Single drive compact multi-layer transverse folding mechanism

Abstract

The application discloses a single-drive compact multi-layer transverse folding mechanism, which comprises a head moving module, a folding mechanism, a tail fixed module and two mutually parallel transverse fixed supports, the inner sides of the two transverse fixed supports are fixedly provided with side guide rails, the head moving module is fixedly arranged between the two transverse fixed supports and can move transversely along the two transverse fixed supports, the tail fixed module is fixedly arranged between the ends of the two transverse fixed supports, the folding mechanism is fixedly arranged between the two transverse fixed supports and can move transversely along the two transverse fixed supports, the front end of the folding mechanism is fixedly connected with the head moving module through a scissor support, the rear end of the folding mechanism is fixedly connected with the tail fixed module through a scissor support, the first ends of the two transverse fixed supports are fixedly provided with a driving mechanism, the driving mechanism adopts a single motor to drive a double-output shaft speed reducer to drive two chains to drive the head moving module, so that mechanical synchronization is realized.

Description

Technical Field

[0001] This application relates to the field of performance equipment technology, specifically to a single-drive compact multi-layer lateral folding mechanism. Background Technology

[0002] In the performing arts, scroll unfolding mechanisms (used for dynamic, horizontally folding performance art structures) are primarily used for the rapid switching of stage backdrops and scene transitions. Through sophisticated mechanical design and intelligent control systems, these mechanisms can unfold or retract large scrolls in a short time, adding rich visual layers and dynamic changes to the stage effects. With the development of stage technology, this technology not only enhances the visual expressiveness of performances but also provides directors and designers with greater creative space, greatly enriching the audience's audiovisual experience.

[0003] Existing scroll unfolding mechanisms are primarily horizontal folding mechanisms, which typically employ a synchronous folding design, capable of folding multiple layers simultaneously. However, during performances, many scenes often require folding layer by layer to achieve more refined stage effects. This synchronous folding method fails to effectively meet this need. Furthermore, to achieve layer-by-layer folding, each layer often needs to be controlled individually, which not only increases the complexity of the mechanism but also raises the probability of malfunctions and places high demands on control. Utility Model Content

[0004] To address this issue, this application provides a single-drive compact multi-layer lateral folding mechanism to solve the problems of existing lateral folding mechanisms that require separate driving for each layer during sequential folding, resulting in complex mechanisms and high failure rates.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A single-drive compact multi-layer lateral folding mechanism includes a head moving module, a folding mechanism, a tail fixing module, and two parallel lateral fixing brackets. Side guide rails are fixedly installed on the inner sides of both lateral fixing brackets. The head moving module is fixedly installed between the two lateral fixing brackets and can move laterally along them. The tail fixing module is fixedly installed between the ends of the two lateral fixing brackets. The folding mechanism is fixedly installed between the two lateral fixing brackets and can move laterally along them. The front end of the folding mechanism is fixedly connected to the head moving module via a scissor brace, and the rear end of the folding mechanism is fixedly connected to the tail fixing module via a scissor brace. A drive mechanism is fixedly installed at the beginning of each of the two lateral fixing brackets.

[0007] The drive mechanism includes a motor, a reducer, two couplings, two sprockets, and two chains. The reducer is a dual-output-shaft reducer. The output shaft of the motor is mechanically connected to the input end of the reducer. The two output shafts of the reducer are fixedly connected to the two sprockets through the two couplings. The two chains are arranged along the two side guide rails and mesh with the two sprockets. The two chains are fixedly connected to the bottom side of the head moving module and the folding mechanism through multiple side traveling wheels, so that the head moving module and the folding mechanism can move laterally along the side guide rails.

[0008] Preferably, the folding mechanism includes multiple sets of folding layers and multiple folding layer supports. Each set of folding layers is fixedly disposed on the front side of the folding layer support. The multiple sets of folding layers are connected by a top pin and a bottom bending wheel set. The side of the first set of folding layers is fixedly connected to the head moving module, and the side of the last set of folding layers is fixedly connected to the tail fixing module. The bottom sides of the multiple sets of folding layers are slidably connected to one of the transverse fixing supports through multiple side traveling wheels. The multiple folding layer supports are fixedly connected by scissor braces. The first folding layer support is fixedly connected to the head moving module, and the last folding layer support is fixedly connected to the tail fixing module. The bottom sides of the multiple folding layer supports are slidably connected to another transverse fixing support through multiple side traveling wheels.

[0009] Preferably, the system also includes an intermediate guide rail, which is fixedly disposed in the middle of the two transverse fixed supports and parallel to the two transverse fixed supports. The folding layer support includes a first upright, a second upright, and multiple crossbars. The two ends of the multiple crossbars are fixedly connected to the first upright and the second upright, respectively, and the multiple crossbars are evenly distributed to form a trapezoidal support. One end of the first crossbar and the last crossbar of the trapezoidal support extends out of the trapezoidal support and is rotatably connected to the top and bottom of the folding layer, respectively. The side of the last crossbar is slidably connected to one of the transverse fixed supports through a side walking wheel. A guide wheel assembly is fixedly disposed at the bottom of the second upright. The guide wheel assembly is located in the intermediate guide rail and can slide laterally along the intermediate guide rail.

[0010] Preferably, the intermediate guide rail is a double-groove guide rail, and the guide wheel assembly includes two wheels.

[0011] Preferably, the first crossbar of the trapezoidal bracket is rotatably connected to the top of the folded layer via a top rotary bearing, and the last crossbar of the trapezoidal bracket is rotatably connected to the bottom of the folded layer via a bottom rotary bearing.

[0012] Preferably, the scissor bracing includes a front scissor bracing and a rear scissor bracing, wherein the front scissor bracing is used to connect a plurality of first uprights and the rear scissor bracing is used to connect a plurality of second uprights.

[0013] Preferably, a linear guide rail is fixedly provided at the top of both the first upright and the second upright, and a linear wheel set is slidably provided in the linear guide rail. The linear wheel set is hinged to the front scissor brace or the rear scissor brace, so that the front scissor brace or the rear scissor brace can move up and down along the first upright or the second upright.

[0014] Preferably, the system also includes an unfolding guide plate, which is fixedly disposed between the last folded layer and the tail fixing module.

[0015] Preferably, a bending guide plate is also included, which is fixedly disposed between the last folded layer and the tail fixing module.

[0016] Preferably, the side-mounted wheels are double-sided double-mounted wheels.

[0017] Compared with the prior art, this application has at least the following beneficial effects:

[0018] 1. This application provides a single-drive compact multi-layer transverse folding mechanism, including a head moving module, a folding mechanism, a tail fixing module, and two parallel transverse fixing brackets. Side guide rails are fixedly installed on the inner sides of the two transverse fixing brackets. The head moving module is fixedly installed between the two transverse fixing brackets and can move laterally along the two transverse fixing brackets. The tail fixing module is fixedly installed between the ends of the two transverse fixing brackets. The folding mechanism is fixedly installed between the two transverse fixing brackets and can move laterally along the two transverse fixing brackets. The front end of the folding mechanism is fixedly connected to the head moving module through a scissor brace, and the rear end of the folding mechanism is fixedly connected to the tail fixing module through a scissor brace. A drive mechanism is fixedly installed at the beginning of the two transverse fixing brackets. The drive mechanism uses a single motor to drive a dual-output shaft reducer to drive two chains to drive the head moving module, thereby achieving mechanical synchronization. This makes the entire transverse folding mechanism simple in structure and has a low failure rate.

[0019] 2. The middle guide rail adopts a double-groove guide rail, which can save twice the length of space and minimize the thickness of the folded layer.

[0020] 3. The first horizontal bar of the trapezoidal bracket is rotatably connected to the top of the folded layer via a top rotating bearing, and the last horizontal bar of the trapezoidal bracket is rotatably connected to the bottom of the folded layer via a bottom rotating bearing. Rotating bearings are installed at both the top and bottom of each folded layer to minimize folding resistance.

[0021] 4. The tail section adopts a bending guide plate, which can achieve automatic folding at the desired position. This saves on the drive mechanism and avoids the mechanical system risks caused by the addition of additional mechanical mechanisms. Attached Figure Description

[0022] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).

[0023] Figure 1 A schematic diagram of the overall structure of a single-drive compact multi-layer lateral folding mechanism provided in this application;

[0024] Figure 2 A schematic diagram of the drive mechanism structure of a single-drive compact multi-layer transverse folding mechanism provided in this application;

[0025] Figure 3 A schematic diagram of a folding mechanism for a single-drive compact multi-layer lateral folding mechanism provided in this application;

[0026] Figure 4 A schematic diagram of a folding layer support structure for a single-drive compact multi-layer transverse folding mechanism provided in this application;

[0027] Figure 5 This application provides a schematic diagram of the linear guide rail and linear wheel assembly structure of a single-drive compact multi-layer transverse folding mechanism.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Head moving module; 2. Folding mechanism; 201. Folding layer; 202. Folding layer bracket; 2021. First upright; 2022. Second upright; 2023. Horizontal bar; 203. Top pin; 204. Bottom bending wheel assembly; 205. Top rotary bearing; 206. Bottom rotary bearing; 3. Tail fixing module; 4. Lateral fixing bracket; 401. Side guide rail; 5. Scissor brace; 501. Front scissor brace; 502. Rear scissor brace; 6. Drive mechanism; 601. Motor; 602. Reducer; 603. Coupling; 604. Sprocket; 7. Side traveling wheel; 8. Middle guide rail; 9. Guide wheel assembly; 10. Linear guide rail; 11. Linear wheel assembly; 12. Unfolding guide plate; 13. Bending guide plate. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In the description of this application: unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," etc., in this application are intended to distinguish the objects referred to and do not have any special meaning in terms of technical connotation (e.g., they should not be construed as an emphasis on importance or order). Expressions such as "comprising," "including," and "having" also mean "not limited to" (certain units, components, materials, steps, etc.).

[0032] The terms used in this application, such as "upper," "lower," "left," "right," and "middle," are generally used to indicate the general relative positional relationship for the purpose of intuitive understanding by referring to the accompanying drawings, and are not absolute limitations on the positional relationship in the actual product.

[0033] Please see Figure 1 This application provides a single-drive compact multi-layer lateral folding mechanism, including a head moving module 1, a folding mechanism 2, a tail fixing module 3, and two parallel lateral fixing brackets 4. Side guide rails 401 are fixedly installed on the inner sides of the two lateral fixing brackets 4. The head moving module 1 is fixedly installed between the two lateral fixing brackets 4 and can move laterally along the two lateral fixing brackets 4. The tail fixing module 3 is fixedly installed between the ends of the two lateral fixing brackets 4. The folding mechanism 2 is fixedly installed between the two lateral fixing brackets 4 and can move laterally along the two lateral fixing brackets 4. The front end of the folding mechanism 2 is fixedly connected to the head moving module 1 through a scissor brace 5, and the rear end of the folding mechanism 2 is fixedly connected to the tail fixing module 3 through a scissor brace 5. A drive mechanism 6 is fixedly installed at the head end of the two lateral fixing brackets 4.

[0034] Please see Figure 2 The drive mechanism 6 includes a motor 601, a reducer 602, two couplings 603, two sprockets 604, and two chains. The reducer 602 is a dual-output shaft reducer 602. The output shaft of the motor 601 is mechanically connected to the input end of the reducer 602. The two output shafts of the reducer 602 are fixedly connected to the two sprockets 604 via the two couplings 603, respectively. The two chains are arranged along the two side guide rails 401 and mesh with the two sprockets 604, respectively. The two chains are connected to multiple side travel wheels 7 (e.g., ...). Figure 3 (As shown) is fixedly connected to the bottom side of the head moving module 1 and the folding mechanism 2, so that the head moving module 1 and the folding mechanism 2 can move laterally along the side guide rail 401.

[0035] For details, please refer to Figure 3The folding mechanism 2 includes multiple sets of folding layers 201 (each set of folding layers 201 contains two folding plates) and multiple folding layer supports 202. Each set of folding layers 201 is fixedly mounted on the front of the folding layer support 202. The multiple sets of folding layers 201 are connected by a top pin 203 and a bottom bending wheel set 204. The side of the first set of folding layers 201 is fixedly connected to the head moving module 1, and the side of the last set of folding layers 201 is fixedly connected to the tail fixing module 3. The bottom sides of the multiple sets of folding layers 201 are slidably connected to a transverse fixing bracket 4 through multiple side traveling wheels 7. The multiple folding layer supports 202 are fixedly connected by scissor braces 5. The first folding layer support 202 is fixedly connected to the head moving module 1, and the last folding layer support 202 is fixedly connected to the tail fixing module 3. The bottom sides of the multiple folding layer supports 202 are slidably connected to another transverse fixing bracket 4 through multiple side traveling wheels 7. The side traveling wheels 7 are double-sided double traveling wheels.

[0036] Continue reading Figure 1 The single-drive compact multi-layer transverse folding mechanism provided in this application also includes an intermediate guide rail 8, which is fixedly disposed in the middle of two transverse fixed supports 4 and parallel to the two transverse fixed supports 4; Figure 4 As shown, the folding layer support 202 includes a first upright 2021, a second upright 2022, and multiple crossbars 2023. The two ends of the multiple crossbars 2023 are fixedly connected to the first upright 2021 and the second upright 2022, respectively. The multiple crossbars 2023 are evenly distributed to form a trapezoidal support. One end of the first crossbar 2023 and the last crossbar 2023 of the trapezoidal support extends out of the trapezoidal support and is rotatably connected to the top and bottom of the folding layer 201, respectively. The side of the last crossbar 2023 is slidably connected to a transverse fixed support 4 through a side walking wheel 7. A guide wheel group 9 is fixedly provided at the bottom of the second upright 2022. The guide wheel group 9 is located in the middle guide rail 8 and can slide laterally along the middle guide rail 8.

[0037] Specifically, in the single-drive compact multi-layer transverse folding mechanism provided in this application, the middle guide rail 8 is a double-groove guide rail, and the corresponding guide wheel group 9 includes two wheels. In this way, when the folding mechanism 2 is moving, the two wheels move in the double-groove guide rail, which allows the folding layer support 202 to keep moving parallel to each other without angular deviation or jamming.

[0038] Continue reading Figure 4In the single-drive compact multi-layer transverse folding mechanism provided in this application, the first crossbar 2023 of the trapezoidal bracket is rotatably connected to the top of the folding layer 201 via a top rotary bearing 205, and the last crossbar 2023 of the trapezoidal bracket is rotatably connected to the bottom of the folding layer 201 via a bottom rotary bearing 206. The top rotary bearing 205 and the bottom rotary bearing 206 allow the folding layer 201 to rotate along the central axis of the bearing during the folding process, minimizing resistance during folding.

[0039] Continue reading Figure 1 In the single-drive compact multi-layer lateral folding mechanism provided in this application, the scissor brace 5 includes a front scissor brace 501 and a rear scissor brace 502. The front scissor brace 501 is used to connect multiple first uprights 2021, and the rear scissor brace 502 is used to connect multiple second uprights 2022. The front scissor brace 501 and the rear scissor brace 502 can maintain the stability of movement between the folding layers 201.

[0040] Please see Figure 5 In the single-drive compact multi-layer transverse folding mechanism provided in this application, linear guide rails 10 are fixedly installed at the top of the first upright 2021 and the second upright 2022. Linear wheel sets 11 are slidably installed in the linear guide rails 10. The linear wheel sets 11 are hinged to the front scissor brace 501 or the rear scissor brace 502, so that the front scissor brace 501 or the rear scissor brace 502 can move up and down along the first upright 2021 or the second upright 2022. Among them, the head of the scissor brace 5 has a linear wheel set 11, which can move up and down in the linear guide rail 10, so that the scissor brace 5 can move smoothly during the opening and closing process, ensuring smooth mechanical operation.

[0041] Continue reading Figure 1 The single-drive compact multi-layer lateral folding mechanism provided in this application also includes an unfolding guide plate 12, which is fixedly disposed between the last folding layer 201 and the tail fixing module 3. Since each folding layer 201, both odd and even, is connected by a top pin 203 and a bottom bending wheel assembly 204, when the folding layer 201 unfolds to the required position, the bottom bending wheel assembly 204 at the bottom of the folding layer 201 touches the unfolding guide plate 12. The lateral force exerted by the unfolding guide plate 12 causes the folding layer 201 to shift back and forth, gradually flattening it and thus achieving the sequential unfolding function.

[0042] The single-drive compact multi-layer lateral folding mechanism provided in this application also includes a bending guide plate 13, which is fixedly disposed between the last folding layer 201 and the tail fixing module 3. Since each folding layer 201 between odd and even numbers is connected by a top pin 203 and a bottom bending wheel assembly 204, when the corresponding folding layer bracket 202 moves to the required folding position, the bottom bending wheel assembly 204 at the bottom of the folding layer 201 contacts the bending guide plate 13. The lateral force exerted by the bending guide plate 13 causes the folding layer 201 to shift back and forth, forming a V-angle to achieve folding, thus realizing sequential folding. The tail bending guide plate 13 enables automatic folding at the desired position, saving on the drive mechanism and avoiding the mechanical system risks caused by the addition of extra mechanical mechanisms.

[0043] This application provides a single-drive compact multi-layer transverse folding mechanism driven by a single motor 601, and using a dual-output shaft reducer 602 to drive two chains to drive the head moving module 1, achieving mechanical synchronization. This results in a simple structure and low failure rate for the entire transverse folding mechanism. A double-groove guide rail (middle guide rail 8) at the bottom maintains parallel movement between the folding layers 201. The double-groove guide saves twice the length of space, minimizing the thickness of the folded layer 201. Dual side wheels ensure the natural upright position of each folding layer 201. Two sets of scissor braces (front and rear) between adjacent folding layers 201 maintain folding stability. The scissor braces 5 are equipped with linear guide rails 10 and linear wheel sets 11. A bending guide plate 13 is provided at the tail folding position. The bending guide plate 13 passively actuates the bottom bending wheel sets 204 between adjacent folding layers 201 for folding. An unfolding guide plate 12 is also provided at the tail position. The unfolding guide plate 12 passively actuates the bottom bending wheel sets 204 between adjacent folding layers 201 for unfolding.

[0044] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A single-drive compact multi-layer lateral folding mechanism, characterized in that, The device includes a head moving module, a folding mechanism, a tail fixing module, and two parallel transverse fixing brackets. Side guide rails are fixedly installed on the inner sides of each of the two transverse fixing brackets. The head moving module is fixedly installed between the two transverse fixing brackets and can move laterally along them. The tail fixing module is fixedly installed between the ends of the two transverse fixing brackets. The folding mechanism is fixedly installed between the two transverse fixing brackets and can move laterally along them. The front end of the folding mechanism is fixedly connected to the head moving module via a scissor brace, and the rear end of the folding mechanism is fixedly connected to the tail fixing module via a scissor brace. A drive mechanism is fixedly installed at the beginning of each of the two transverse fixing brackets. The drive mechanism includes a motor, a reducer, two couplings, two sprockets, and two chains. The reducer is a dual-output-shaft reducer. The output shaft of the motor is mechanically connected to the input end of the reducer. The two output shafts of the reducer are fixedly connected to the two sprockets through the two couplings. The two chains are arranged along the two side guide rails and mesh with the two sprockets. The two chains are fixedly connected to the bottom side of the head moving module and the folding mechanism through multiple side traveling wheels, so that the head moving module and the folding mechanism can move laterally along the side guide rails.

2. The single-drive compact multi-layer lateral folding mechanism according to claim 1, characterized in that, The folding mechanism includes multiple sets of folding layers and multiple folding layer supports. Each set of folding layers is fixedly disposed on the front of the folding layer support. The multiple sets of folding layers are connected by a top pin and a bottom bending wheel set. The side of the first set of folding layers is fixedly connected to the head moving module, and the side of the last set of folding layers is fixedly connected to the tail fixing module. The bottom sides of the multiple sets of folding layers are slidably connected to a transverse fixing support through multiple side traveling wheels. The multiple folding layer supports are fixedly connected by scissor braces. The first folding layer support is fixedly connected to the head moving module, and the last folding layer support is fixedly connected to the tail fixing module. The bottom sides of the multiple folding layer supports are slidably connected to another transverse fixing support through multiple side traveling wheels.

3. The single-drive compact multi-layer lateral folding mechanism according to claim 2, characterized in that, It also includes a middle guide rail, which is fixedly set in the middle of the two horizontal fixed supports and parallel to the two horizontal fixed supports. The folding layer support includes a first upright, a second upright, and multiple horizontal bars. The two ends of the multiple horizontal bars are fixedly connected to the first upright and the second upright, respectively, and the multiple horizontal bars are evenly distributed to form a trapezoidal support. One end of the first horizontal bar and the last horizontal bar of the trapezoidal support extends out of the trapezoidal support and is rotatably connected to the top and bottom of the folding layer, respectively. The side of the last horizontal bar is slidably connected to one of the horizontal fixed supports through a side walking wheel. A guide wheel set is fixedly set at the bottom of the second upright. The guide wheel set is located in the middle guide rail and can slide laterally along the middle guide rail.

4. The single-drive compact multi-layer lateral folding mechanism according to claim 3, characterized in that, The intermediate guide rail is a double-groove guide rail, and the guide wheel assembly includes two wheels.

5. The single-drive compact multi-layer lateral folding mechanism according to claim 3, characterized in that, The first crossbar of the trapezoidal bracket is rotatably connected to the top of the folded layer via a top rotary bearing, and the last crossbar of the trapezoidal bracket is rotatably connected to the bottom of the folded layer via a bottom rotary bearing.

6. The single-drive compact multi-layer lateral folding mechanism according to claim 3, characterized in that, The scissor bracing includes a front scissor bracing and a rear scissor bracing. The front scissor bracing is used to connect multiple first uprights, and the rear scissor bracing is used to connect multiple second uprights.

7. The single-drive compact multi-layer lateral folding mechanism according to claim 6, characterized in that, The top of both the first and second uprights is fixedly provided with a linear guide rail, and a linear wheel set is slidably provided in the linear guide rail. The linear wheel set is hinged to the front scissor brace or the rear scissor brace, so that the front scissor brace or the rear scissor brace can move up and down along the first or second upright.

8. The single-drive compact multi-layer lateral folding mechanism according to claim 2, characterized in that, It also includes an unfolding guide plate, which is fixedly disposed between the last folded layer and the tail fixing module.

9. The single-drive compact multi-layer lateral folding mechanism according to claim 2, characterized in that, It also includes a bending guide plate, which is fixedly disposed between the last folded layer and the tail fixing module.

10. The single-drive compact multi-layer lateral folding mechanism according to claim 1, characterized in that, The side-mounted wheels are double-sided double-mounted wheels.

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