Outdoor louvered canopy with bidirectional telescopic opening and closing structure

Abstract

The utility model discloses an outdoor louver awning with two -way telescopic opening and closing structure, including stand, ring beam and be located on the louver assembly of ring beam, the louver assembly includes a plurality of louver board and is used to with a plurality of louver board linkage cooperation telescopic opening and closing mechanism, telescopic opening and closing mechanism includes first telescopic opening and closing mechanism and second telescopic opening and closing mechanism, a plurality of louver board divide into first louver unit and second louver unit, first louver unit is used to with first telescopic opening and closing mechanism linkage cooperation, second louver unit is used to with second telescopic opening and closing mechanism linkage cooperation. The utility model optimizes design, utilizes first telescopic opening and closing mechanism and second telescopic opening and closing mechanism respectively to first louver unit and second unit unit carry out corresponding telescopic folding or unfolding, so that it can realize the central open -top, and its central open -top area can carry out corresponding adjustment according to telescopic scale.

Description

Technical Field

[0001] This utility model relates to the field of louvered awning technology, and in particular to an outdoor louvered awning with a bidirectional telescopic opening and closing structure. Background Technology

[0002] To meet the demand for existing outdoor awning products, various types of awnings have emerged on the market, such as sunrooms with fixed roofs. This type of awning cannot retract its roof, limiting its use. Another type is the traditional fixed-roof louvered sunroom, which has only one function. This type of sunroom can only rotate the louvers, not extend them, thus failing to meet customers' desire for direct sunlight and unobstructed access to nature.

[0003] For example, CN219974341U discloses a driving mechanism for outdoor louvered awnings, including a louvered awning top and columns supporting the top. The louvered awning top contains several louvers, which can be flipped open and closed by a driving mechanism. The driving mechanism includes a pull rod and a driving body for moving the pull rod. The upper part of the pull rod is used to cooperate with a linked louver, which can be any one of the several louvers. The linked louver also cooperates with a linkage strip. This type of louvered awning can only achieve the flipping and opening of the louvers, and cannot achieve partial retraction.

[0004] For example, announcement number CN212295260U discloses a retractable louvered awning, belonging to the field of awning technology. It solves the problems of existing louvered awnings, which can only open and close by rotating the louvers via a transmission component, resulting in a limited effect and unsatisfactory lighting. This utility model includes an awning, an awning mounting frame, and an awning opening and closing mechanism. The awning includes several louvered covers. The awning opening and closing mechanism is mounted on the awning mounting frame and drives the louvered covers to move back and forth, flipping and opening / closing during this movement. When the louvered covers rotate to the closed state, adjacent louvered covers are joined together end-to-end. This retractable louvered awning is not only sturdy but also allows for retractable movement. During the retraction process, the louvers can rotate and snap shut to provide sun and rain protection. This retractable louvered awning is easy to use and significantly improves lighting, meeting diverse user needs.

[0005] While the aforementioned louvered awning structure allows for a large opening and enables the louvers to be folded and closed to one side, the louvers in this structure require the entire louvered panel to be folded and closed on one side during the folding and closing process. Compared to ordinary louvered awnings, it cannot achieve the simple opening and closing of the louvered awning top, resulting in a relatively limited overall function. In addition, existing telescopic louvered awnings typically only have a single-sided telescopic structure, which limits their use. Utility Model Content

[0006] To address the aforementioned issues, this utility model aims to provide an outdoor louvered awning with a bidirectional telescopic opening and closing structure, which can extend and retract at both ends, and can also independently flip and open and close the louvers after unfolding.

[0007] The technical problem solved by this utility model can be achieved by the following technical solution:

[0008] An outdoor louvered awning with a bidirectional telescopic opening and closing structure includes columns, a ring beam, and a louver assembly located on the ring beam. The louver assembly includes a plurality of louvered panels and a telescopic opening and closing mechanism for linkage with the plurality of louvered panels. The telescopic opening and closing mechanism includes a first telescopic opening and closing mechanism and a second telescopic opening and closing mechanism. The plurality of louvered panels are divided into a first louver unit and a second louver unit. The first louver unit is used to linkage with the first telescopic opening and closing mechanism, and the second louver unit is used to linkage with the second telescopic opening and closing mechanism. When the plurality of louvered panels are closed, the first louver unit and the second louver unit are separated and retracted from an adjacent state until the first louver unit or / and the second louver unit are completely closed.

[0009] The first telescopic opening and closing mechanism and the second telescopic opening and closing mechanism are driven by independent drive mechanisms.

[0010] The telescopic opening and closing mechanism is driven by a main drive mechanism, which is used to cooperate with the first telescopic opening and closing mechanism.

[0011] The first telescopic opening and closing mechanism includes a first input gear seat, a first driven gear seat, and a first synchronous belt. The first synchronous belt is used to correspondingly engage with the first input tooth in the first input gear seat and the first driven tooth in the first driven gear seat. The second telescopic opening and closing mechanism includes a second input gear seat, a second driven gear seat, and a second synchronous belt. The second synchronous belt is used to correspondingly engage with the second input tooth in the second input gear seat and the second driven tooth in the second driven gear seat. A first transmission tooth is also coaxially engaged on the first driven tooth, and a second transmission tooth is coaxially engaged on the second input tooth. The first transmission tooth and the second transmission tooth mesh with each other.

[0012] The first louver unit is provided with a first active louver, at least one end of which is fixedly engaged with a first synchronous belt via a first synchronous belt seat; the second louver unit is provided with a second active louver, at least one end of which is fixedly engaged with a second synchronous belt via a second synchronous belt seat; the first active louver and the second active louver are arranged adjacent to each other.

[0013] The first telescopic opening and closing mechanism further includes a first cross assembly, which includes a plurality of first cross units that are adjacent to each other. The first louver unit is used to cooperate with the first cross assembly, and a single louver plate in the first louver unit is used to cooperate with a single first cross unit. The second telescopic opening and closing mechanism further includes a second cross assembly, which includes a plurality of second cross units that are adjacent to each other. The second louver unit is used to cooperate with the second cross assembly, and a single louver plate in the second louver unit is used to cooperate with a single second cross unit.

[0014] It also includes a linkage mechanism for rotating several louvers. The linkage mechanism includes a linkage drive mechanism, a first linkage bar, a second linkage bar, and several linkage roller groups. The linkage drive mechanism drives the first linkage bar to move. A linkage swing arm is also provided between the first and second linkage bars. The first linkage bar has a first roller groove, and the second linkage bar has a second roller groove. The linkage roller group includes a first roller, a second roller, and a roller swing arm that links the first and second rollers. The first roller mates with the first roller groove, and the second roller mates with the second roller groove. At least one louver is installed in conjunction with the linkage mechanism.

[0015] Some of the several linkage roller groups are used to cooperate with the louvers in the first louver unit, and the other part is used to cooperate with the louvers in the second louver unit. The linkage roller groups that cooperate with the first louver unit are linked together through the first chain assembly, and the linkage roller groups that cooperate with the second louver unit are linked together through the second chain assembly.

[0016] The louvered panel includes a louvered body and end cap seats located at both ends of the louvered body. The end cap seats are provided with a louvered shaft, a louvered end cap, and a louvered inner liner seat. The louvered inner liner seat is embedded in the inner cavity of the end of the louvered body. The louvered end cap and the louvered inner liner seat adopt an integral or separate structure.

[0017] The ring beam includes an end face ring beam and an assembly ring beam. The end face ring beam is arranged parallel to the louver panel and is located at both ends of the louver assembly. The two sides of the louver assembly are used to cooperate with the assembly ring beam for installation. The end face ring beam includes an end face ring beam body and an end face ring beam cover plate located on the outer side of the end face ring beam body. The assembly ring beam includes an assembly ring beam body and an assembly ring beam cover plate located on the outer side of the assembly ring beam body.

[0018] The end of the louvered shaft is provided with a tapered docking part, the outer diameter of which gradually decreases outward. A tapered hole is provided in the cross hinge part of the first cross unit or the second cross unit, and the tapered hole is used to align and install with the tapered docking part.

[0019] The independent drive mechanism or the main drive mechanism adopts an electric drive mechanism or a manual drive mechanism.

[0020] The advantages of this utility model over the prior art are as follows: The optimized design utilizes a first telescopic opening and closing mechanism and a second telescopic opening and closing mechanism to correspondingly extend and retract or unfold the first louver unit and the second unit, enabling a centrally located awning, the area of ​​which can be adjusted according to the telescopic scale; the optimized linkage mechanism allows for the flipping operation of the louver panels while the louver assembly is fully extended, improving the functionality of the awning; and the optimized ring beam structure makes the installation of internal components more convenient and effective, and facilitates later maintenance.

[0021] The features of this utility model can be clearly understood by referring to the drawings and the following detailed description of the preferred embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the closed state structure of the louvered awning of this utility model;

[0023] Figure 2 This is a schematic diagram of the retracted structure of the louvered awning panel of this utility model.

[0024] Figure 3 This is a schematic diagram of the louver component structure of this utility model. Figure 1 ;

[0025] Figure 4 This is a magnified view of part A in the diagram;

[0026] Figure 5 This is a magnified view of part B in the diagram.

[0027] Figure 6 This is a magnified view of part C in the diagram.

[0028] Figure 7 This is a magnified view of part D in the diagram;

[0029] Figure 8 This is a schematic diagram of the louver component structure of this utility model. Figure 2 ;

[0030] Figure 9 This is a magnified view of part E in the diagram.

[0031] Figure 10 This is a magnified view of part F in the diagram.

[0032] Figure 11 This is a magnified view of a portion of the structure in Figure G.

[0033] Figure 12This is a schematic diagram of the telescopic opening and closing mechanism of this utility model;

[0034] Figure 13 This is a schematic diagram of the linkage mechanism structure of this utility model. Figure 1 ;

[0035] Figure 14 This is a schematic diagram of the structure of the first and second cross components of this utility model;

[0036] Figure 15 This is a schematic diagram of the linkage mechanism structure of this utility model. Figure 2 ;

[0037] Figure 16 This is a schematic cross-sectional view of the assembled ring beam structure of this utility model;

[0038] Figure 17 This is a schematic diagram of the end face ring beam structure of this utility model;

[0039] Figure 18 This is a schematic diagram of the louvered panel installation structure of this utility model. Figure 1 ;

[0040] Figure 19 This is a schematic diagram of the louvered panel installation structure of this utility model. Figure 2 ;

[0041] Figure 20 This is a cross-sectional view of the louver panel installation of this utility model;

[0042] Figure 21 This is a schematic diagram of the louvered awning of this utility model in the open state. Detailed Implementation

[0043] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0044] Combination Figures 1 to 21As shown, this utility model discloses an outdoor louvered awning with a bidirectional telescopic opening and closing structure, including a column 100, a ring beam 200, and a louver assembly 300 located on the ring beam 200. The louver assembly 300 includes a plurality of louver panels 330 and a telescopic opening and closing mechanism 400 for linkage and cooperation with the plurality of louver panels 330. The telescopic opening and closing mechanism 400 includes a first telescopic opening and closing mechanism 410 and a second telescopic opening and closing mechanism 420. The plurality of louver panels 330 are divided into a first louver unit 310 and a second louver unit 320. The first louver unit 310 is used to work in conjunction with the first telescopic opening and closing mechanism 410, and the second louver unit 320 is used to work in conjunction with the second telescopic opening and closing mechanism 420. When the louvers 330 are closed, the first louver unit 310 and the second louver unit 320 are separated and retracted from their adjacent state until the first louver unit 310 or / and the second louver unit 320 are fully closed. When it is necessary to unfold, the first louver unit 310 and the second louver unit 320 move closer to each other until they are adjacent and engaged.

[0045] In summary, the telescopic opening and closing mechanism 400 is driven by the main drive mechanism 500, which corresponds to and cooperates with the first telescopic opening and closing mechanism 410. The main drive mechanism 500 can be an electric drive mechanism or a manual drive mechanism. The electric drive mechanism typically includes a drive motor 510 and a motor output shaft 520. The main drive mechanism 500 is usually located in one end face ring beam 220 of the ring beam 200, and is used to provide power input to the first telescopic opening and closing mechanism 410 via the motor output shaft 520. It typically cooperates with the first input gear seat 411. The manual drive mechanism uses a turbine seat combined with a rotating handle, which is common in existing designs, to provide power input. This will not be described in detail here.

[0046] In the preferred structure, the first telescopic opening and closing mechanism 410 and the second telescopic opening and closing mechanism 420 are arranged on both sides, respectively, located on both sides of the louver assembly 300, for corresponding and cooperating with the assembly ring beam 220 in the ring beam 200; wherein, the first telescopic opening and closing mechanism 410 includes a first input gear seat 411, a first driven gear seat 413, and a first synchronous belt 412, the first synchronous belt 412 for corresponding and cooperating with the first input tooth 4111 in the first input gear seat 411 and the first driven tooth 4131 in the first driven gear seat 413. The second telescopic opening and closing mechanism 420 includes a second input gear seat 421, a second driven gear seat 423, and a second synchronous belt 422. The second synchronous belt 422 is used to correspond and cooperate with the second input tooth 4211 in the second input gear seat 421 and the second driven tooth 4231 in the second driven gear seat 423. The first driven tooth 4131 is also coaxially fitted with a first transmission tooth 4132, and the second input tooth 4211 is coaxially fitted with a second transmission tooth 4212. The first transmission tooth 4132 and the second transmission tooth 4212 mesh with each other.

[0047] In the specific transmission operation, the main drive mechanism 500 provides power input to the first input tooth 4111 in the first input gear seat 411. Typically, the first input tooth 4111 is fitted with an input gear shaft 4112, which is used to engage with the motor output shaft 520 or the turbine seat to achieve power input. The first input tooth 4111 can rotate in both directions. As the first input tooth 4111 rotates, the first synchronous belt 412 rotates. After the first synchronous belt 412 moves, the first driven tooth 4131 in the first driven gear seat 413 at the other end rotates, thereby rotating the coaxially engaged first transmission tooth 4132. The first transmission tooth 4132 meshes with the second transmission tooth 4212 to drive the second transmission tooth 4212. The second transmission tooth 4212 synchronously drives the coaxially engaged second input tooth 4211 to rotate. The second input tooth 4211 drives the second synchronous belt 422 and, in conjunction with the rotation of the second driven tooth 4231, drives the second synchronous belt 422.

[0048] In conjunction with the above, the first louver unit 310 is provided with a first active louver plate 311, at least one end of the first active louver plate 311 is fixedly engaged with the first synchronous belt 412 via a first synchronous belt seat 3111; the second louver unit 320 is provided with a second active louver plate 321, at least one end of the second active louver plate 321 is fixedly engaged with the second synchronous belt 422 via a second synchronous belt seat 3211; the first active louver plate 311 and the second active louver plate 321 are arranged adjacent to each other; in the above transmission engagement, the first transmission gear 4132 and the second transmission gear 4212 are reverse transmissions, such that the first synchronous belt 412 and the second synchronous belt 422 are connected in reverse order. The rotation directions of 22 are relatively set. Therefore, with the power input, the first synchronous belt 412 drives the first active louver 311 to move in position, and the second synchronous belt 422 drives the second active louver 321 to move in position. With the continuous movement of the first synchronous belt 412 and the second synchronous belt 422, the first active louver 311 moves towards the corresponding end face ring beam 210. Combined with the first cross component 430, it drives the other louver 330 in the first louver unit 310, realizing the retraction and engagement of the first louver unit 310 towards the end face ring beam 210. The retraction and engagement principle realized in the second louver unit 320 is the same as above.

[0049] The first telescopic opening and closing mechanism 410 further includes a first cross assembly 430, which includes a plurality of first cross units 431, which are adjacent to each other. A first louver unit 310 is used to cooperate with the first cross assembly 430 for installation, and a single louver plate 330 in the first louver unit 310 is used to cooperate with a single first cross unit 430 for installation. The second telescopic opening and closing mechanism 420 further includes a second cross assembly 440, which includes a plurality of second cross units 441, which are adjacent to each other. A second louver unit 320 is used to cooperate with the second cross assembly 440 for installation, and a single louver plate 330 in the second louver unit 320 is used to cooperate with a single second cross unit 441 for installation.

[0050] In combination with the above, the first cross component 430 and the second cross component 440 have the same structure. The first cross unit 431 and the second cross unit 441 have the same structure, both of which use two cross arms connected by an X-shaped hinge. The louver pivot 335 in the louver plate 330 is rotatably connected with the cross hinge part 450 in the first cross unit 431 or the second cross unit 441. The first cross component 430 and the second cross component 440 correspond to the first louver unit 310 and the second louver unit 320, respectively, so that they can realize bidirectional telescopic opening and closing.

[0051] The louvered shaft 335 has a tapered docking part 336 at its end. The outer diameter of the tapered docking part 336 gradually decreases outward. Usually, a limiting cut surface is also provided on the outer surface to increase the stability of the docking installation. The cross hinge part 450 in the first cross unit 431 or the second cross unit 441 is provided with a tapered hole 451. The tapered hole 451 is used to align and install with the tapered docking part 336. Through the tapered fit, a gap is left between the tapered docking part 336 and the tapered hole 451. After the end is fixed by fasteners, it will not loosen during use.

[0052] In conjunction with the above, it also includes a linkage mechanism 600, which drives a plurality of louvers 330 to rotate. The linkage mechanism 600 includes a linkage drive mechanism, a first linkage bar 650, a second linkage bar 660, and a plurality of linkage roller groups 340. The linkage drive mechanism drives the first linkage bar 650 to move. A linkage swing arm 670 is also provided between the first linkage bar 650 and the second linkage bar 660. A first roller groove 651 is provided in the first linkage bar 650, and a second roller groove 661 is provided in the second linkage bar 660. The linkage roller group 340 includes a first roller 342, a second roller 343, and a roller swing arm 341 that links the first roller 342 and the second roller 343. The first roller 342 cooperates with the first roller groove 651, and the second roller 343 cooperates with the second roller groove 661. At least one louver 330 is used to be installed in conjunction with the linkage mechanism 600.

[0053] In conjunction with the above, some of the several linkage roller groups 340 are used to cooperate with the louvers 330 in the first louver unit 310, and the other part is used to cooperate with the louvers 330 in the second louver unit 320. The linkage roller groups 340 cooperating with the first louver unit 310 are linked and cooperated with the first chain assembly 301, and the linkage roller groups 340 cooperating with the second louver unit 320 are linked and cooperated with the second chain assembly 302. The optimized design of the first chain assembly 301 and the second chain assembly 302 can improve the linkage between the louvers 330 in the first louver unit 310 or the second louver unit 320. In other embodiments, the first chain assembly 301 and the second chain assembly 302 can also be replaced by steel wire ropes.

[0054] The linkage drive mechanism is preferably an electric drive mechanism, but a manual drive mechanism can also be used. The electric drive mechanism uses a linkage drive motor 610, which, in conjunction with the linkage input shaft 620, the transmission swing arm 630, and the linkage pull rod 640, achieves transmission. The linkage pull rod 640 cooperates with the first linkage bar 650. The linkage drive motor 610 rotates the linkage input shaft 620, which in turn causes the transmission swing arm 630 to swing. The transmission swing arm 630 drives the linkage pull rod 640 to reciprocate and pull the first linkage bar 650, thereby moving the first linkage bar 650. Alternatively, the linkage input shaft 620 can be powered manually, for example, by using a turbine mount and a crank handle to input power and drive the linkage swing arm.

[0055] In the specific structure, the louvers 330, typically located at the ends of the first linkage bar 650 and the second linkage bar 660, are linked and installed with the linkage mechanism 600. The louver 330 has a louver linkage arm 350 at its end. The upper end of the louver linkage arm 350 is used to engage with the second linkage bar 650, and the lower end is used to engage with the first linkage bar 650. When the first linkage bar 650 moves with the linkage rod 640, it causes the louver linkage arm 350 to deflect, which in turn drives the corresponding louver. 330 achieves flipping, synchronously driving the second linkage bar 660 to move. As the first linkage bar 650 and the second linkage bar 660 move, combined with the linkage arm 670 and the leaf linkage arm 350, a quadrilateral deformation is formed, causing the height gap between the first linkage bar 650 and the second linkage bar 660 to change. This causes the first roller 342 and the second roller 343 located in the first roller groove 651 and the second roller groove 661 to move, thereby driving the roller swing arm 341 to deflect. The roller swing arm 341 drives the corresponding louvered plate 330 to flip.

[0056] In combination with the above, the louvered panel 330 includes a louvered body 331 and end cap seats 333 located at both ends of the louvered body 331. The end cap seats are provided with a louvered pivot 335, a louvered end cap 334 and a louvered inner liner seat 333. The louvered inner liner seat 333 is embedded in the inner cavity 332 at the end of the louvered body 331. The louvered end cap 334 and the louvered inner liner seat 333 adopt an integral or separate structure.

[0057] In conjunction with the above, the ring beam 200 includes an end ring beam 210 and an assembly ring beam 220. The end ring beam 210 is arranged parallel to the louver panel 330, and the end ring beam 220 is located at both ends of the louver assembly 300. Both sides of the louver assembly 300 are used to cooperate with the assembly ring beam 220 for installation. The end ring beam 210 includes an end ring beam body 211 and an end ring beam cover plate 212 located on the outer side of the end ring beam body 211. The assembly ring beam 220 includes an assembly ring beam body 221 and an assembly ring beam cover plate 222 located on the outer side of the assembly ring beam body 221.

[0058] In one embodiment, the first telescopic opening and closing mechanism 410 and the second telescopic opening and closing mechanism 420 are driven by independent drive mechanisms. These independent drive mechanisms can be electric or manual. The electric drive mechanism typically includes a drive motor and a motor output shaft. The independent drive mechanism is usually located within the end face ring beam of the ring beam, with one independent drive mechanism installed on each end face ring beam to correspond to the first and second telescopic opening and closing mechanisms, respectively. The motor output shaft is used to input power to either the first or second telescopic opening and closing mechanism and typically engages with the first input gear seat. The first and second telescopic opening and closing mechanisms have the same structure and are symmetrically arranged. The manual drive mechanism uses a turbine seat combined with a rotating handle, a common design feature, to input power, and will not be described further here.

[0059] This utility model features an optimized design, utilizing a first telescopic opening and closing mechanism and a second telescopic opening and closing mechanism to correspondingly extend and retract or unfold the first louver unit and the second unit, enabling a centrally located awning with an area that can be adjusted according to the telescopic scale. The optimized linkage mechanism allows for the flipping of the louver panels while the louver assembly is fully extended, improving the functionality of the awning. The optimized ring beam structure makes the installation of internal components more convenient and efficient, and facilitates future maintenance.

[0060] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the utility model. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An outdoor louvered awning with a bidirectional telescopic opening and closing structure, comprising columns, a ring beam, and a louver assembly located on the ring beam, wherein the louver assembly includes a plurality of louver panels and a telescopic opening and closing mechanism for linkage with the plurality of louver panels, characterized in that: The telescopic opening and closing mechanism includes a first telescopic opening and closing mechanism and a second telescopic opening and closing mechanism. Several louvers are divided into a first louver unit and a second louver unit. The first louver unit is linked and cooperates with the first telescopic opening and closing mechanism, and the second louver unit is linked and cooperates with the second telescopic opening and closing mechanism. When the louver assembly is closed, the first louver unit and the second louver unit are separated and retracted from the adjacent state to both ends until the first louver unit or / and the second louver unit have completed the full closure.

2. The outdoor louvered pergola with bidirectional telescopic opening and closing structure according to claim 1, characterized in that: The first telescopic opening and closing mechanism and the second telescopic opening and closing mechanism are driven by independent drive mechanisms.

3. The outdoor louvered pergola with bidirectional telescopic opening and closing structure according to claim 1, characterized in that: The telescopic opening and closing mechanism is driven by a main drive mechanism, which cooperates with the first telescopic opening and closing mechanism.

4. The outdoor louvered pergola with bidirectional telescopic opening and closing structure according to claim 3, characterized in that: The first telescopic opening and closing mechanism includes a first input gear seat, a first driven gear seat, and a first synchronous belt. The first synchronous belt is used to correspondingly engage with the first input tooth in the first input gear seat and the first driven tooth in the first driven gear seat. The second telescopic opening and closing mechanism includes a second input gear seat, a second driven gear seat, and a second synchronous belt. The second synchronous belt is used to correspondingly engage with the second input tooth in the second input gear seat and the second driven tooth in the second driven gear seat. A first transmission tooth is also coaxially engaged on the first driven tooth, and a second transmission tooth is coaxially engaged on the second input tooth. The first transmission tooth and the second transmission tooth mesh with each other.

5. The outdoor louvered pergola with bidirectional telescopic opening and closing structure according to claim 4, characterized in that: The first louver unit is provided with a first active louver plate, at least one end of which is fixedly engaged with a first synchronous belt via a first synchronous belt seat; the second louver unit is provided with a second active louver plate, at least one end of which is fixedly engaged with a second synchronous belt via a second synchronous belt seat; the first active louver plate and the second active louver plate are arranged adjacent to each other.

6. The outdoor louvered pergola with bidirectional telescopic opening and closing structure according to claim 5, characterized in that: The first telescopic opening and closing mechanism further includes a first cross assembly, which includes a plurality of first cross units that are adjacent to each other. The first louver unit is used to cooperate with the first cross assembly, and a single louver plate in the first louver unit is used to cooperate with a single first cross unit. The second telescopic opening and closing mechanism further includes a second cross assembly, which includes a plurality of second cross units that are adjacent to each other. The second louver unit is used to cooperate with the second cross assembly, and a single louver plate in the second louver unit is used to cooperate with a single second cross unit.

7. The outdoor louvered pergola with bidirectional telescopic opening and closing structure according to any one of claims 1 to 6, characterized in that: It also includes a linkage mechanism for rotating several louvers. The linkage mechanism includes a linkage drive mechanism, a first linkage bar, a second linkage bar, and several linkage roller groups. The linkage drive mechanism drives the first linkage bar to move. A linkage swing arm is also provided between the first and second linkage bars. The first linkage bar has a first roller groove, and the second linkage bar has a second roller groove. The linkage roller group includes a first roller, a second roller, and a roller swing arm that links the first and second rollers. The first roller mates with the first roller groove, and the second roller mates with the second roller groove. At least one louver is installed in conjunction with the linkage mechanism.

8. The outdoor louvered pergola with bidirectional telescopic opening and closing structure according to claim 7, characterized in that: Some of the several linkage roller groups are used to cooperate with the louvers in the first louver unit, and the other part is used to cooperate with the louvers in the second louver unit. The linkage roller groups that cooperate with the first louver unit are linked together through the first chain assembly, and the linkage roller groups that cooperate with the second louver unit are linked together through the second chain assembly.

9. The outdoor louvered pergola with bidirectional telescopic opening and closing structure according to claim 8, characterized in that: The louvered panel includes a louvered body and end cap seats located at both ends of the louvered body. The end cap seats are provided with a louvered shaft, a louvered end cap, and a louvered inner liner seat. The louvered inner liner seat is embedded in the inner cavity of the end of the louvered body. The louvered end cap and the louvered inner liner seat adopt an integral or separate structure.

10. The outdoor louvered pergola with bidirectional telescopic opening and closing structure according to claim 9, characterized in that: The ring beam includes an end face ring beam and an assembly ring beam. The end face ring beam is arranged parallel to the louver panel and is located at both ends of the louver assembly. The two sides of the louver assembly are used to cooperate with the assembly ring beam for installation. The end face ring beam includes an end face ring beam body and an end face ring beam cover plate located on the outer side of the end face ring beam body. The assembly ring beam includes an assembly ring beam body and an assembly ring beam cover plate located on the outer side of the assembly ring beam body.

11. The outdoor louvered pergola with bidirectional telescopic opening and closing structure according to claim 9, characterized in that: The end of the louvered shaft is provided with a tapered docking part, the outer diameter of which gradually decreases outward. A tapered hole is provided in the cross hinge part of the first cross unit or the second cross unit, and the tapered hole is used to align and install with the tapered docking part.

12. The outdoor louvered pergola with bidirectional telescopic opening and closing structure according to claim 7, characterized in that: The independent drive mechanism or the main drive mechanism adopts an electric drive mechanism or a manual drive mechanism.

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