A telescopic translation device for live-action performances

Abstract

This utility model discloses a telescopic and translational device for live-action performances, comprising: a fixed mechanism, a telescopic mechanism, a drive mechanism, and a protective mechanism; the fixed mechanism includes a fixed mesh frame and a fixed steel plate, and a channel steel guide rail is fixedly mounted on the fixed mechanism; the telescopic mechanism is slidably disposed above the fixed mechanism, and includes a telescopic mesh frame and an anti-slip steel plate, and is equipped with traveling wheels embedded in the channel steel guide rail; the drive mechanism includes a servo motor, a reducer, and a gear; the telescopic mechanism is fixedly equipped with a rack, and the gear is mounted on the output shaft of the reducer and meshes with the rack for transmission; the protective mechanism includes guardrails fixed on both sides of the telescopic mechanism. This utility model achieves high-precision, slip-free, and stable telescopic movement through servo motor and rack and pinion transmission, effectively solving the problems of inaccurate positioning and wobbling in traditional transmission methods.

Description

Technical Field

[0001] This utility model relates to the field of stage machinery technology, and in particular to a telescopic translation device for live performances. Background Technology

[0002] In the field of live-action performances and stage shows, it is often necessary to move actors quickly, accurately, and smoothly to designated positions. Currently common personnel transport equipment, such as lifting stages, fixed platforms, and track-based moving devices, all have significant shortcomings. Lifting stages cannot achieve horizontal extension and retraction; fixed platforms lack flexibility; and traditional track-based moving devices mostly use ordinary motors with belt or chain drives, resulting in large transmission gaps, slippage, and inaccurate positioning, leading to poor operational stability. Furthermore, these devices generally lack effective safety protection designs, such as insufficient guardrail height and the absence of follow-up safety suspension points, posing a risk of falls for actors. In addition, the methods for actors to enter and exit the platform are often inconvenient and pose safety hazards. Therefore, there is an urgent need for an actor telescopic and translating device that combines high stability, high precision, high safety, and ease of operation to meet the high standards required by the modern performing arts industry. Utility Model Content

[0003] The purpose of this invention is to provide a telescopic translation device for live-action performances to solve the above-mentioned problems.

[0004] According to one aspect of this utility model, a telescopic and translational device for live-action performances is provided, comprising: a fixing mechanism, a telescopic mechanism, a driving mechanism, and a protective mechanism; the fixing mechanism includes a fixed mesh frame welded from structural steel and a fixed steel plate laid on the upper surface of the fixed mesh frame, and channel steel guide rails are fixedly provided on both sides of the fixing mechanism along its length direction; the telescopic mechanism is slidably disposed above the fixing mechanism, and the telescopic mechanism includes a telescopic mesh frame welded from structural steel and an anti-slip steel plate laid on the upper surface of the telescopic mesh frame, and traveling wheels are provided on both sides of the bottom of the telescopic mechanism, the traveling wheels being embedded in the channel steel guide rails; the driving mechanism includes a servo motor, a reducer connected to the output end of the servo motor, and a gear; a rack is fixedly provided at the bottom of the telescopic mechanism along the telescopic direction, the gear being mounted on the output shaft of the reducer and meshing with the rack for transmission; the protective mechanism includes guardrails fixed on both sides of the telescopic mechanism.

[0005] In some embodiments, two sets of support wheels are symmetrically arranged at the bottom of the fixed grid frame near the end of the telescopic mechanism extending in the direction of extension, and the support wheels are in movable contact with the telescopic grid frame.

[0006] In some embodiments, the protective mechanism further includes a safety rail and a roller; the safety rail is fixedly installed on the top of the guardrail, and the roller is slidably disposed within the safety rail.

[0007] In some embodiments, the protective mechanism further includes a one-way door disposed on the side of the telescopic mechanism. The one-way door is connected to the guardrail by a hinge and can only be opened to the inside of the telescopic mechanism. The bottom of the one-way door is provided with a mechanical floor lock for locking the one-way door.

[0008] In some embodiments, the servo motor is an AC servo motor with a rated power of 0.4kW and a rated speed of 3000r / min; the reducer is a planetary gear reducer with a reduction ratio of 1:50.

[0009] In some embodiments, the gear has a module of 5 and a number of teeth of 10; the rack has a module of 5 and a number of teeth of 360.

[0010] In some embodiments, the safety rail has a C-shaped structure with its opening facing the inside of the telescopic mechanism; a deep groove ball bearing is installed inside the wheel.

[0011] In some embodiments, the guardrail is 1.3m high and is made of welded vertical and horizontal bars. The vertical bars are made of 40*40*2mm square tubing with a spacing of 980mm.

[0012] In some embodiments, a control system is also included, which is electrically connected to the servo motor for controlling the telescopic stroke of the telescopic mechanism to be 1.8m, and is equipped with a limit switch for extreme position protection.

[0013] Compared with the prior art, the beneficial effects of this application are as follows: This invention achieves high-precision, slip-free, and smooth telescopic movement through a servo motor and rack and pinion transmission, effectively solving the problems of inaccurate positioning and operational swaying inherent in traditional transmission methods. The use of a rigid space frame and steel plate composite structure with auxiliary support wheels significantly enhances the overall stability and deformation resistance of the device under load. Combined with a reasonably high guardrail and a top-sliding safety rail system, it provides performers with dual safety guarantees: static protection and dynamic follow-up protection. The design of a dedicated one-way door and mechanical locking structure greatly simplifies the performers' entry and exit process while ensuring operational safety. With the intelligent control system and travel protection switches, precise control and operational safety during the telescopic process are achieved, comprehensively improving the reliability, safety, and practicality of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the bottom structure of this utility model; Figure 3 This is a schematic diagram of the telescopic mechanism of this utility model; Figure 4 This is a schematic diagram of the fixing mechanism of this utility model. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] refer to Figures 1 to 4 This application provides a telescopic and translational device for live-action performances, comprising: a fixing mechanism, a telescopic mechanism, a driving mechanism, and a protective mechanism; the fixing mechanism includes a fixed mesh frame 1 welded from structural steel and a fixed steel plate 2 laid on the upper surface of the fixed mesh frame 1, and channel steel guide rails 3 fixed on both sides of the fixing mechanism along its length direction; the telescopic mechanism is slidably disposed above the fixing mechanism, and the telescopic mechanism includes a telescopic mesh frame 4 welded from structural steel and an anti-slip steel plate 5 laid on the upper surface of the telescopic mesh frame 4, and traveling wheels 6 are provided on both sides of the bottom of the telescopic mechanism, the traveling wheels 6 being embedded in the channel steel guide rails 3; the driving mechanism includes a servo motor 7, a reducer connected to the output end of the servo motor 7, and a gear 8; a rack 9 is fixed on the bottom of the telescopic mechanism along the telescopic direction, the gear 8 being mounted on the output shaft of the reducer and meshing with the rack 9 for transmission; the protective mechanism includes guardrails 10 fixed on both sides of the telescopic mechanism.

[0017] The composite steel plate structure design of the fixed mechanism and the telescopic mechanism provides the entire device with extremely high basic rigidity and load-bearing capacity; the cooperation between the channel steel guide rail 3 and the traveling wheel 6 forms a precise and reliable guiding motion pair, ensuring the smoothness of the telescopic process; the combination of the servo motor 7 and the gear 8 and rack 9 transmission mechanism fundamentally solves the problems of slippage, gap and inaccurate positioning of traditional transmission methods (such as chains and belts), and realizes high-precision reciprocating translational motion; the setting of the protective railing 10 provides the most basic safety guarantee for the actors and effectively prevents lateral falls.

[0018] In some embodiments, two sets of support wheels 11 are symmetrically arranged at the bottom of the fixed grid frame 1 near the end of the telescopic mechanism extending in the direction of extension. The support wheels 11 are in movable contact with the telescopic grid frame 4. By symmetrically arranging support wheels 11 at the bottom of the fixed grid frame 1, effective auxiliary support is provided for the extended telescopic mechanism, significantly reducing sagging deformation caused by the self-weight and load of the cantilever structure, ensuring the overall rigidity and operational stability of the device during the entire extension and retraction process, and avoiding jamming or shaking caused by front-end settlement.

[0019] In some embodiments, the protective mechanism further includes a safety rail 12 and a sliding wheel 13; the safety rail 12 is fixedly installed on the top of the guardrail 10, and the sliding wheel 13 is slidably disposed within the safety rail 12. The addition of the safety rail 12 and sliding wheel 13 to the top of the guardrail 10, in conjunction with the safety locks on the performer, forms a unique "dynamic following" safety protection mechanism. This design allows the performer to move limitedly on the platform while the safety lock connection point slides accordingly, maintaining an effective protective state at all times. This provides the performer with continuous active fall protection far exceeding that of a static guardrail 10, significantly improving the safety level.

[0020] In some embodiments, the protective mechanism further includes a one-way door 14 disposed on the side of the telescopic mechanism. The one-way door 14 is connected to the guardrail 10 via a hinge and can only be opened inwards from the telescopic mechanism. A mechanical ground lock is provided at the bottom of the one-way door 14 for locking it. This specially designed one-way door structure, combined with the mechanical ground lock, scientifically distinguishes between the "safe zone" and the "unsafe zone." Its inward-opening characteristic fundamentally prevents the risk of falls caused by accidental opening of the door from the outside of the platform. The ground lock ensures that the door will not be accidentally shaken open during platform operation, guaranteeing operational safety and providing performers with a convenient and reliable dedicated entry and exit passage.

[0021] In some embodiments, the servo motor 7 is an AC servo motor with a rated power of 0.4kW and a rated speed of 3000r / min; the reducer is a planetary gear reducer with a reduction ratio of 1:50. The use of an AC servo motor with specific power and speed, combined with a planetary gear reducer with a large reduction ratio, provides the system with low-speed, high-torque output characteristics, ensuring extremely smooth start-up and operation without crawling. Simultaneously, the high-precision encoder built into the servo motor 7 enables closed-loop control, giving it precise speed and position control capabilities, which is the core power guarantee for achieving high repeatability positioning accuracy of the device.

[0022] In some embodiments, the gear 8 has a module of 5 and 10 teeth; the rack 9 has a module of 5 and 360 teeth. Specific selection and matching of the module and number of teeth of the gear 8 and the rack 9 optimizes the meshing characteristics of the transmission system. This parameter combination ensures smooth transmission, low noise, and small backlash while meeting transmission strength and torque requirements, making it a key design point for achieving precise, smooth, and reliable telescopic motion.

[0023] In some embodiments, the safety rail 12 has a C-shaped structure, with its opening facing the inside of the telescopic mechanism; a deep groove ball bearing is installed inside the roller 13. The C-shaped safety rail 12 provides a well-contained sliding track for the roller 13, preventing it from derailing. The deep groove ball bearing installed inside the roller 13 significantly reduces sliding friction resistance, allowing the safety rope on the performer to slide easily and smoothly with the performer's movement, ensuring that the safety protection function does not fail due to jamming, thus improving the reliability of the safety system and the user experience.

[0024] In some embodiments, the guardrail 10 is 1.3m high and is constructed by welding vertical and horizontal bars. The vertical bars are made of 40*40*2mm square tubing, spaced 980mm apart. This quantitative design of the guardrail 10's height, material specifications, and spacing ensures that it meets high-strength structural requirements while fully complying with ergonomics and safety regulations. The 1.3-meter height effectively blocks most shifts in the center of gravity, preventing accidental climbing. The specific square tubing material and 980mm spacing provide optimal structural strength and protective effect while maintaining unobstructed visibility.

[0025] In some embodiments, a control system is also included, electrically connected to the servo motor 7, for controlling the telescopic mechanism's extension stroke to 1.8m, and equipped with limit switches for extreme position protection. The integrated control system and the setting of a specific extension stroke enable automated and intelligent operation of the device, allowing operators to precisely control the platform's start, stop, and positioning, greatly improving operational convenience and the accuracy of the performance flow. The limit switches provide hardware-level extreme position protection for the device's mechanical movement, forming a double safety net with the electrical control system, effectively preventing mechanical impact and damage caused by program errors or misoperation, fundamentally improving safety and reliability.

[0026] The specific operation of this device begins with the actor opening the mechanical lock from the outside and opening the one-way door 14 inward to enter the telescopic platform. The safety lock is then connected to the sliding wheel 13 on the top rail of the guardrail 10, and the door is locked. Upon receiving the command, the control system starts the servo motor 7, which increases the torque through a planetary reducer and drives the gear 8 to rotate. The gear 8 meshes with the rack 9 fixed to the bottom of the telescopic mechanism, precisely pushing the telescopic mechanism to extend smoothly along the channel steel guide rails 3 on both sides of the fixed mechanism. During this process, the bottom traveling wheels 6 provide guidance, while the end support wheels 11 prevent the cantilever from sagging. The servo motor 7 has a built-in encoder that monitors the position in real time, controls the telescopic stroke in conjunction with a preset program, and triggers a limit switch at the endpoint to achieve dual precise positioning and safety limits. After completing the task, the servo motor 7 reverses, driving the telescopic mechanism to smoothly retract to its initial position in the same manner. Throughout the entire movement, the sliding wheel 13 can slide freely along the C-shaped safety rail 12 as the actor moves, forming a dynamic and static all-around protection system with the fixed guardrail 10 to ensure the actor's safety.

[0027] This invention achieves high-precision, slip-free, and smooth telescopic movement through the transmission of a servo motor 7 and gears 8 and racks 9, effectively solving the problems of inaccurate positioning and operational swaying inherent in traditional transmission methods. The use of a rigid space frame and steel plate composite structure, coupled with auxiliary support wheels 11, significantly enhances the overall stability and deformation resistance of the device under load. The combination of a reasonably high guardrail 10 and a top-sliding safety rail 12 system provides performers with dual safety guarantees: static protection and dynamic follow-up protection. The design of a dedicated one-way door 14 and a mechanical locking structure greatly simplifies the performers' entry and exit process while ensuring operational safety. With the intelligent control system and travel protection switches, precise control and operational safety during the telescopic process are achieved, comprehensively improving the reliability, safety, and practicality of the equipment.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A telescopic translation device for live-action performances, characterized in that, include: Fixed mechanism, telescopic mechanism, drive mechanism, and protective mechanism; The fixing mechanism includes a fixing grid frame welded from structural steel and a fixing steel plate laid on the upper surface of the fixing grid frame. Channel steel guide rails are fixed on both sides of the fixing mechanism along its length. The telescopic mechanism is slidably disposed above the fixed mechanism. The telescopic mechanism includes a telescopic mesh frame welded from structural steel and an anti-slip steel plate laid on the upper surface of the telescopic mesh frame. The bottom two sides of the telescopic mechanism are provided with traveling wheels, which are embedded in the channel steel guide rail. The drive mechanism includes a servo motor, a reducer connected to the output end of the servo motor, and a gear; the bottom of the telescopic mechanism is fixed with a rack along the telescopic direction, and the gear is mounted on the output shaft of the reducer and meshes with the rack for transmission. The protective mechanism includes guardrails fixed to both sides of the telescopic mechanism.

2. The telescopic translation device for live-action performances according to claim 1, characterized in that, Two sets of support wheels are symmetrically arranged at the bottom of the fixed grid frame near the end of the telescopic mechanism extending in the direction of extension, and the support wheels are in active contact with the telescopic grid frame.

3. The telescopic translation device for live-action performances according to claim 1, characterized in that, The protective mechanism also includes a safety rail and rollers; the safety rail is fixedly installed on the top of the guardrail, and the rollers are slidably disposed within the safety rail.

4. The telescopic translation device for live-action performances according to claim 1, characterized in that, The protective mechanism also includes a one-way door located on the side of the telescopic mechanism. The one-way door is connected to the guardrail by a hinge and can only be opened to the inside of the telescopic mechanism. The bottom of the one-way door is provided with a mechanical floor lock for locking the one-way door.

5. The telescopic translation device for live-action performances according to claim 1, characterized in that, The servo motor is an AC servo motor with a rated power of 0.4kW and a rated speed of 3000r / min; the reducer is a planetary gear reducer with a reduction ratio of 1:

50.

6. The telescopic translation device for live-action performances according to claim 1, characterized in that, The gear has a module of 5 and 10 teeth; the rack has a module of 5 and 360 teeth.

7. The telescopic translation device for live-action performances according to claim 3, characterized in that, The safety rail has a C-shaped structure with its opening facing the inside of the telescopic mechanism; a deep groove ball bearing is installed inside the wheel.

8. The telescopic translation device for live-action performances according to claim 1, characterized in that, The guardrail is 1.3m high and is made of vertical and horizontal bars welded together. The vertical bars are made of 40*40*2mm square tubing with a spacing of 980mm.

9. The telescopic translation device for live-action performances according to claim 1, characterized in that, It also includes a control system, which is electrically connected to the servo motor, for controlling the telescopic mechanism to have a telescopic stroke of 1.8m, and is equipped with a limit switch for extreme position protection.

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