A double wire up-down light fixture

Abstract

The utility model relates to stage lighting equipment technical field, concretely relates to a double -line lifting lamp, including box, two groups of lifting assemblies and two groups of reset components that are arranged in the box in parallel, lifting assembly includes left fixed vertical board, right fixed vertical board and the gyroscopically installed in left fixed vertical board and right fixed vertical board between the roller for the storage and release of lifting cable, reset component rotatable installation is between left fixed vertical board, right fixed vertical board, lifting cable is arranged in reset component, reset component is arranged below on lifting cable, and reset component is arranged on lifting assembly, reset component is arranged on the micro -switch, when lifting cable reeling reaches the preset position, reset component and reset component contact and drive reset component rotation, and then through micro -switch trigger reset micro -switch, the utility model fundamentally solves the problem that electronic memory type reset can be invalid, guarantees the absolute reliability and repeat accuracy of original point positioning.

Description

Technical Field

[0001] This utility model relates to the field of stage lighting equipment technology, specifically to a dual-line lifting lamp. Background Technology

[0002] In stage lighting performances, lifting lights are commonly used stage equipment. They use lifting mechanisms to adjust the height of the lights to meet different lighting effect requirements.

[0003] Currently, the origin reset function of lifting lights mostly relies on the absolute value encoding method of servo motors, that is, the origin reset is achieved by recording the running position information of the servo motor. However, this method has obvious drawbacks: when the equipment is powered off, the origin position information stored by the servo motor will be lost, and the origin needs to be recalibrated when power is restored. This not only affects the efficiency of use, but may also cause deviations in the lifting position of the lights due to calibration errors, affecting the stage effect. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a double-line lifting lamp that achieves the origin reset function through a mechanical structure. The reset is accurate and reliable, unaffected by power outages, and has a stable structure that is easy to maintain.

[0005] To achieve the objectives of this utility model, the following technical solution is adopted:

[0006] A dual-line lifting light fixture includes a housing, two sets of lifting components arranged side by side within the housing, and two sets of reset components, each set of lifting components corresponding to a set of reset components; each set of lifting components includes a left fixed plate, a right fixed plate, and rollers rotatably mounted between the left and right fixed plates for storing and retrieving the lifting cable.

[0007] The reset assembly is rotatably mounted between the left fixed plate and the right fixed plate. The lifting cable passes through the reset assembly. A reset stop is provided on the lifting cable below the reset assembly. A reset micro switch and a micro contact are provided on the lifting assembly. When the lifting cable is wound to a preset position, the reset stop contacts the reset assembly and drives the reset assembly to rotate, thereby triggering the reset micro switch through the micro contact.

[0008] A further improvement is that the lamp also includes a speed reducer assembly disposed between the two sets of lifting components. The speed reducer assembly is used to drive the rollers of the two sets of lifting components to rotate synchronously in order to realize the winding and unwinding of the lifting cable.

[0009] A further improvement is that the reducer assembly includes a reducer, a servo motor, a fixed frame, and reinforcing crossbars. The reducer is fixedly installed between the two sets of lifting assemblies through the fixed frame. The servo motor is driven by the reducer. The power output end of the reducer is driven by the rollers of the two sets of lifting assemblies. Several reinforcing crossbars are fixedly connected between the two sets of lifting assemblies and pass through the fixed frame.

[0010] A further improvement is that a top reinforcing plate is provided between the two sets of lifting components, and a safety lifting ring is installed on the top reinforcing plate. The top of the box is provided with a top cover on both sides of the top reinforcing plate.

[0011] A further improvement is that the lamp also includes four horizontal reinforcing rods located at the four corners of the chassis, and the four horizontal reinforcing rods all pass through the left and right fixed plates of the two sets of lifting components; several internal support rods are also fixedly connected between the left and right fixed plates of the lifting components.

[0012] A further improvement is that the reset assembly includes a central rotating shaft, a left rotating connecting rod, a right rotating connecting rod, and a rotating limiting shaft. The left and right rotating connecting rods are rotatably connected to the left and right fixed upright plates via the central rotating shaft. Both the left and right fixed upright plates are provided with rotating limiting holes. A rotating limiting shaft connects the left and right rotating connecting rods, and both ends of the rotating limiting shaft are respectively inserted into the rotating limiting holes of the left and right fixed upright plates to limit the rotation angle of the reset assembly. An inner reinforcing rod is fixedly connected between the left and right rotating connecting rods.

[0013] A further improvement is that the reset assembly includes two reset rollers, which are parallel and spaced apart. The two ends of the reset rollers are rotatably connected to a left rotating link and a right rotating link, respectively. The lifting cable passes through the gap between the two reset rollers. The reset impact member is located below the reset rollers and its outer diameter is larger than the gap width.

[0014] A further improvement is that the reset assembly also includes a tension spring, one end of the left rotating linkage is provided with a first fixing member, the left fixed plate is provided with a second fixing member, and the two ends of the tension spring are respectively connected to the first fixing member and the second fixing member.

[0015] A further improvement is that a micro-motion contact is fixed on the outer wall of the right rotating linkage. The micro-motion contact is a micro-motion limiting rod. A travel clearance hole is provided on the right fixed plate. One end of the micro-motion limiting rod is inserted into the travel clearance hole and extends to the outside of the right fixed plate. The reset micro-switch is installed on the outer wall of the right fixed plate. When the reset assembly rotates, the micro-motion limiting rod moves in the travel clearance hole and contacts or disengages from the trigger spring of the reset micro-switch.

[0016] A further improvement is that the reset impact member includes a reset impact ring, a reset compression spring, and a spring limiting member; the reset impact ring is movably sleeved on the lifting cable, the spring limiting member is fixed on the lifting cable and located below the reset impact ring, the reset compression spring is sleeved on the lifting cable and one end is fixedly connected to the reset impact ring, and the other end is fixedly connected to the spring limiting member.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention employs a purely mechanical triggering structure, utilizing the physical contact between the reset impactor and the reset wheel, as well as the physical on / off signal of the reset microswitch, to define and detect the upper limit origin. This mechanism is completely independent of the electronic storage system and is unaffected by power outages, fundamentally solving the problem of potential failure in electronic memory-based resets and ensuring absolute reliability and repeatability of origin positioning.

[0019] This utility model uses four horizontal reinforcing rods to connect through the left and right fixed upright plates of the lifting assembly, and combines them with the internal support rods inside the lifting assembly to form a multi-rigid support structure. At the same time, the reducer assembly is fixed to the reinforcing crossbars through the fixed frame, which enhances the rigidity and stability of the whole structure, effectively suppresses resonance during reducer operation, and reduces the risk of structural deformation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall appearance structure of a dual-line lifting lamp according to the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of a double-line lifting lamp according to this utility model. Figure 1 ;

[0022] Figure 3 This is a schematic diagram of the internal structure of a double-line lifting lamp according to this utility model. Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the internal structure of a double-line lifting lamp according to this utility model. Figure 3 ;

[0024] Figure 5This is a schematic diagram of the reset component structure of a dual-line lifting lamp according to the present invention;

[0025] Figure 6 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0026] Figure 7 for Figure 3 Enlarged schematic diagram of the structure at point B.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Housing; 2. Top reinforcing plate; 3. Safety lifting ring; 4. Top cover; 5. Lifting cable; 6. Horizontal reinforcing rod; 7. Left fixed upright plate; 8. Right fixed upright plate; 9. Left upright plate of the chassis; 10. Right upright plate of the chassis; 11. Spring limiting component; 12. Return compression spring; 13. Return impact ring; 14. Fixed frame; 15. Reducer; 16. Servo motor; 17. Reinforcing crossbar; 18. Return assembly; 181. Left rotating connecting rod; 182. Right rotating connecting rod; 183. Return wheel; 184. Rotating central shaft; 185. Rotating limiting shaft; 186. Micro-motion limiting rod; 187. Inner reinforcing rod; 19. Inner support rod; 20. Return micro switch; 21. Rotating limiting hole; 22. Second fixing component; 23. First fixing component; 24. Tension spring; 25. Travel clearance hole. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. These drawings are simplified schematic diagrams, illustrating only the basic structure of this utility model; therefore, the drawings only show the components relevant to this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] It should be noted that when a component is said to be "mounted" on another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms “and” and “and” as used herein include any and all combinations of one or more of the associated listed items.

[0032] Please refer to the attached document. Figure 1 - Appendix Figure 7 This utility model embodiment proposes a dual-line lifting lamp, including a housing 1, two sets of lifting components and two sets of reset components 18 arranged side by side in the housing 1, each set of lifting components corresponding to a set of reset components 18; each set of lifting components includes a left fixed plate 7, a right fixed plate 8 and a roller rotatably installed between the left fixed plate 7 and the right fixed plate 8 for storing and retrieving the lifting cable 5, the lifting cable 5 being wound around the roller.

[0033] In this embodiment, the lifting cable 5 of one set of lifting components is a power cable, and the lifting cable of the other set of lifting components is a signal cable.

[0034] The reset assembly 18 is rotatably mounted between the left fixed plate 7 and the right fixed plate 8. The lifting cable 5 passes through the reset assembly 18. A reset stop is provided on the lifting cable 5 below the reset assembly 18. A reset micro switch 20 is provided on the lifting assembly. A micro contact is provided on the reset assembly 18. When the lifting cable 5 is wound up to a preset position, the reset stop contacts the reset assembly 18 and drives the reset assembly 18 to rotate as a whole, thereby triggering the reset micro switch 20 through the micro contact.

[0035] Specifically, the lighting fixture also includes a speed reducer assembly disposed between the two sets of lifting components. The speed reducer assembly is used to drive the rollers of the two sets of lifting components to rotate synchronously in order to realize the winding and unwinding of the lifting cable 5.

[0036] The speed reducer assembly includes a speed reducer 15, a servo motor 16, a fixed frame 14, and reinforcing crossbars 17. The speed reducer 15 is fixedly installed between the two sets of lifting assemblies through the fixed frame 14. The servo motor 16 is drivenly connected to the speed reducer 15. The power output end of the speed reducer 15 is drivenly connected to the rollers of the two sets of lifting assemblies. Several reinforcing crossbars 17 are fixedly connected between the two sets of lifting assemblies and pass through the fixed frame 14.

[0037] It is understood that the working principle of the reducer assembly is as follows: the servo motor 16 is started, and the servo motor 16 drives the reducer 15 to operate through the coupling. The power output end of the reducer 15 simultaneously drives the rollers of the two sets of lifting components to rotate synchronously. When the rollers rotate, the lifting cable 5 is wound up or unwound, thereby driving the lighting equipment connected below to rise and fall vertically. During the lifting process, the lifting cable 5 moves in the gap between the two reset rollers 183. The reset rollers 183 rotate with the movement of the lifting cable 5, reducing the wear of the lifting cable 5 through rolling friction. At the same time, the reset assembly 18 maintains its initial position under the tension of the tension spring 24, and the micro-motion limit rod 186 is separated from the trigger spring of the reset micro-switch 20.

[0038] In this embodiment, the left side of the box 1 is connected to the left upright plate 9 of the box, and the right side of the box 1 is connected to the right upright plate 10 of the box. A top reinforcing plate 2 is provided between the two sets of lifting components. A safety lifting ring 3 is installed on the top reinforcing plate 2. Top covers 4 are respectively provided on both sides of the top reinforcing plate 2 at the top of the box 1.

[0039] Specifically, the top reinforcing plate 2 is fixedly connected to the top of the right fixed plate 8 of one set of lifting components and the left fixed plate 7 of another set of lifting components by bolts.

[0040] Specifically, the lamp also includes four transverse reinforcing rods 6 located at the four corners of the housing 1. All four transverse reinforcing rods 6 pass through the left fixed plate 7 and right fixed plate 8 of the two sets of lifting components. Several internal support rods 19 are also fixedly connected between the left fixed plate 7 and right fixed plate 8 of the lifting components, which further enhances the structural rigidity of each set of lifting components.

[0041] Specifically, in this embodiment, the reset assembly 18 includes a central rotating shaft 184, a left rotating connecting rod 181, a right rotating connecting rod 182, and a rotating limiting shaft 185. The left rotating connecting rod 181 and the right rotating connecting rod 182 are rotatably connected to the left fixed plate 7 and the right fixed plate 8 via the central rotating shaft 184, so that the entire reset assembly 18 is suspended between the left fixed plate 7 and the right fixed plate 8 and can rotate around the central rotating shaft 184. Each component is provided with an oblong rotation limiting hole 21. A rotation limiting shaft 185 is connected between the left rotation connecting rod 181 and the right rotation connecting rod 182. The two ends of the rotation limiting shaft 185 are respectively inserted into the rotation limiting holes 21 of the left fixed plate 7 and the right fixed plate 8 to limit the rotation angle of the reset assembly 18. An inner reinforcing rod 187 is fixedly connected between the left rotation connecting rod 181 and the right rotation connecting rod 182 to enhance the overall rigidity of the reset assembly 18 and prevent deformation under force.

[0042] Understandably, the long axis of the rotation limiting hole 21 limits the range of movement of the rotation limiting shaft 185, thereby precisely limiting the overall rotation angle of the reset assembly 18.

[0043] Specifically, the reset assembly 18 includes two reset rollers 183 and a tension spring 24. The two reset rollers 183 are parallel and spaced apart. The two ends of the reset rollers 183 are rotatably connected to the left rotating link 181 and the right rotating link 182, respectively. The lifting cable 5 passes through the gap between the two reset rollers 183. The reset impact member is located below the reset rollers 183 and the outer diameter of the reset impact member is larger than the width of the gap.

[0044] One end of the left rotating connecting rod 181 is provided with a first fixing member 23, and the left fixed plate 7 is provided with a second fixing member 22. The two ends of the tension spring 24 are respectively connected to the first fixing member 23 and the second fixing member 22. In the natural state, the tension of the tension spring 24 keeps the reset assembly 18 in an initial equilibrium position.

[0045] Furthermore, a micro-motion contact is fixed on the outer wall surface of the right rotating linkage 182. The micro-motion contact is a micro-motion limiting rod 186. A travel clearance hole 25 is provided on the right fixed plate 8. One end of the micro-motion limiting rod 186 is inserted into the travel clearance hole 25 and extends to the outside of the right fixed plate 8. The reset micro-switch 20 is installed on the outer wall surface of the right fixed plate 8. When the reset assembly 18 rotates, the micro-motion limiting rod 186 moves in the travel clearance hole 25 and contacts or disengages from the trigger spring of the reset micro-switch 20.

[0046] Specifically, the position of the trigger spring of the reset micro switch 20 is directly opposite to the movement trajectory of the outer end of the micro limit rod 186.

[0047] The working principle of origin reset is as follows: When origin reset is required, the control system issues a winding command, the servo motor 16 drives the roller to rotate, the lifting cable 5 is wound upwards, and the lighting equipment connected below the lifting cable 5 rises synchronously; as the winding process progresses, the reset impact piece on the lifting cable 5 gradually approaches the reset wheel 183; when it rises to the preset origin position, the reset impact piece contacts the lower end face of the two reset wheels 183. Since the outer diameter of the reset impact piece is larger than the gap between the two reset wheels 183, the continued winding causes the reset impact piece to apply an upward force to the reset wheel 183; this force drives the left rotating connecting rod 181 and the right rotating connecting rod The reset assembly 182 rotates around the central axis 184, and the rotation limit shaft 185 moves along the trajectory within the rotation limit hole 21. Simultaneously, the tension spring 24 is stretched and stores elastic potential energy. During the rotation of the reset assembly 18, the micro-motion limit rod 186 on the right rotating link 182 rotates synchronously with the right rotating link 182. Its extended end moves within the travel clearance hole 25 and gradually approaches the trigger spring of the reset micro switch 20. When the micro-motion limit rod 186 contacts the trigger spring and applies pressure, the reset micro switch 20 is triggered, sending a home position signal to the control system. After receiving the signal, the control system controls the servo motor 16 to stop rotating, completing the home position reset winding action. After successful home position positioning, the control system controls the servo motor 16 to slightly reverse, releasing a small section of the lifting cable 5. The top pressure acting on the reset wheel 183 immediately decreases. At this time, the restoring force of the stretched tension spring 24 becomes dominant, pulling the reset assembly 18 to rotate in the opposite direction around the central axis 184, restoring it to its initial equilibrium position. The micro-limit lever 186 then moves away from the trigger spring of the reset micro-switch 20, the reset micro-switch 20 is reset, and the electrical signal disappears.

[0048] In a preferred embodiment, the reset impact member includes a reset impact ring 13, a reset compression spring 12, and a spring limiting member 11. The reset impact ring 13 is movably sleeved on the lifting cable 5. The spring limiting member 11 is fixed on the lifting cable 5 and located below the reset impact ring 13. The reset compression spring 12 is sleeved on the lifting cable 5, with one end fixedly connected to the reset impact ring 13 and the other end fixedly connected to the spring limiting member 11. The outer diameter of the reset impact ring 13 is larger than the gap width formed by the two reset rollers 183 to ensure that it can be reliably blocked by the reset rollers 183.

[0049] Understandably, during the contact between the reset ring 13 and the reset wheel 183, if the reset micro switch 20 experiences a signal delay, the reset compression spring 12 acts as a buffer to prevent the lifting cable 5 from being stretched and damaged due to excessive winding.

[0050] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered as within the scope of this specification. The above embodiments only illustrate specific implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A double-line lifting lamp, characterized in that, It includes a housing, two sets of lifting components arranged side by side inside the housing, and two sets of reset components, with each set of lifting components corresponding to a set of reset components; each set of lifting components includes a left fixed plate, a right fixed plate, and rollers rotatably installed between the left and right fixed plates for storing and retrieving the lifting cable; The reset assembly is rotatably mounted between the left fixed plate and the right fixed plate. The lifting cable passes through the reset assembly. A reset stop is provided on the lifting cable below the reset assembly. A reset micro switch and a micro contact are provided on the lifting assembly. When the lifting cable is wound to a preset position, the reset stop contacts the reset assembly and drives the reset assembly to rotate, thereby triggering the reset micro switch through the micro contact.

2. A double-line lifting lamp according to claim 1, characterized in that, The lighting fixture also includes a speed reducer assembly disposed between the two sets of lifting components. The speed reducer assembly is used to drive the rollers of the two sets of lifting components to rotate synchronously in order to realize the winding and unwinding of the lifting cable.

3. A double-line lifting lamp according to claim 2, characterized in that, The speed reducer assembly includes a speed reducer, a servo motor, a fixed frame, and reinforcing crossbars. The speed reducer is fixedly installed between two sets of lifting assemblies via the fixed frame. The servo motor is driven by the speed reducer. The power output end of the speed reducer is driven by the rollers of the two sets of lifting assemblies. Several reinforcing crossbars are fixedly connected between the two sets of lifting assemblies and pass through the fixed frame.

4. A double-line lifting lamp according to claim 2, characterized in that, A top reinforcing plate is provided between the two sets of lifting components, and a safety lifting ring is installed on the top reinforcing plate. The top of the box is provided with a top cover on both sides of the top reinforcing plate.

5. A double-line lifting lamp according to claim 1, characterized in that, The lighting fixture also includes four horizontal reinforcing rods located at the four corners of the chassis. All four horizontal reinforcing rods pass through the left and right fixed plates of the two sets of lifting components. Several internal support rods are also fixedly connected between the left and right fixed plates of the lifting components.

6. A double-line lifting lamp according to claim 1, characterized in that, The reset assembly includes a central rotating shaft, a left rotating connecting rod, a right rotating connecting rod, and a rotating limiting shaft. The left and right rotating connecting rods are rotatably connected to the left and right fixed upright plates via the central rotating shaft. Both the left and right fixed upright plates are provided with rotating limiting holes. A rotating limiting shaft connects the left and right rotating connecting rods, with both ends of the rotating limiting shaft inserted into the rotating limiting holes of the left and right fixed upright plates, respectively, to limit the rotation angle of the reset assembly. An inner reinforcing rod is fixedly connected between the left and right rotating connecting rods.

7. A double-line lifting lamp according to claim 6, characterized in that, The reset assembly includes two reset rollers, which are parallel and spaced apart. The two ends of each reset roller are rotatably connected to a left rotating link and a right rotating link, respectively. The lifting cable passes through the gap between the two reset rollers. The reset impact member is located below the reset rollers and its outer diameter is larger than the gap width.

8. A double-line lifting lamp according to claim 6, characterized in that, The reset assembly also includes a tension spring, one end of the left rotating linkage is provided with a first fixing member, the left fixed plate is provided with a second fixing member, and the two ends of the tension spring are respectively connected to the first fixing member and the second fixing member.

9. A double-line lifting lamp according to claim 6, characterized in that, A micro-motion contact is also fixed on the outer wall of the right rotating linkage. The micro-motion contact is a micro-motion limiting rod. A travel clearance hole is provided on the right fixed plate. One end of the micro-motion limiting rod is inserted into the travel clearance hole and extends to the outside of the right fixed plate. The reset micro-switch is installed on the outer wall of the right fixed plate. When the reset assembly rotates, the micro-motion limiting rod moves in the travel clearance hole and contacts or disengages from the trigger spring of the reset micro-switch.

10. A double-line lifting lamp according to claim 7, characterized in that, The reset impact member includes a reset impact ring, a reset compression spring, and a spring limiting member; the reset impact ring is movably sleeved on the lifting cable, the spring limiting member is fixed on the lifting cable and located below the reset impact ring, the reset compression spring is sleeved on the lifting cable and one end is fixedly connected to the reset impact ring, and the other end is fixedly connected to the spring limiting member.

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