Stage curtain winding and unwinding structure

Abstract

The utility model relates to stage equipment technical field especially relates to a stage curtain retraction structure. Stage curtain retraction structure includes box body, and the one side of box body is equipped with several connecting blocks evenly, two -way threaded rod is installed in the recess that box body opens, and one end of two -way threaded rod is fixedly sleeved with hand wheel, and the inside of recess in box body is penetrated and has straight slot, and L type roof beam is symmetrically slidably installed in straight slot, and the one end of L type roof beam that extends into straight slot is installed with transmission piece, and transmission piece is connected with two -way threaded rod threadedly, and the other end of L type roof beam is installed with reel subassembly, and reel subassembly includes transmission shaft, and transmission shaft rotatoryly installs in the one end of L type roof beam that is away from transmission piece, and one end of transmission shaft is equipped with limit end plate, and the limit end plate is equipped with rectangular plug -in block, and the reel rod of rectangular plug -in block is movably inserted. The stage curtain retraction structure provided by the utility model has the advantages of convenient adjustment, and curtain retraction is smooth.

Description

Technical Field

[0001] This utility model relates to the field of stage equipment technology, and in particular to a stage curtain retraction structure. Background Technology

[0002] With the increasing richness of cultural life, people have higher and higher requirements for stage effects in performances. Stage curtains are important facilities used to separate the stage from the audience area or to divide the stage space. They are both practical and decorative, and are indispensable equipment on all types of stages. They play a role in decorating the stage and enhancing the performance effect. The curtains widely used on the stage mainly include main stage curtains, second curtains, third curtains, awning curtains, side curtains, gauze curtains, cyclorama curtains, sound-absorbing curtains, cascading curtains, side curtains, and fireproof safety curtains. The curtain lifting mechanisms in related technologies all use motors to drive the rotation of shafts to realize the winding or releasing of the curtain.

[0003] Modern performance venues have also moved from indoor to outdoor. In traditional indoor stages, the raising and lowering of stage curtains is mostly done using curtain lifting mechanisms. Existing curtain lifting mechanisms all use motors to drive the rotating shaft to achieve curtain winding or release. However, when used outdoors, due to the different sizes of stages, traditional curtain lifting mechanisms can only roll up curtains of a single size and cannot be flexibly adjusted according to the outdoor stage.

[0004] Therefore, it is necessary to provide a new stage curtain retraction structure to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a stage curtain retraction structure.

[0006] The stage curtain retraction structure provided by this utility model includes: a box body, wherein a plurality of connecting blocks are evenly provided on one side of the box body;

[0007] A bidirectional threaded rod is threaded into a groove in the housing, and a handwheel is fixedly fitted at one end of the bidirectional threaded rod. A straight groove is formed through the inside of the groove in the housing. An L-shaped beam is symmetrically slidably installed in the straight groove. A transmission plate is installed at one end of the L-shaped beam that extends into the straight groove. The transmission plate is threadedly connected to the bidirectional threaded rod. A reel assembly is installed at the other end of the L-shaped beam. The reel assembly includes a drive shaft. The drive shaft is rotatably installed at the end of the L-shaped beam away from the drive plate. A limiting end plate is provided at one end of the drive shaft. A rectangular insertion block is provided on the limiting end plate. A reel rod is movably inserted into the rectangular insertion block.

[0008] A synchronization controller is fixedly installed on the front side of the housing.

[0009] Preferably, a driven bevel gear is fixedly sleeved on the other end of the drive shaft, a drive motor is fixedly installed on one end of the L-shaped beam near the drive shaft, an active bevel gear is fixedly sleeved on the output shaft of the drive motor, the active bevel gear meshes with the driven bevel gear, and the drive motor is electrically connected to the synchronous controller.

[0010] Preferably, a limiting component for restricting the rotation of the bidirectional threaded rod is installed on the other end of the housing. The limiting component includes a fixed ring, which is fixedly installed on the housing. A movable ring is rotatably installed on the fixed ring. A protrusion is provided on the movable ring. A limiting screw is threadedly installed on the protrusion. A threaded hole for threaded engagement of the limiting screw is provided on the bidirectional threaded rod.

[0011] Preferably, the axis of the fixing ring is eccentrically distributed with the axis of the bidirectional threaded rod.

[0012] Preferably, an auxiliary mechanism is installed on the L-shaped beam at the bottom end of the drive shaft. The auxiliary mechanism includes a suspension plate, which is fixedly installed at the bottom end of the L-shaped beam. An auxiliary roller and a pressing roller are rotatably installed on one end of the suspension plate facing the roller rod. The auxiliary roller is connected to the drive shaft via a belt drive.

[0013] Preferably, the distance between the auxiliary roller and the pressing roller is slightly less than the thickness of the curtain.

[0014] Preferably, the two ends of the reel rod are provided with slots for insertion and engagement with rectangular plug blocks, the middle of the reel rod is provided with a cloth groove, and a number of recessed grooves are evenly distributed on one side of the reel rod, with a clamping bolt installed in the internal thread of the recessed groove.

[0015] Compared with related technologies, the stage curtain retraction structure provided by this utility model has the following beneficial effects:

[0016] 1. This utility model provides a stage curtain retraction structure. By symmetrically arranging L-shaped beams inside the box, and setting roller assemblies on the L-shaped beams, the spacing of the symmetrically arranged L-shaped beams can be adjusted by using a bidirectional threaded rod, thereby adjusting the spacing of the roller assemblies to adapt to stage curtains of different sizes.

[0017] 2. By setting an auxiliary mechanism on the L-shaped beam, the smoothness of curtain raising and lowering can be improved by using the cooperation of the suspension plate, auxiliary roller and pressure roller. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the stage curtain retraction structure provided by this utility model;

[0019] Figure 2A schematic diagram of a bidirectional threaded rod with an L-shaped beam installed on it, provided by this utility model;

[0020] Figure 3 A schematic diagram of a roller assembly mounted on an L-shaped beam provided by this utility model;

[0021] Figure 4 A schematic diagram of the structure of the scroll provided by this utility model;

[0022] Figure 5 A schematic diagram of the structure of the box provided by this utility model.

[0023] The following are the labeling elements in the diagram: 1. Box body; 11. Connecting block; 101. Groove; 102. Straight groove; 2. Bidirectional threaded rod; 21. Handwheel; 201. Threaded hole; 3. L-shaped beam; 31. Transmission plate; 4. Roller assembly; 41. Transmission shaft; 411. Limiting end plate; 42. Rectangular plug block; 43. Driven bevel gear; 44. Drive motor; 45. Driving bevel gear; 5. Roller rod; 501. Slot; 502. Cloth groove; 503. Sink; 51. Pressing bolt; 6. Limiting assembly; 61. Fixed ring; 62. Moving ring; 621. Protruding plate; 63. Limiting screw; 7. Synchronization controller; 8. Auxiliary mechanism; 81. Suspension plate; 82. Auxiliary roller; 83. Pressing roller. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Please see Figures 1 to 5 This utility model provides a stage curtain retraction structure, which includes:

[0027] Box 1, wherein a plurality of connecting blocks 11 are evenly provided on one side of the box 1;

[0028] A bidirectional threaded rod 2 is threadedly installed in a groove 101 in the housing 1, and a handwheel 21 is fixedly sleeved on one end of the bidirectional threaded rod 2. A straight groove 102 is opened through the inner side of the groove 101 in the housing 1. An L-shaped beam 3 is symmetrically slidably installed in the straight groove 102. A transmission plate 31 is installed at one end of the L-shaped beam 3 that extends into the straight groove 102. The transmission plate 31 is threadedly connected to the bidirectional threaded rod 2. A reel assembly 4 is installed at the other end of the L-shaped beam 3. The reel assembly 4 includes a transmission shaft 41. The transmission shaft 41 is rotatably installed at the end of the L-shaped beam 3 away from the transmission plate 31. A limiting end plate 411 is provided at one end of the transmission shaft 41. A rectangular insertion block 42 is provided on the limiting end plate 411. A reel rod 5 is movably inserted into the rectangular insertion block 42.

[0029] The synchronization controller 7 is fixedly installed on the front side of the housing 1.

[0030] Furthermore, a driven bevel gear 43 is fixedly sleeved on the other end of the transmission shaft 41, and a drive motor 44 is fixedly installed on one end of the L-shaped beam 3 near the transmission shaft 41. A driving bevel gear 45 is fixedly sleeved on the output shaft of the drive motor 44. The driving bevel gear 45 meshes with the driven bevel gear 43, and the drive motor 44 is electrically connected to the synchronous controller 7.

[0031] The roller rod 5 has slots 501 at both ends that are engaged with rectangular plug-in blocks 42, a cloth groove 502 through the middle of the roller rod 5, and several recessed grooves 503 evenly distributed on one side of the roller rod 5. The recessed grooves 503 are threaded with clamping bolts 51.

[0032] It should be noted that during use, select a suitable roller rod 5 according to the width of the stage curtain. Insert one end of the curtain into the fabric groove 502. After insertion, use the clamping bolts 51 to fix the curtain in the fabric groove 502. After fixing, align the slots 501 at both ends of the roller rod 5 with the rectangular insertion blocks 42. Then, turn the handwheel 21 to drive the bidirectional threaded rod 2 to rotate. When the bidirectional threaded rod 2 rotates, it drives the two L-shaped beams 3 to slide against each other along the straight groove 102 until the rectangular insertion blocks 42 of the sliding drive roller assembly 4 are inserted. Insert the roller rod 5 into the slot 501 to complete the clamping. Then, the box 1 is fixed to the stage curtain position using the connecting block 11. After placement, connect the synchronous controller 7 to the power supply. Then, use the synchronous controller 7 to control the drive motors 44 of the two roller assemblies 4 to start synchronously. When starting, drive the active bevel gear 45 to rotate. The active bevel gear 45 meshes with the driven bevel gear 43, thereby driving the transmission shaft 41 to rotate, which in turn drives the rectangular plug block 42 to drive the roller rod 5 to rotate, realizing the raising and lowering of the stage curtain.

[0033] In the embodiments of this utility model, please refer to Figures 1 to 5A limiting component 6 for restricting the rotation of the bidirectional threaded rod 2 is installed on the other end of the box body 1. The limiting component 6 includes a fixed ring 61, which is fixedly installed on the box body 1. A movable ring 62 is rotatably installed on the fixed ring 61. A protruding plate 621 is provided on the movable ring 62. A limiting screw 63 is threadedly installed on the protruding plate 621. A threaded hole 201 for threaded engagement of the limiting screw 63 is provided on the bidirectional threaded rod 2.

[0034] The axis of the fixed ring 61 is eccentrically distributed with the axis of the bidirectional threaded rod 2.

[0035] It should be noted that after adjusting the distance between the two L-shaped beams 3 using the bidirectional threaded rod 2, the movable ring 62 is driven to rotate around the fixed ring 61. The rotation limit screw 63 is aligned with the threaded hole 201, and then the limit screw 63 is screwed into the threaded hole 201. Since the fixed ring 61 and the bidirectional threaded rod 2 are eccentrically set, the limit screw 63, after being inserted into the threaded hole 201, can restrict the rotation of the bidirectional threaded rod 2, thereby achieving the adjusted limit.

[0036] In the embodiments of this utility model, please refer to Figures 1 to 5 An auxiliary mechanism 8 is installed on the L-shaped beam 3 at the bottom end of the transmission shaft 41. The auxiliary mechanism 8 includes a suspension plate 81, which is fixedly installed at the bottom end of the L-shaped beam 3. An auxiliary roller 82 and a pressing roller 83 are rotatably installed on one end of the suspension plate 81 facing the roller rod 5. The auxiliary roller 82 is connected to the transmission shaft 41 via a belt drive.

[0037] The distance between the auxiliary roller 82 and the pressing roller 83 is slightly less than the thickness of the curtain.

[0038] It should be noted that when the curtain is being raised or lowered, the two sides of the curtain are sandwiched between the auxiliary roller 82 and the pressing roller 83. When the drive shaft 41 rotates, the auxiliary roller 82 is driven to rotate synchronously by the belt drive, thereby using the friction between the auxiliary roller 82 and the curtain to drive the curtain to be raised or lowered stably.

[0039] The working principle of the stage curtain retraction structure provided by this utility model is as follows:

[0040] In use, select a suitable roller rod 5 according to the width of the stage curtain. Insert one end of the curtain into the fabric groove 502. After insertion, use the clamping bolts 51 to fix the curtain in the fabric groove 502. After fixing, align the slots 501 at both ends of the roller rod 5 with the rectangular insertion blocks 42. Then, turn the handwheel 21 to drive the bidirectional threaded rod 2 to rotate. When the bidirectional threaded rod 2 rotates, it drives the two L-shaped beams 3 to slide against each other along the straight groove 102 until the rectangular insertion blocks 42 of the sliding drive roller assembly 4 are inserted into the slots 501, completing the clamping of the roller rod 5. Then, drive the movable ring 62 to rotate around the fixed ring 61. Rotate the limit screw 63 to align with the threaded hole 201, and then tighten the limit screw. Screw 63 is inserted into threaded hole 201. Since the fixing ring 61 and the bidirectional threaded rod 2 are eccentrically set, the limit screw 63 can limit the rotation of the bidirectional threaded rod 2 after being inserted into threaded hole 201, thereby achieving the adjusted limit. Then, the box 1 is fixed to the position where the curtain is placed on the stage using connecting block 11. After placement, the synchronous controller 7 is powered on, and then the synchronous controller 7 controls the drive motors 44 of the two roller assemblies 4 to start synchronously. When starting, the active bevel gear 45 is driven to rotate. The active bevel gear 45 meshes with the driven bevel gear 43, thereby driving the transmission shaft 41 to rotate, which in turn drives the rectangular plug block 42 to drive the roller rod 5 to rotate, thereby realizing the raising and lowering of the stage curtain.

[0041] Furthermore, during the raising and lowering of the curtain, the two sides of the curtain are sandwiched between the auxiliary roller 82 and the pressing roller 83. When the drive shaft 41 rotates, the auxiliary roller 82 is driven to rotate synchronously by the belt drive, thereby using the friction between the auxiliary roller 82 and the curtain to drive the curtain to be raised and lowered stably.

[0042] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A stage curtain retraction structure, comprising: Box body (1), wherein a plurality of connecting blocks (11) are evenly provided on one side of the box body (1); Its characteristic is that it further includes: A bidirectional threaded rod (2) is threaded into a groove (101) in the housing (1), and a handwheel (21) is fixedly fitted at one end of the bidirectional threaded rod (2). A straight groove (102) is provided through the inner side of the groove (101) in the housing (1). An L-shaped beam (3) is symmetrically slidably installed in the straight groove (102). A transmission plate (31) is installed at one end of the L-shaped beam (3) that extends into the straight groove (102). The transmission plate (31) and the bidirectional threaded rod are connected to the handwheel (21). The threaded rod (2) is threaded, and the other end of the L-shaped beam (3) is equipped with a roller assembly (4). The roller assembly (4) includes a drive shaft (41). The drive shaft (41) is rotatably installed on one end of the L-shaped beam (3) away from the drive plate (31). One end of the drive shaft (41) is provided with a limiting end plate (411). The limiting end plate (411) is provided with a rectangular insertion block (42). The roller rod (5) is movably inserted into the rectangular insertion block (42). The synchronization controller (7) is fixedly installed on the front side of the housing (1).

2. The stage curtain retraction structure according to claim 1, characterized in that, The other end of the drive shaft (41) is fixedly fitted with a driven bevel gear (43). The L-shaped beam (3) is fixedly mounted with a drive motor (44) at one end near the drive shaft (41). The output shaft of the drive motor (44) is fixedly fitted with a driving bevel gear (45). The driving bevel gear (45) meshes with the driven bevel gear (43). The drive motor (44) is electrically connected to the synchronous controller (7).

3. The stage curtain retraction structure according to claim 1, characterized in that, A limiting component (6) for restricting the rotation of the bidirectional threaded rod (2) is installed on the other end of the box body (1). The limiting component (6) includes a fixed ring (61), which is fixedly installed on the box body (1). A movable ring (62) is rotatably installed on the fixed ring (61). A protruding plate (621) is provided on the movable ring (621). A limiting screw (63) is threadedly installed on the protruding plate (621). A threaded hole (201) for threaded engagement of the limiting screw (63) is opened on the bidirectional threaded rod (2).

4. The stage curtain retraction structure according to claim 3, characterized in that, The axis of the fixed ring (61) is eccentrically distributed with the axis of the bidirectional threaded rod (2).

5. The stage curtain retraction structure according to claim 1, characterized in that, An auxiliary mechanism (8) is installed on the L-shaped beam (3) at the bottom end of the drive shaft (41). The auxiliary mechanism (8) includes a suspension plate (81), which is fixedly installed on the bottom end of the L-shaped beam (3). An auxiliary roller (82) and a pressing roller (83) are rotatably installed on one end of the suspension plate (81) facing the roller rod (5). The auxiliary roller (82) is connected to the drive shaft (41) via a belt drive.

6. The stage curtain retraction structure according to claim 5, characterized in that, The distance between the auxiliary roller (82) and the pressing roller (83) is slightly less than the thickness of the curtain.

7. The stage curtain retraction structure according to claim 1, characterized in that, The two ends of the roller rod (5) are provided with slots (501) that are engaged with the rectangular plug-in block (42). The middle part of the roller rod (5) is provided with a cloth groove (502). Several recessed grooves (503) are evenly distributed on one side of the roller rod (5). The recessed grooves (503) are threaded with a clamping bolt (51).

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