Skylight sunshade curtain structure and vehicle

Abstract

The invention belongs to the technical field of automobile interiors, and discloses a skylight sunshade curtain structure and a vehicle. The skylight sunshade curtain structure comprises a skylight frame, a reel, a sunshade curtain and a transmission device, the skylight frame comprises a front cross beam, a rear cross beam and two side beams fixedly connected between the front cross beam and the rear cross beam, the reel is arranged on the rear cross beam, the rear end of the sunshade curtain is fixed to the reel, and the sunshade curtain can be wound around the reel; the transmission device comprises two first bevel gears, two second bevel gears and two conveying belt mechanisms, the two first bevel gears are arranged at the two ends of the rear cross beam respectively, the two conveying belt mechanisms are arranged on the corresponding side beams, one of the two first bevel gears is in transmission connection with the driving motor, and the other of the two second bevel gears is in transmission connection with the driving motor. The two second bevel gears are in transmission connection with the corresponding conveying belt mechanisms, and the two sides of the front end of the sunshade curtain are fixedly connected to the two conveying belt mechanisms. The sunroof sunshade curtain structure is small in occupied space, simple in structure and convenient to arrange.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automotive interior, in particular to a sunroof sunshade structure and a vehicle. BACKGROUND

[0002] With the development of the automotive industry, the sunroof has become an important configuration to improve the driving experience, and the sunroof sunshade is indispensable as a core component. In summer, it can block direct sunlight and prevent the car from heating up too quickly, reducing the load on the air conditioner; it can provide soft light in strong light to ensure driving safety and meet the user's privacy needs, and it is an essential component of the sunroof system of mainstream vehicles.

[0003] In related technologies, the sunroof sunshade generally uses a soft shaft transmission, and the soft shaft needs to be arranged around the sunshade. The front and rear beams need to be provided with through holes or soft shaft pipes, and the turning radius cannot be too small, which results in a large space occupation between the front and rear beams. To meet the entertainment needs of the current part of the vehicle, a screen, radar, etc. are arranged on the roof, further compressing the layout space of the sunroof sunshade, making it difficult to arrange the soft shaft type sunroof sunshade. SUMMARY

[0004] The purpose of the present application is to provide a sunroof sunshade structure and a vehicle, which has a small space occupation, a simple structure and is easy to arrange.

[0005] To achieve this purpose, the following technical solutions are used in the present application:

[0006] On the one hand, a sunroof sunshade structure is provided, which comprises a sunroof frame, a reel, a sunshade and a transmission device. The sunroof frame comprises a front cross beam and a rear cross beam arranged in parallel and spaced apart, and two side beams fixedly connected between the front cross beam and the rear cross beam. A driving motor is arranged on the rear cross beam. The reel is arranged on the rear cross beam. The rear end of the sunshade is fixed to the reel, and the sunshade can be wound around the reel. The transmission device comprises two first bevel gears, two second bevel gears and two conveyor belt mechanisms. One of the two first bevel gears is arranged at each end of the rear cross beam, and the two conveyor belt mechanisms are arranged one by one on the two side beams. One of the two first bevel gears is in transmission connection with the output shaft of the driving motor, and both the first bevel gears are coaxially fixedly connected with the reel. The two second bevel gears are in meshing connection with the two first bevel gears one by one, and the two second bevel gears are in transmission connection with the two conveyor belt mechanisms one by one. The front end of the sunshade is fixedly connected to the two conveyor belt mechanisms one by one on both sides.

[0007] As preferred, the conveying belt mechanism comprises two pull wires and two winding wheels, the two winding wheels are respectively rotationally connected to the two ends of the front beam, the axis of the winding wheel is parallel to the axis direction of the corresponding second bevel gear, the winding wheel and the second bevel gear are drivingly connected through the corresponding pull wire, and the front end of the sunshade curtain is fixedly connected to the two pull wires on the two sides one by one.

[0008] As preferred, the two side beams are respectively provided with left and right guide rails, the left and right guide rails are respectively slidably connected with sliding blocks, one end of the two sliding blocks is fixedly connected to the front end of the sunshade curtain on the two sides one by one, and the other end of the two sliding blocks is fixedly connected to the two pull wires on the two sides one by one.

[0009] As preferred, the front end of the sunshade curtain is fixedly connected with a pull plate, the pull plate is parallel to the reel, and the two sliding blocks are fixedly connected to the two ends of the pull plate one by one.

[0010] As preferred, the conveying belt mechanism further comprises two tensioning assemblies, the two tensioning assemblies are respectively arranged on the left and right guide rails, and the tensioning assembly is used for tensioning the corresponding pull wire.

[0011] As preferred, the tensioning assembly comprises a tensioning wheel and a movable shaft, the movable shaft is arranged in parallel to the axis direction of the second bevel gear, the tensioning wheel is rotationally connected to the movable shaft, and the two tensioning wheels abut against the pull wire one by one, so that the corresponding pull wire is tensioned.

[0012] As preferred, the tensioning assembly further comprises a fixing member and an elastic member, the left and right guide rails are respectively provided with sliding grooves, the length direction of the sliding groove is perpendicular to the side beam, the two movable shafts are slidably connected to the two sliding grooves one by one, the two fixing members are arranged between the two movable shafts, one fixing member is fixedly connected to the left guide rail, the other fixing member is fixedly connected to the right guide rail, and the elastic member is fixedly connected between the corresponding movable shaft and the fixing member.

[0013] As preferred, the sunroof sunshade curtain structure further comprises a connecting rod, the reel comprises a hollow sleeve and end covers which are detachably connected to the two ends of the sleeve, the connecting rod is arranged in the sleeve, the connecting rod is coaxially arranged with the sleeve, the connecting rod moves synchronously with the sleeve, and the connecting rod is fixedly connected between the two first bevel gears.

[0014] As preferred, the rear end of the sunshade curtain extends into the sleeve, the reel further comprises a tensioning spring, the tensioning spring is arranged in the sleeve, the tensioning spring can be extended and retracted along the length direction of the reel, and the two ends of the tensioning spring are fixedly connected to the rear end of the sunshade curtain on the two sides, so that the sunshade curtain is tensioned.

[0015] In another aspect, a vehicle is provided, which comprises a sunroof and the sunroof sunshade structure of any of the above technical solutions, and the sunroof sunshade structure is capable of shielding or exposing the sunroof.

[0016] The present application has the advantages of:

[0017] The present application provides a sunroof sunshade structure and a vehicle, which comprises a sunroof frame, a reel, a sunshade, and a transmission device, the sunroof frame comprises a front cross beam and a rear cross beam arranged in parallel and spaced apart, and two side beams fixedly connected between the front cross beam and the rear cross beam, and the transmission device comprises two first bevel gears, two second bevel gears, and two conveyor belt mechanisms.

[0018] On the one hand, the two first bevel gears are arranged at the two ends of the rear cross beam respectively, the two conveyor belt mechanisms are arranged one by one corresponding to the two side beams, one of the two first bevel gears is in transmission connection with the output shaft of the driving motor, the two first bevel gears are coaxially fixedly connected with the reel, the two second bevel gears are in meshing with the two first bevel gears one by one, and the axes of the first bevel gear and the corresponding second bevel gear are arranged vertically. By arranging the first bevel gear and the second bevel gear, the transmission between the motor and the conveyor belt mechanism is realized. Compared with the traditional spur gear transmission, the driving motor can be arranged horizontally on the rear cross beam without occupying additional longitudinal space, which further reduces the difficulty of structural arrangement and enables the entire sunshade system to be smoothly installed and stably operated in the limited roof space. On the other hand, by arranging the conveyor belt mechanism, compared with the hose type structure in the related art, it is not necessary to run around the sunshade four times, and it is not necessary to set through holes or flexible shaft tubes in the front cross beam and the rear cross beam area, and the flexible shaft is also free from the limitation of the turning radius, which can effectively reduce the occupation of the space between the front cross beam and the rear cross beam, and facilitate the arrangement of the sunroof sunshade structure. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the sunroof sunshade structure provided by the present application;

[0020] Figure 2 is a first partial structural schematic view of the sunroof sunshade structure provided by the present application;

[0021] Figure 3 is a second partial structural schematic view of the sunroof sunshade structure provided by the present application;

[0022] Figure 4 is a third partial structural schematic view of the sunroof sunshade structure provided by the present application.

[0023] In the drawings:

[0024] 1, front cross beam; 2, rear cross beam; 3, driving motor; 4, sunshade;

[0025] 5, reel; 51, sleeve; 52, end cap;

[0026] 6, first bevel gear; 7, second bevel gear; 8, pull wire; 9, winding wheel; 10, tensioning wheel; 11, movable shaft; 12, fixed part; 13, elastic part; 14, left guide rail; 15, right guide rail; 16, sliding block; 17, pull plate; 18, connecting rod; 19, tensioning spring. DETAILED DESCRIPTION

[0027] The application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are intended to be merely illustrative of the application and not in limitation thereof. It should also be noted that, for the purpose of clarity, only those structures related to the application are shown in the drawings.

[0028] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0029] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0030] In the description of the present embodiment, the terms "upper", "lower", "right", and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0031] On the one hand, please refer to Figures 1 to 4The embodiment provides a sunroof sunshade curtain structure, which comprises a sunroof frame, a reel 5, a sunshade curtain 4 and a transmission device, the sunroof frame comprises front cross beams 1 and rear cross beams 2 arranged in parallel and at intervals, and two side beams fixedly connected between the front cross beams 1 and the rear cross beams 2, and the rear cross beams 2 are provided with a driving motor 3; the reel 5 is arranged on the rear cross beams 2, the rear end of the sunshade curtain 4 is fixed to the reel 5, and the sunshade curtain 4 can be wound on the reel 5; the transmission device comprises two first bevel gears 6, two second bevel gears 7 and two conveyor belt mechanisms, the two first bevel gears 6 are arranged at two ends of the rear cross beams 2 respectively, the two conveyor belt mechanisms are arranged one by one on the two side beams, one of the two first bevel gears 6 is in transmission connection with an output shaft of the driving motor 3, the two first bevel gears 6 are all in coaxial fixed connection with the reel 5, the two second bevel gears 7 are in meshing connection with the two first bevel gears 6 one by one, and the two second bevel gears 7 are in transmission connection with the two conveyor belt mechanisms one by one, and the front end of the sunshade curtain 4 is fixedly connected to the two conveyor belt mechanisms one by one.

[0032] Specifically, mounting supports are fixedly connected to two ends of the rear cross beams 2, and the first bevel gears 6 and the second bevel gears 7 are mounted on the mounting supports.

[0033] On the one hand, the transmission between the driving motor 3 and the conveyor belt mechanisms is realized and the transmission direction is changed through meshing of the first bevel gears 6 and the second bevel gears 7, compared with traditional spur gear transmission, the driving motor 3 can be arranged horizontally on the rear cross beams 2, without occupying additional longitudinal space, so that the difficulty of structural arrangement is further reduced, and the whole sunshade curtain 4 system can still realize smooth installation and stable operation in limited roof space.

[0034] On the other hand, compared with the hose type structure in the related art, the conveyor belt mechanisms are arranged, without winding around the sunshade curtain 4, without arranging through holes or a flexible shaft tube in the area of the front cross beams 1 and the rear cross beams 2, and the flexible shaft is free from the limitation of the turning radius, so that the space between the front cross beams 1 and the rear cross beams 2 can be effectively occupied, and the sunroof sunshade curtain structure is convenient to arrange.

[0035] Optionally, please refer to Figures 1 to 3, the conveying belt mechanism comprises two pull wires 8 and two winding wheels 9, the two winding wheels 9 are rotationally connected to the two ends of the front cross beam 1 respectively, and the axis of the winding wheel 9 is parallel to the axis direction of the corresponding second bevel gear 7, the winding wheel 9 and the second bevel gear 7 are drivingly connected through the corresponding pull wire 8, and the front end of the sunshade curtain 4 is fixedly connected to the two pull wires 8 one by one. In this way, without complex pipes or perforations to accommodate components, the winding wheel 9 only needs to be rotationally connected to the two ends of the front cross beam 1, and the pull wire 8 can be arranged close to the side beam, further compressing the space occupation between the front cross beam 1 and the rear cross beam 2; at the same time, by parallelizing the axes of the winding wheel 9 and the second bevel gear 7, the pull wire 8 always maintains a stable stress direction during transmission, avoiding problems such as deviation, jamming or excessive wear of the pull wire 8 caused by axis deviation, ensuring more accurate and efficient power transmission from the second bevel gear 7 to the winding wheel 9, and further ensuring the smoothness of the sunshade curtain 4 during unfolding and storage, reducing the failure probability.

[0036] Further, the two side beams are respectively provided with left and right guide rails 14 and 15, the left and right guide rails 14 and 15 are respectively slidably connected with sliding blocks 16, one end of the two sliding blocks 16 is fixedly connected to the front end of the sunshade curtain 4 one by one, and the other end of the two sliding blocks 16 is fixedly connected to the two pull wires 8 one by one. Specifically, the sliding block 16 is connected with the pull wire 8 through a spring piece structure. In this way, the guide rail provides a fixed sliding path for the sliding block 16, which can strictly limit the movement track of the front end of the sunshade curtain 4, avoid problems such as left and right deviation, wrinkling or skewing of the sunshade curtain 4 during unfolding or storage, ensure that the sunshade curtain 4 always moves smoothly along the preset direction, greatly improve the smoothness and reliability during use, and realize precise guidance and smooth movement of the sunshade curtain 4.

[0037] Further, the front end of the sunshade curtain 4 is fixedly connected with a pull plate 17, the pull plate 17 is parallel to the winding shaft 5, and the two sliding blocks 16 are fixedly connected to the two ends of the pull plate 17 one by one. In this way, the sliding blocks 16 on the left and right guide rails 14 and 15 are rigidly connected through the pull plate 17 structure, ensuring the synchronous movement of the sliding blocks 16 at both ends of the pull plate 17, and further constraining the front end of the sunshade curtain 4 to always maintain a parallel posture with the winding shaft 5, cooperating with the synchronous sliding of the two sliding blocks 16 along the guide rail, avoiding problems such as front end tilting, left and right movement out of sync, wrinkling and jamming of the sunshade curtain 4 during unfolding or storage, and ensuring that the sunshade curtain 4 can cover the sunroof smoothly when fully unfolded, improving the shading effect and visual aesthetics.

[0038] Optionally, please refer to Figure 1 and Figure 4, the conveyor belt mechanism further comprises two tensioning assemblies, the two tensioning assemblies are respectively arranged on the left guide rail 14 and the right guide rail 15, and the tensioning assemblies are used for tensioning the corresponding pull wires 8. The vibration in the vehicle driving, the natural stretching of the pull wires 8 after long-term use, and the like are easy to cause the pull wires 8 to be relaxed, and further cause problems such as transmission lag, jamming in the unfolding and storage process of the sunshade curtain 4, insufficient in-place accuracy and the like. By arranging the tensioning assemblies to tension the pull wires 8, the relaxation amount can be compensated in real time, the pull wires 8 are always kept in a tense state, the transmission of power from the second bevel gear 7 to the winding wheel 9 is ensured to have no idle stroke, the sunshade curtain 4 is ensured to have timely and smooth action response, and the failure probability is reduced.

[0039] Specifically, the tensioning assembly comprises a tensioning wheel 10 and a movable shaft 11, the movable shaft 11 is arranged in parallel to the axis direction of the second bevel gear 7, the tensioning wheel 10 is rotationally connected to the movable shaft 11, and the two tensioning wheels 10 are in one-to-one correspondence with the pull wires 8, so that the corresponding pull wires 8 are tensioned.

[0040] Further, referring to Figure 4 , the tensioning assembly further comprises a fixing member 12 and an elastic member 13, a sliding groove is arranged on each of the left guide rail 14 and the right guide rail 15, the length direction of the sliding groove is perpendicular to the side beam, the two movable shafts 11 are in one-to-one correspondence with the two sliding grooves in a sliding connection manner, the two fixing members 12 are arranged between the two movable shafts 11, one fixing member 12 is fixedly connected to the left guide rail 14, the other fixing member 12 is fixedly connected to the right guide rail 15, and the elastic member 13 is fixedly connected between the corresponding movable shaft 11 and the fixing member 12.

[0041] Specifically, the fixing member 12 is a fixed pin, and the elastic member 13 is an elastic band. The elastic band is sleeved on the movable shaft 11 and the fixed pin. In other embodiments, the fixing member 12 can also be a fixed column welded to the guide rail, and the elastic member 13 can be a spring, and the two ends of the spring are fixedly connected to the movable shaft 11 and the fixed pin respectively.

[0042] In this way, the elastic member 13 connects the movable shaft 11 and the fixing member 12, and can compensate the relaxation amount of the pull wire 8 in real time by using the elastic deformation of itself. When the pull wire 8 is relaxed due to wear, stretching or temperature change, the elastic member 13 pushes the movable shaft 11 to slide along the sliding groove, drives the tensioning wheel 10 to move towards the pull wire 8, and always keeps the pull wire 8 in a stable tense state. When the pull wire 8 is instantaneously tense due to external force impact, the elastic member 13 can be appropriately contracted to avoid the pull wire 8 from being broken due to excessive tension, and a “flexible tensioning” effect is formed.

[0043] Optionally, referring to Figure 2 and Figure 3, the sunroof sunshade structure further comprises a connecting rod 18, the reel 5 comprises a hollow sleeve 51, and end covers 52 are detachably connected to two ends of the sleeve 51; the connecting rod 18 is arranged in the sleeve 51, is coaxial with the sleeve 51, and moves synchronously with the sleeve 51; and the connecting rod 18 is fixedly connected between the two first bevel gears 6. In this way, the connecting rod 18 is arranged in the sleeve 51, moves synchronously with the sleeve 51, and is fixedly connected between the two first bevel gears 6, so that the power transmitted by the driving motor 3 to the single-sided first bevel gear 6 can be uniformly and synchronously transmitted to the other first bevel gear 6 through the connecting rod 18, the transmission belt mechanism is prevented from deviating due to the asynchronization of power transmission of the two first bevel gears, and the balance of forces on the two sides of the sunshade 4 is ensured, so that the sunshade 4 will not be skewed or jammed during the unfolding and storage process, and the consistency and smoothness of the operation are ensured.

[0044] Further, the rear end of the sunshade 4 extends into the sleeve 51, and the reel 5 further comprises a tension spring 19 arranged in the sleeve 51; the tension spring 19 can be extended and retracted along the length direction of the reel 5, and the two ends of the tension spring 19 are fixedly connected to the two sides of the rear end of the sunshade 4, so that the sunshade 4 is tensioned. In this way, when the sunshade 4 is stored and wound on the sleeve 51, the tension spring 19 can apply uniform tension to the two sides of the rear end of the sunshade 4, so that the fabric of the sunshade 4 is closely and flatly attached to the sleeve 51 in the length direction, and the fabric is prevented from being wrinkled, deviated or loosely wound due to the uneven tension on the two sides, so that the appearance after storage is improved, and the risk of jamming during the next unfolding is reduced.

[0045] On the other hand, the embodiment provides a vehicle comprising a sunroof and the sunroof sunshade structure described above, and the sunroof sunshade structure can shield or expose the sunroof.

[0046] Please refer to Figures 1 to 4 The principle of shielding or exposing the sunroof by the sunroof sunshade structure is as follows:

[0047] When the sunshade 4 needs to be opened to expose the sunroof, the driving motor 3 is controlled to rotate in the forward direction, the first bevel gear 6 connected to one side of the driving motor 3 drives the corresponding second bevel gear 7 to rotate in the forward direction, the first bevel gear 6 on the other side drives the corresponding second bevel gear 7 to rotate in the reverse direction under the action of the connecting rod 18, the pull wires 8 close to the inner sides on the two sides move backward, the pull plate 17 is driven to move backward, the reel 5 rotates in the forward direction to wind the fabric on the outer circle of the sleeve 51, and the sunshade 4 is opened to expose the sunroof;

[0048] When it is needed to close the sunshade curtain 4 and shield the sunroof, the driving motor 3 is controlled to rotate reversely, the first bevel gear 6 connected with the driving motor 3 drives the corresponding second bevel gear 7 to rotate reversely, the first bevel gear 6 on the other side drives the corresponding second bevel gear 7 to rotate forwardly, the pull wires 8 on the two sides close to the inner side move forwardly, drive the pull plate 17 to move forwardly, and then pull the reel 5 to rotate reversely, release the sunshade curtain 4 wound on the reel 5, and realize the shielding of the sunroof.

[0049] Obviously, the above embodiments of the present application are merely exemplary for clarity and brevity and are not intended to limit the scope of the present application. Various obvious changes, modifications and substitutions can be made by those skilled in the art without departing from the scope of the present application. It is not necessary or possible to enumerate all the embodiments. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A skylight sunshade structure, characterized in that, include: The sunroof frame includes a front crossbeam (1) and a rear crossbeam (2) arranged in parallel intervals, and two side beams fixedly connected between the front crossbeam (1) and the rear crossbeam (2). A drive motor (3) is provided on the rear crossbeam (2). The sunshade curtain (4) and the roller (5) are provided on the rear crossbeam (2), the rear end of the sunshade curtain (4) is fixed to the roller (5), and the sunshade curtain (4) can be rolled up on the roller (5). The transmission device includes two first bevel gears (6), two second bevel gears (7), and two conveyor belt mechanisms. The two first bevel gears (6) are respectively disposed at both ends of the rear crossbeam (2). The two conveyor belt mechanisms are disposed on the two side beams in a corresponding manner. One of the two first bevel gears (6) is connected to the output shaft of the drive motor (3). Both first bevel gears (6) are coaxially fixedly connected to the roller (5). The two second bevel gears (7) mesh with the two first bevel gears (6) in a corresponding manner. The two second bevel gears (7) are connected to the two conveyor belt mechanisms in a corresponding manner. The two front ends of the sunshade (4) are fixedly connected to the two conveyor belt mechanisms in a corresponding manner.

2. The skylight sunshade structure according to claim 1, characterized in that, The conveyor belt mechanism includes two pull wires (8) and two winding wheels (9). The two winding wheels (9) are rotatably connected to both ends of the front crossbeam (1), and the axis of the winding wheel (9) is parallel to the axis of the corresponding second bevel gear (7). The winding wheel (9) and the second bevel gear (7) are connected by transmission through the corresponding pull wires (8). The front ends of the sunshade (4) are fixedly connected to the two pull wires (8) one by one.

3. The skylight sunshade structure according to claim 2, characterized in that, A left guide rail (14) and a right guide rail (15) are respectively provided on the two side beams. Sliders (16) are slidably connected on the left guide rail (14) and the right guide rail (15). One end of the two sliders (16) is fixedly connected to the front sides of the sunshade (4) in a one-to-one correspondence. The other end of the two sliders (16) is fixedly connected to the two pull lines (8) in a one-to-one correspondence.

4. The skylight sunshade structure according to claim 3, characterized in that, The front end of the sunshade (4) is fixedly connected to a pull plate (17), which is arranged parallel to the roller (5). Two sliders (16) are fixedly connected to the two ends of the pull plate (17) in a one-to-one correspondence.

5. The skylight sunshade structure according to claim 4, characterized in that, The conveyor belt mechanism also includes two tensioning components, which are respectively disposed on the left guide rail (14) and the right guide rail (15). The tensioning components are used to tension the corresponding pull wires (8).

6. The skylight sunshade structure according to claim 5, characterized in that, The tensioning assembly includes a tensioning wheel (10) and a movable shaft (11). The movable shaft (11) is arranged parallel to the axial direction of the second bevel gear (7). The tensioning wheel (10) is rotatably connected to the movable shaft (11). The two tensioning wheels (10) abut against the pull wire (8) in a one-to-one correspondence, so that the corresponding pull wire (8) is tensioned.

7. The skylight sunshade structure according to claim 6, characterized in that, The tensioning assembly further includes a fixing member (12) and an elastic member (13). The left guide rail (14) and the right guide rail (15) are respectively provided with sliding grooves. The length direction of the sliding groove is perpendicular to the side beam. The two movable shafts (11) are slidably connected to the two sliding grooves in a one-to-one correspondence. The two fixing members (12) are arranged between the two movable shafts (11), and one fixing member (12) is fixedly connected to the left guide rail (14) and the other fixing member (12) is fixedly connected to the right guide rail (15). The elastic member (13) is fixedly connected between the corresponding movable shaft (11) and the fixing member (12).

8. The skylight sunshade structure according to any one of claims 1-7, characterized in that, The skylight sunshade structure also includes a connecting rod (18). The roller (5) includes a hollow sleeve (51) and end caps (52) detachably connected to both ends of the sleeve (51). The connecting rod (18) passes through the sleeve (51). The connecting rod (18) is coaxially arranged with the sleeve (51) and moves synchronously with the sleeve (51). The connecting rod (18) is fixedly connected between the two first bevel gears (6).

9. The skylight sunshade structure according to claim 8, characterized in that, The rear end of the sunshade (4) extends into the sleeve (51). The roller (5) also includes a tension spring (19). The tension spring (19) is disposed inside the sleeve (51). The tension spring (19) can extend and retract along the length direction of the roller (5). The two ends of the tension spring (19) are fixedly connected to the two sides of the rear end of the sunshade (4) so ​​that the sunshade (4) is tensioned.

10. A vehicle, characterized in that, The vehicle includes a sunroof and a sunroof sunshade structure as described in any one of claims 1-9, the sunroof sunshade structure being capable of concealing or exposing the sunroof.

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