Double-cable stage property elevator

Abstract

The utility model relates to a double-cable stage property lifter, and belongs to the technical field of stage property equipment. The double-cable stage property elevator comprises a transmission box, a turbine, a worm, a motor and two coaxially-arranged winding roll assemblies, the turbine and the worm are installed in the transmission box, installation holes for fixing the worm and the turbine are formed in the transmission box, the turbine is meshed with the worm, and the motor is arranged in the transmission box. The worm is rotationally connected with the motor, and the two winding roll assemblies are rotationally connected with the turbine. According to the double-cable stage property lifting machine, the stability during property lifting is improved through the two winding roll assemblies, power-off self-locking is achieved through the self-locking function of the worm gear and the worm, and then the safety coefficient is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stage prop equipment, in particular to a double-cable stage prop elevator. Background Art

[0002] To achieve specific visual effects, some entertainment venues, performance venues, or exhibition booths utilize liftable lamps, displays, and props. To achieve this functionality, existing technologies typically require a small prop lift for lifting these props. Existing prop lifts primarily consist of a chassis, a reel mechanism, and a power mechanism located within the chassis. The reel mechanism primarily consists of a take-up drum, while the power mechanism primarily consists of a motor. The take-up drum is connected to a load-bearing cable, which integrates power and signal cables. One end of the load-bearing cable, connected to the take-up drum, requires connection to a power source and processor. The other end of the cable is equipped with a hook for securing the lamp or prop, and has extended power and signal connectors. During operation, the hook secures the lamp, display, or prop, and the power and signal connectors are then plugged into the lamp, display, or prop. The motor drives the take-up drum to raise and lower the lamp, display, or prop.

[0003] Existing stage prop lifters use a single cable to lift props. During the lifting process, the cable is prone to shaking and has poor stability. Utility Model Content

[0004] In order to overcome the problems existing in the related technology, the utility model provides a dual-cable stage prop lift, which improves the stability when lifting props through two winding reel assemblies, and utilizes the self-locking function of the worm gear to achieve self-locking when power is off, thereby improving the safety factor.

[0005] The utility model provides a dual-cable stage prop elevator, comprising a transmission box, a turbine, a worm, a motor and two coaxially arranged winding drum assemblies, wherein the turbine and the worm are installed inside the transmission box, and the transmission box is provided with mounting holes for fixing the worm and the turbine, the turbine and the worm are engaged, the worm is rotationally connected to the motor, and the two winding drum assemblies are rotationally connected to the turbine respectively.

[0006] In some embodiments, the cable reel assembly includes a first support rod, a second support rod, a cable reel for winding the cable, a driven pulley, a synchronous belt, and a driving pulley;

[0007] The first end face of the wire drum is rotatably connected to the first support rod through a bearing, and the second end face is connected to the driven wheel, and the driven wheel is rotatably connected to the second support rod through a bearing; the driving wheel is connected to the rotating shaft of the turbine, and the driving wheel and the driven wheel are rotatably connected through the synchronous belt.

[0008] In some embodiments, the cable reel assembly further includes two oppositely disposed guide wheels, the guide wheels being located between the first support rod and the second support rod, and a guide position for the cable is formed between the two guide wheels.

[0009] In some embodiments, the cable drum includes a first turntable, a second turntable and a drum, one end of the cable is fixed to the outer circumference of the drum, and the first turntable and the second turntable are respectively arranged at the axial ends of the drum.

[0010] In some embodiments, a diameter of the cable is equal to a distance between the first turntable and the second turntable.

[0011] In some embodiments, both axial ends of the worm are connected to the motor shaft of the motor through couplings, the motor is fixed on the outer surface of the transmission case, and the motor is a stepping motor.

[0012] In some embodiments, a sling is further provided at the end of the cable, and the sling is used to fix the stage props.

[0013] In some embodiments, a shell is further included, which includes a top plate, side plates and a bottom plate. The transmission box and the cable reel assembly are mounted on the bottom plate. A switching power supply is also provided on the bottom plate, and a handle is provided on the top plate.

[0014] In some embodiments, an energy storage device is further included. The energy storage device is disposed in the housing and is connected to the motor and the switching power supply. A control module is also disposed in the switching power supply.

[0015] In some embodiments, the housing is further provided with a power detection and display device connected to the energy storage device; the power detection and display device is provided with a charging socket.

[0016] The technical solution provided by the utility model may have the following beneficial effects:

[0017] (1) The dual-cable stage prop elevator provided by the utility model utilizes the self-locking function of the worm gear to achieve self-locking when power is off, eliminating the need for an additional self-locking structure, and has the characteristics of simple structure and reasonable layout.

[0018] (2) The coaxially arranged cable reel assembly realizes synchronous transmission through the motor, worm and turbine, which improves the transmission stability of the cable during the reeling and releasing process, and avoids the props from shaking during lifting, which affects the normal use of the props. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0020] Figure 1 This is a schematic structural diagram of a dual-cable stage prop elevator according to an embodiment of the present invention;

[0021] Figure 2 This is an exploded schematic diagram of a dual-cable stage prop elevator according to an embodiment of the present invention;

[0022] Figure 3 This is another structural schematic diagram of a dual-cable stage prop elevator according to an embodiment of the present utility model;

[0023] Figure 4 1 is a schematic structural diagram of a cable reel assembly according to an embodiment of the present invention;

[0024] Figure 5 It is a schematic diagram of the overall structure of a dual-cable stage prop elevator shown in an embodiment of the present utility model.

[0025] Reference numerals:

[0026] 1. Transmission box; 2. Turbine; 3. Worm; 4. Motor; 41. Coupling; 5. Cable reel assembly; 50. Cable; 51. First support rod; 52. Second support rod; 53. Cable reel; 531. First turntable; 532. Second turntable; 533. Reel; 54. Driven pulley; 55. Synchronous belt; 56. Driving pulley; 57. Guide pulley; 6. Hoist; 7. Housing; 8. Switching power supply; 9. Handle. DETAILED DESCRIPTION

[0027] The following describes preferred embodiments of the present invention in more detail with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] The technical solutions of the embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0031] like Figures 1 to 5 As shown, an embodiment of the present invention provides a dual-cable stage prop lift, comprising a transmission box 1, a turbine 2, a worm 3, a motor 4 and two coaxially arranged winding drum assemblies 5, the turbine 2 and the worm 3 being installed inside the transmission box 1, the transmission box 1 being provided with mounting holes for fixing the worm 3 and the turbine 2, the turbine 2 and the worm 3 being engaged, the worm 3 being rotationally connected to the motor 4, and the two winding drum assemblies 5 being rotationally connected to the turbine 2 respectively.

[0032] The transmission box 1, the turbine 2, the worm 3, the motor 4 and two coaxially arranged winding reel assemblies 5 are installed and fixed on the outer casing 7. The transmission box 1 has four side faces, each of which is provided with a mounting hole. The two ends of the worm 3 and the two ends of the turbine 2 are fixed to the mounting holes through bearings. The worm 3 and the turbine 2 are connected in an staggered meshing manner. The motor 4 is connected to the worm 3. The rotating surfaces between the turbine 2 and the worm 3 are perpendicular. The two ends of the turbine 2 are connected to the winding reel assembly 5. Under the drive of the motor 4, the synchronous rotation of the winding reel assembly 5 is achieved.

[0033] In this embodiment, the motor 4 is a stepper motor, which is an electric motor that converts an electrical pulse signal into a corresponding angular displacement or linear displacement. Each time a pulse signal is input, the rotor rotates an angle or advances a step. The angular displacement or linear displacement output is proportional to the number of pulses input, and the rotation speed is proportional to the pulse frequency. Therefore, the stepper motor can accurately control the rotation amplitude of the worm 3, and thus can accurately position the rotation amplitude of the turbine 2. In the process of driving the worm 3 to rotate, the stepper motor can achieve a transmission effect of different displacements according to the thread density between the turbine 2 and the worm 3. The number of stepper motors connected to the worm 3 can be set to one or two according to the actual load size, and can be flexibly selected according to the load size and cost.

[0034] In a specific embodiment, the cable reel assembly 5 of the dual-cable stage prop hoist comprises a first support rod 51, a second support rod 52, a cable reel 53 for winding the cable 50, a driven pulley 54, a synchronous belt 55 and a driving pulley 56;

[0035] The first end face of the wire drum 53 is rotatably connected to the first support rod 51 through a bearing, and the second end face is connected to the driven wheel 54, and the driven wheel 54 is rotatably connected to the second support rod 52 through a bearing; the driving wheel 56 is connected to the rotating shaft of the turbine 2, and the driving wheel 56 and the driven wheel 54 are rotatably connected through the synchronous belt 55.

[0036] Furthermore, the cable reel assembly 5 also includes two oppositely disposed guide wheels 57, which are located between the first support rod 51 and the second support rod 52. A guide position for the cable 50 is formed between the two guide wheels 57. The guide wheels 57 have an inwardly recessed annular groove. The two guide wheels 57 are oppositely disposed so that the cable 50 can be fixed by the two guide wheels 57. When the cable reel 53 is winding the cable 50, the two guide wheels 57 can limit and guide the cable 50. When the cable 50 is suspended in the air, its deadweight is relatively light and the cable 50 is easy to bend. The guide wheels can straighten the cable reel 53 to ensure that it is in a straight state when winding, thereby avoiding the problem of uneven lengths of the cables 50 wound on the two reels 53.

[0037] Furthermore, the cable drum 53 includes a first turntable 531 , a second turntable 532 and a drum 533 , one end of the cable 50 is fixed on the outer circumference of the drum 533 , and the first turntable 531 and the second turntable 532 are respectively arranged at the axial ends of the drum 533 .

[0038] In a specific embodiment, the diameter of the cable 50 of the dual-cable stage prop elevator is equal to the distance between the first turntable 531 and the second turntable 532. This configuration prevents the cable 50 from getting tangled or stuck on the reel 533, preventing problems such as one cable being too long or unable to be lifted.

[0039] In a specific embodiment, both axial ends of the worm 3 of the above-mentioned dual-cable stage prop elevator are connected to the motor 4 shaft of the motor 4 through a coupling 41. The motor 4 is fixed on the outer surface of the transmission box 1, and the motor 4 is a stepping motor.

[0040] In a specific embodiment, the ends of the cables 50 of the dual-cable stage prop elevator are further provided with a sling 6, which is used to fix the stage props. The sling 6 connects the two cables 50 by means of a lock, and the sling is provided with a mounting piece for fixing the stage props.

[0041] In a specific embodiment, the above-mentioned dual-cable stage prop lift also includes an outer shell 7, which is formed by a top plate, side plates and a bottom plate. The transmission box 1 and the cable reel assembly 5 are installed on the bottom plate. A switching power supply 8 is also provided on the bottom plate, and a handle 9 is provided on the top plate.

[0042] In a specific embodiment, the dual-cable stage prop lift further includes an energy storage device (not shown), which is disposed in the housing 7 . The energy storage device is connected to the motor 4 and the switching power supply 8 , and a control module is also provided in the switching power supply 8 .

[0043] Furthermore, the housing is provided with a power detection and display device connected to the energy storage device; the power detection and display device is provided with a charging socket.

[0044] In actual applications, there may be situations where it is impossible to connect to the mains electricity. In this case, power supply can be achieved through an energy storage device. Specifically, the energy storage device can use a lithium battery or a lead-acid battery, and can monitor the power in real time according to the power detection display device, thereby improving the applicability of the elevator.

[0045] Compared with the prior art, the dual-cable stage prop elevator provided by the present invention utilizes the self-locking function of the turbine 2 and worm 3 to achieve self-locking of the dual-cable stage prop elevator when power is off, eliminating the need for additional self-locking structure. It has the characteristics of simple structure and reasonable layout. The coaxially arranged winding reel assembly 5 realizes synchronous transmission through the motor 4, worm 3 and turbine 2, thereby improving the transmission stability of the cable 50 during the retraction and release process, avoiding the props from shaking during lifting and affecting the normal use of the props.

[0046] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0047] While various embodiments of the present invention have been described above, the above descriptions are illustrative and non-exhaustive, and are not intended to be limiting of the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to existing technologies, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A dual-cable stage prop lift, characterized in that: It includes a transmission box, a turbine, a worm, a motor and two coaxially arranged winding reel assemblies. The turbine and worm are installed inside the transmission box. The transmission box is provided with mounting holes for fixing the worm and the turbine. The turbine and worm are engaged, the worm is rotationally connected to the motor, and the two winding reel assemblies are rotationally connected to the turbine respectively.

2. The dual-cable stage prop lift according to claim 1, characterized in that: The cable reel assembly includes a first support rod, a second support rod, a cable reel for winding the cable, a driven wheel, a synchronous belt and a driving wheel; The first end face of the wire drum is rotatably connected to the first support rod through a bearing, and the second end face is connected to the driven wheel, and the driven wheel is rotatably connected to the second support rod through a bearing; the driving wheel is connected to the rotating shaft of the turbine, and the driving wheel and the driven wheel are rotatably connected through the synchronous belt.

3. The dual-cable stage prop lift according to claim 2, characterized in that: The cable reel assembly further comprises two oppositely arranged guide wheels, the guide wheels being located between the first support rod and the second support rod, and a guide position for the cable is formed between the two guide wheels.

4. The dual-cable stage prop lift according to claim 3, characterized in that: The cable drum includes a first turntable, a second turntable and a drum. One end of the cable is fixed on the outer circumference of the drum. The first turntable and the second turntable are respectively arranged at two axial ends of the drum.

5. The dual-cable stage prop lift according to claim 4, characterized in that: The diameter of the cable is equal to the distance between the first turntable and the second turntable.

6. The dual-cable stage prop lift according to claim 1, characterized in that: Both axial ends of the worm are connected to the motor shaft of the motor through couplings. The motor is fixed on the outer surface of the transmission box and is a stepping motor.

7. The dual-cable stage prop lift according to claim 2, characterized in that: The end of the cable is also provided with a sling, and the sling is used to fix the stage props.

8. The dual-cable stage prop lift according to any one of claims 1 to 7, characterized in that: It also includes a shell, which is formed by a top plate, side plates and a bottom plate. The transmission box and the winding reel assembly are installed on the bottom plate. A switching power supply is also provided on the bottom plate, and a handle is provided on the top plate.

9. The dual-cable stage prop lift according to claim 8, characterized in that: It also includes an energy storage device, which is arranged in the shell. The energy storage device is connected to the motor and the switching power supply. A control module is also provided in the switching power supply.

10. The dual-cable stage prop lift according to claim 9, characterized in that: The housing is also provided with a power detection and display device connected to the energy storage device; the power detection and display device is provided with a charging socket.

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