of movable ladder units 213, expanding the performance space and running channels for the actors, providing convenience for the actors to run between the upper and lower floors, and avoiding safety accidents such as actors stepping on empty during the performance, improving the safety and functionality of the stage equipment, increasing the shocking effect of the immersive stage performance, and saving the stage construction cost.

[0034] Specifically, the main lifting ladder 20 further includes a guiding frame structure 22 and a second driving device 23; the end of the guiding frame structure 22 is rotatably connected to the stage foundation pit; the main ladder 21 is arranged on the top of the guiding frame structure 22; the second driving device 23 is linked with the guiding frame structure 22, and through the power provided by the second driving device 23, the guiding frame structure 22 is driven to rotate relative to the stage foundation pit, so that the main ladder 21 arranged on the top of the guiding frame structure 22 switches between the first form and the second form.

[0035] The guide frame structure 22 includes a first guide frame 221 and a second guide frame 222. The first guide frame 221 and the stage foundation pit are hinged to each other at a first hinge axis, and the second guide frame 222 and the stage foundation pit are hinged to each other at a second hinge axis. At both ends of the bottom of the movable step unit 213, a first connecting member 223 and a second connecting member 224 are respectively fixed. One end of the first connecting member 223 away from the movable step unit 213 is hinged to the first guide frame 221, and one end of the second connecting member 224 away from the movable step unit 213 is hinged to the second guide frame 222. Connecting rods are also provided at the hinge joints between the first connecting member 223 and the first guide frame 221 and between the second connecting member 224 and the second guide frame 222. Thus, a double crank mechanism is formed, enabling the movable step unit 213 to maintain a horizontal state under the drive of the guide frame structure 22, facilitating the passage of actors.

[0036] The third driving device 33 of this embodiment includes a third telescopic rod. The third telescopic rod has a fixed end and a telescopic end. The fixed end of the third telescopic rod is hinged to the second - floor stage, and the telescopic end of the third telescopic rod is hinged to the bottom of the support frame 31. The first driving device 12 includes a first telescopic rod. The first telescopic rod has a fixed end and a telescopic end. The fixed end of the first telescopic rod is hinged to the stage foundation pit, and the telescopic end of the first telescopic rod is hinged to the bottom of the pedal body 11.

[0037] The first driving device 12 includes a first telescopic rod. The first telescopic rod has a fixed end and a telescopic end. The fixed end of the first telescopic rod is hinged to the stage foundation pit, and the telescopic end of the first telescopic rod is hinged to the bottom of the pedal body 11.

[0038] The second driving device 23 includes a second telescopic rod. The second telescopic rod has a fixed end and a telescopic end. The fixed end of the second telescopic rod is hinged to the stage foundation pit, and the telescopic end of the second telescopic rod is hinged to the bottom of the guide frame structure 22. The second driving device 23 is arranged close to the second connection end 212, which is beneficial for the guide frame structure 22, the stage foundation pit, and the second driving device 23 to form a triangular truss - type structure, improving the stability of the main lifting steps 20.

[0039] The first telescopic rod, the second telescopic rod, and the third telescopic rod of this embodiment can all be realized by electric hydraulic cylinders, providing strong thrust in sequence, and having the characteristics of compact structure, quiet operation, and precise control.

[0040] The stage lifting ladder included in this embodiment further includes a main control system, which has a PBC board. The PBC board is electrically connected to the first driving device 12, the second driving device 23, and the third driving device 33 respectively. The main control system controls the opening and closing of the first driving device 12, the second driving device 23, and the third driving device 33, so as to raise the electric pedal 10, switch the main lifting step 20 to the second form, and push out the electric stepping step 30 to achieve docking in the air, combining into a continuous and complete lifting step. The start and stop sequences are strictly programmed and interlocked to ensure safety.

[0041] Further, the main lifting step 20 further includes a support frame structure; the support frame structure includes a number of support units 24 arranged linearly in the stage foundation pit; the bottom of the support unit 24 is anchored to the bottom of the stage foundation pit, and the top of the support unit 24 forms a support end; when the main body step 21 switches to the first form, the support end abuts against the guide frame structure 22 to limit the further rotation of the guide frame structure 22, thereby maintaining the flatness of the main body step 21 in the first form, improving stability, and preventing the stage from collapsing and shaking.

[0042] The stage lifting ladder of this embodiment adds an electric pedal 10 and an electric stepping step 30 at the fixed rotation shaft end (the first connection end 211) and the end (the second connection end 212) of the main lifting step 20 as extension mechanical devices. When not in use, it ensures the flatness and safety of the stage, and the electric stepping step 30 for side viewing does not show through; when in use, the start and stop sequences of the electric pedals 10 and the electric stepping steps 30 at both ends and the main lifting step 20 are strictly programmed and interlocked by the main control system to ensure safety. It solves the problem that the head and tail of the stage lifting ladder do not connect with the stage ground and the second-floor stage surface after rising. The length of the stage lifting ladder can be extended to the second floor through the combination of a number of movable step units 213, expanding the performance space and running channels for the actors, providing convenience for the actors to run between the upper and lower floors, and avoiding safety accidents such as actors stepping into the air during the performance, improving the safety and functionality of the stage equipment, increasing the shocking effect of the immersive stage performance, and saving the stage construction cost. Although only some components and embodiments of the present application have been illustrated and described, many modifications and changes can be conceived by those skilled in the art without actually departing from the scope and spirit of the claims (for example, changes in the size, dimensions, structure, shape and ratio, installation arrangement, material use, color, orientation, etc. of each component).

[0043] Finally, it should be noted that the above embodiments are only preferred embodiments of the present utility model, and cannot be used to limit the scope of protection of the present utility model. Any non-substantial changes and substitutions made by those skilled in the art based on the present utility model fall within the scope of protection required by the present utility model.

Claims

1. A stage lift ladder, comprising a first-floor stage and a second-floor stage, wherein the first-floor stage has a stage floor, a stage foundation pit is provided on the stage floor, and the second-floor stage has a stage tabletop; characterized in that: It also includes main lift steps and electric step steps; The main lifting step is installed in the stage foundation pit, and the main lifting step includes a main body step, and the two ends of the main body step form a first connection end and a second connection end respectively; the main body step includes a plurality of movable step units; the main body step has a first form and a second form, the first form is a form in which a plurality of movable step units are connected in sequence to form a platform flush with the stage ground, and the second form is a form in which a plurality of movable step units are connected in sequence to form a ladder; The electric step ladder includes a support frame, an extended ladder and a third driving device. The extended ladder includes a plurality of fixed step units arranged on the top of the support frame; the end of the support frame is rotatably connected to the edge of the second stage, so that the support frame can rotate relative to the second stage; the third driving device is linked to the support frame, and the power is provided by the third driving device to drive the support frame to rotate, thereby driving the extended ladder to connect with the second connecting end of the second form of the main ladder.

2. A stage lifting ladder according to claim 1, characterized in that: It also includes an electric pedal, which includes a pedal body and a first driving device; the two opposite ends of the pedal body respectively form a first end and a second end; the first end is hinged to the edge of the stage pit, so that the pedal body can rotate relative to the edge of the pit; the first driving device is linked to the pedal body; the first driving device provides power to drive the pedal body to rotate until it is flush with the stage floor, or rotate to retract into the stage pit; when the pedal body rotates to be flush with the stage floor, the second end is connected with the first connecting end of the main step of the second form.

3. A stage lifting ladder according to claim 2, characterized in that: The third driving device comprises a third telescopic rod, the third telescopic rod has a fixed end and a telescopic end, the fixed end of the third telescopic rod is hinged to the second-layer stage, and the telescopic end of the third telescopic rod is hinged to the bottom of the support frame.

4. A stage lifting ladder according to claim 3, characterized in that: The first driving device includes a first telescopic rod, the first telescopic rod has a fixed end and a telescopic end, the fixed end of the first telescopic rod is hinged to the stage pit, and the telescopic end of the first telescopic rod is hinged to the bottom of the pedal body.

5. A stage lifting ladder according to claim 4, characterized in that: The main lifting step also includes a guide frame structure and a second driving device; the end of the guide frame structure is rotatably connected to the stage pit; the main step is arranged at the top of the guide frame structure; the second driving device is linked with the guide frame structure, and the second driving device provides power to drive the guide frame structure to rotate relative to the stage pit, so that the main step arranged at the top of the guide frame structure switches between the first form and the second form.

6. A stage lifting ladder according to claim 5, characterized in that: The second driving device includes a second telescopic rod, which has a fixed end and a telescopic end. The fixed end of the second telescopic rod is hinged to the stage pit, and the telescopic end of the second telescopic rod is hinged to the bottom of the guide frame structure.

7. A stage lifting ladder according to claim 5, characterized in that: The second driving device is disposed close to the second connecting end.

8. A stage lifting ladder according to claim 5, characterized in that: It also includes a main control system, which has a PBC board. The PBC board is electrically connected to the first drive device, the second drive device, and the third drive device respectively, and the opening and closing of the first drive device, the second drive device, and the third drive device are controlled by the main control system.

9. A stage lifting ladder according to claim 5, characterized in that: The guide frame structure includes a first guide frame and a second guide frame, the first guide frame and the stage pit are hinged at a first hinge axis, and the second guide frame and the stage pit are hinged at a second hinge axis; the first connecting member and the second connecting member are respectively fixed at both ends of the bottom of the movable step unit, the end of the first connecting member away from the movable step unit is hinged to the first guide frame, and the end of the second connecting member away from the movable step unit is hinged to the second guide frame.

10. The stage lifting ladder according to claim 5, characterized in that: The main lifting step also includes a support frame structure; the support frame structure includes a plurality of support units linearly arranged in the stage pit; the bottom of the support unit is anchored to the bottom of the stage pit, and the top of the support unit forms a support end; when the main step switches to the first form, the support end and the guide frame structure are mutually supported.

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