Drop-stop sunblind mechanism and vehicle

Abstract

The present disclosure provides a kind of stop sunshade mechanism and vehicle, the field of automobile parts. Two ends of roller shaft are respectively provided with first gear coaxial with roller shaft;Two second gears are provided on cross beam, each second gear corresponds to a first gear;Each rack is sleeved on a group of corresponding first gear and second gear;Sunshade curtain is formed into double-sided structure around roller shaft, the first side of upper and lower two layers of sunshade curtain is connected to moving plate, the second side of upper and lower two layers of sunshade curtain is connected with the rack of upper and lower two layers, moving plate is used to move between roller shaft and cross beam to adjust the shading area of sunshade curtain. The cooperation of rack and first gear and second gear can also make sunshade curtain stably stop at fixed position;Sunshade curtain does not need to be entirely rolled on roller shaft, but sunshade curtain passes around roller shaft to form double-layer structure, which can reduce the space occupied by sunshade curtain in retracted state, and can also reduce the weight required to be borne by the position of vehicle body corresponding to roller shaft.

Description

Technical Field

[0001] This disclosure relates to the field of automotive parts, specifically to an instant-stop sunshade mechanism and a vehicle. Background Technology

[0002] Sunshades in cars can be equipped with sunshade mechanisms, and the area covered by the sunshade curtain can be adjusted to change the sunroof's obstruction area. However, in existing technology, some sunshades cannot be instantly stopped and are easily disturbed, making it difficult to stay stably in a fixed position. For example, the inertia generated by the vehicle starting or stopping can cause the sunshade curtain to move, which seriously affects the user experience. On the other hand, sunshade mechanisms that can instantly stop the sunshade curtain have a relatively heavy structure and occupy more space. Summary of the Invention

[0003] This disclosure provides an instant-stop sunshade mechanism and a vehicle.

[0004] According to a first aspect of this disclosure, an instant-stop shading mechanism is provided, comprising:

[0005] A roller shaft, with a first gear coaxial with the roller shaft at each of its two ends;

[0006] A crossbeam, on which two second gears are provided, each second gear corresponding to a first gear;

[0007] Two annular rack belts, each rack belt being fitted onto a corresponding first gear and second gear;

[0008] The sunshade curtain and the movable plate are arranged in a double-sided structure, with the first side of the upper and lower layers of the sunshade curtain connected to the movable plate and the second side of the upper and lower layers of the sunshade curtain connected to the toothed belts of the upper and lower layers. The movable plate is used to move between the roller and the crossbeam to adjust the coverage area of ​​the sunshade curtain.

[0009] In some embodiments of this disclosure, a movable gear seat is provided on the crossbeam, and a second gear is disposed on the gear seat;

[0010] A tensioning device is also installed on the crossbeam. The tensioning device is connected to the gear seat and is used to apply a first driving force to the gear seat to drive the gear seat away from the first gear, so that the rack belt is taut.

[0011] In some embodiments of this disclosure, the tension device includes a spring, the extension direction of which is parallel to the length direction of the rack and pinion;

[0012] One end of the spring is connected to the crossbeam, and the other end of the spring is connected to the gear seat.

[0013] In some embodiments of this disclosure, a limiting block is provided at the bottom of the gear seat, a limiting groove is provided on the crossbeam, and the limiting block is disposed inside the limiting groove;

[0014] In the direction parallel to the first driving force, the size of the limiting groove is larger than the size of the limiting block.

[0015] In some embodiments of this disclosure, the movable plate includes a first movable plate and a second movable plate stacked together.

[0016] The first side of the upper layer of the sunshade curtain is connected to the first movable plate, and the first side of the lower layer of the sunshade curtain is connected to the second movable plate.

[0017] When it is necessary to increase the coverage area of ​​the sunshade, the first moving plate moves toward the crossbeam and the second moving plate moves toward the roller; when it is necessary to reduce the coverage area of ​​the sunshade, the first moving plate moves toward the roller and the second moving plate moves toward the crossbeam.

[0018] In some embodiments of this disclosure, the stop-type sunshade mechanism further includes a guide device disposed between the roller and the crossbeam;

[0019] The guiding device is provided with a guide groove parallel to the rack belt, and the rack belt, the first end of the first layer moving plate, and the second end of the second layer moving plate are all located inside the guide groove.

[0020] In some embodiments of this disclosure, the guide groove includes a first guide groove, a second guide groove, and a third guide groove arranged in a stacked manner;

[0021] The upper layer of the rack belt is located in the first guide groove, the lower layer of the rack belt is located in the third guide groove, and the first end of the first layer moving plate and the second end of the second layer moving plate are both located in the second guide groove.

[0022] In some embodiments of this disclosure, the upper layer of the rack belt is close to the bottom surface of the first guide groove, and the bottom surface of the first guide groove is provided with a first stop bar for preventing the rack belt from sliding out.

[0023] The lower layer of the rack belt is close to the top surface of the third guide groove, and the top surface of the third guide groove is provided with a second stop bar to prevent the rack belt from sliding out.

[0024] In some embodiments of this disclosure, the first end of the first movable plate is close to the top surface of the second guide groove, and the second end of the second movable plate is close to the bottom surface of the second guide groove.

[0025] The top surface of the second guide groove is provided with a third stop bar to prevent the first end from sliding out, and the bottom surface of the second guide groove is provided with a groove to prevent the second end from sliding out.

[0026] According to a second aspect of this disclosure, an automobile is provided, the automobile including the instant-stop sunshade mechanism provided in the first aspect.

[0027] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description.

[0028] The beneficial effects of the technical solution provided in this disclosure are:

[0029] In the technical solution disclosed herein, the sunshade is moved by pulling a movable plate. Since the second side of the sunshade is connected to a rack and pinion belt, the sunshade also drives the second gear to rotate via the rack and pinion belt. That is, the motion mechanism composed of the first gear, the second gear, and the rack and pinion belt is linked to the sunshade. Based on this motion mechanism, the sunshade can be stopped immediately, and the cooperation between the rack and pinion belt and the first and second gears allows the sunshade to be stably stopped in a fixed position. Furthermore, the sunshade does not need to be entirely rolled up on the roller; instead, it wraps around the roller to form a double-layer structure. This reduces the space occupied by the sunshade in the retracted state and also reduces the weight that the vehicle body area corresponding to the roller needs to bear. Attached Figure Description

[0030] The accompanying drawings are provided to better understand this solution and do not constitute a limitation of this disclosure. Wherein:

[0031] Figure 1 A schematic diagram of an instant-stop sunshade mechanism provided in this disclosure is shown;

[0032] Figure 2 A side cross-sectional view of an instant-stop sunshade mechanism provided in this disclosure is shown;

[0033] Figure 3 It shows Figure 1 A magnified view of a section at point A in the middle;

[0034] Figure 4 It shows Figure 3 A schematic diagram of the structure after removing some components;

[0035] Figure 5 It shows Figure 1 A magnified view of a section at point B in the middle;

[0036] Figure 6 It shows Figure 5 A schematic diagram of the structure after removing some components;

[0037] Figure 7 A cross-sectional view showing the position of the movable plate of the instant-stop sunshade mechanism is shown.

[0038] The labels in the attached diagram are explained as follows:

[0039] 1-Roller;

[0040] 2-Crossbeam; 21-Limiting groove;

[0041] 3-Sunshade curtain;

[0042] 4-Moving plate; 41-First layer moving plate; 411-First end;

[0043] 421 - Second end; 42 - Second layer moving plate;

[0044] 5-Rack and pinion belt; 6-First gear; 7-Second gear;

[0045] 8-Gear seat; 81-Limit block;

[0046] 9-Tension device;

[0047] 10-Guiding device; 101-Guiding groove; 1011-First guide groove; 1012-Second guide groove;

[0048] 1013 - Third guide groove; 102 - First stop bar; 103 - Second stop bar; 104 - Third stop bar. Detailed Implementation

[0049] The exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments to aid understanding, and should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0050] Sunshades in cars can be equipped with sunshade mechanisms, allowing adjustment of the shaded area by changing the coverage of the sunshade curtain. However, in existing technology, some sunshades cannot be instantly stopped and are easily disturbed, making it difficult to remain stably in a fixed position. For example, the inertia generated by starting or stopping the vehicle can cause the sunshade to move, which severely impacts the user experience. On the other hand, sunshade mechanisms that can instantly stop the sunshade have a more robust structure and occupy more space.

[0051] The instant-stop sunshade mechanism and vehicle provided in this disclosure are intended to solve at least one of the above-mentioned technical problems of the prior art.

[0052] This disclosure provides an instant-stop sunshade mechanism. Figure 1 A schematic diagram of the structure of the instant-stop sunshade mechanism provided in an embodiment of this disclosure is shown. Figure 2A lateral cross-sectional view of an instant-stop sunshade mechanism provided in this disclosure is shown. Figure 1 and Figure 2 As shown, the instant-stop sunshade mechanism provided in this embodiment can be installed on the sunroof of a car, such as... Figure 1 and Figure 2 As shown, the stop-type sunshade mechanism includes a roller 1, a crossbeam 2, a sunshade curtain 3, a movable plate 4, and two annular toothed belts 5. Figure 3 It shows Figure 1 A magnified view of a portion of point A in the middle. Figure 4 It shows Figure 3 A structural diagram after removing some components, as shown below. Figure 3 and Figure 4 As shown, the two ends of the roller shaft 1 are respectively provided with a first gear 6 coaxial with the roller shaft 1. Figure 5 It shows Figure 1 A magnified view of a section at point B. Figure 6 It shows Figure 5 A structural diagram after removing some components, as shown below. Figure 5 and Figure 6 As shown, two second gears 7 are provided on the crossbeam 2, each second gear 7 corresponding to a first gear 6. Each rack belt 5 is fitted onto a corresponding set of first gears 6 and second gears 7, and the rack belt 5 enables the linkage of the first gears 6 and second gears 7. Here, the space between the roller shaft 1 and the crossbeam 2 corresponds to the sunroof area of ​​the car. The sunshade 3 surrounds the roller shaft 1 to form a double-sided structure. The first sides of the upper and lower layers of the sunshade 3 are connected to the movable plate 4, and the second sides of the upper and lower layers of the sunshade 3 are connected to the rack belts 5 of the upper and lower layers. Here, the rack belt 5 and the second side of the sunshade 3 can be regarded as a single unit. The movable plate 4 is used to move between the roller shaft 1 and the crossbeam 2 to adjust the coverage area of ​​the sunshade 3, thereby changing the area of ​​the sunroof that is covered. It can be understood that the sunshade 3 has two sides, the first side and the second side, which are perpendicular to each other. When using the instant-stop sunshade mechanism, the sunshade curtain 3 can be moved by pulling the movable plate 4. Since the second side of the sunshade curtain 3 is connected to the rack and pinion belt 5, the sunshade curtain 3 will also drive the second gear 7 to rotate through the rack and pinion belt 5. In other words, the motion mechanism composed of the first gear 6, the second gear 7, and the rack and pinion belt 5 is linked with the sunshade curtain 3. Based on this motion mechanism, the sunshade curtain 3 can be stopped instantly, and the cooperation between the rack and pinion belt 5 and the first gear 6 and the second gear 7 can also make the sunshade curtain stop stably in a fixed position. In addition, the sunshade curtain 3 does not need to be rolled up entirely on the roller 1. Instead, the sunshade curtain 3 wraps around the roller 1 to form a double-layer structure. This can reduce the space occupied by the sunshade curtain 3 in the retracted state and also reduce the weight that the vehicle body position corresponding to the roller 1 needs to bear.

[0053] It is understandable that installation errors may cause the rack belt 5 to become loose, or it may become loose due to weakened elasticity after long-term use. A loose rack belt 5 will seriously affect the transmission effect. In order to keep the rack belt 5 always taut, such as... Figure 5 and Figure 6 As shown, a movable gear seat 8 can be installed on the crossbeam 2, and a second gear 7 is installed on the gear seat 8. It is understood that the gear seat 8 can move within a preset range on the crossbeam 2, and the second gear 7 can rotate relative to the gear seat 8. A tension device 9 is also installed on the crossbeam 2, and the tension device 9 is connected to the gear seat 8 in a transmission connection. The tension device 9 can apply a first driving force to the gear seat 8, driving it away from the first gear 6. Under the action of the first driving force, the gear seat 8 and the second gear 7 are always in a tendency to move away from the first gear 6, ensuring that the rack belt 5 is in a taut state.

[0054] Optionally, in some embodiments, the tension device 9 includes a spring, the extension direction of which is parallel to the length direction of the rack belt 5. One end of the spring is connected to the crossbeam 2, and the other end is connected to the gear seat 8. The spring can use its elasticity to apply a first driving force to the gear seat 8, driving the gear seat 8 away from the first gear 6.

[0055] Optionally, in some embodiments, to avoid excessive displacement of the gear seat 8 and to limit the movement of the gear seat 8 to a direction parallel to the rack belt 5, a limiting block 81 can be provided at the bottom of the gear seat 8, and a limiting groove 21 can be provided on the crossbeam 2. The limiting block 81 is disposed inside the limiting groove 21, wherein the size of the limiting groove 21 is larger than the size of the limiting block 81 in the direction parallel to the first driving force. Since the limiting block 81 at the bottom of the gear seat 8 can only move within the space defined by the limiting groove 21, the position and direction of movement of the gear seat 8 are limited.

[0056] Alternatively, in some embodiments, such as Figure 2 As shown, the movable plate 4 includes a first movable plate 41 and a second movable plate 42 stacked together. The first side of the upper layer of the sunshade curtain 3 is connected to the first movable plate 41, and the first side of the lower layer of the sunshade curtain 3 is connected to the second movable plate 42. When it is necessary to increase the coverage area of ​​the sunshade curtain 3, the first movable plate 41 is dragged towards the crossbeam 2, and the second movable plate 42 moves towards the roller shaft 1 under the action of the sunshade curtain 3, thus increasing the area of ​​the skylight that is covered. When it is necessary to reduce the coverage area of ​​the sunshade curtain 3, the second movable plate 42 is dragged towards the crossbeam 2, and the first movable plate 41 moves towards the roller shaft 1 under the action of the sunshade curtain 3, thus reducing the area of ​​the skylight that is covered.

[0057] In some embodiments of this disclosure, the stop-type sunshade mechanism further includes a guide device 10, such as... Figure 2As shown, the guide device 10 is disposed between the roller 1 and the crossbeam 2. Figure 7 A cross-sectional view showing the position of the movable plate of the instant-stop sunshade mechanism is shown, as follows. Figure 1 , Figure 2 and Figure 7 As shown, the guide device 10 is provided with a guide groove 101 parallel to the rack belt 5. The rack belt 5, the first end 411 of the first moving plate 41, and the second end 421 of the second moving plate 42 are all located inside the guide groove 101. Specifically, the stop-type sunshade mechanism includes two parallel guide devices 10, and the roller 1, the crossbeam 2, and the guide devices 10 form a frame. The guide device 10 can ensure that the moving direction of the rack belt 5, the first moving plate 41, and the second moving plate 42 will not deviate significantly.

[0058] In some embodiments of this disclosure, such as Figure 2 and Figure 7 As shown, the guide groove 101 includes a first guide groove 1011, a second guide groove 1012, and a third guide groove 1013 arranged in a stacked manner. That is, the second guide groove 1012 is located in the middle, and the first guide groove 1011 and the third guide groove 1013 are located on the upper and lower sides of the second guide groove 1012. The upper layer of the rack belt 5 is located in the first guide groove 1011, and the lower layer of the rack belt 5 is located in the third guide groove 1013. The first end 411 of the first layer moving plate 41 and the second end 421 of the second layer moving plate 42 are both located in the second guide groove 1012.

[0059] Optionally, such as Figure 7 As shown, the upper layer of the rack belt 5 is close to the bottom surface of the first guide groove 1011. The bottom surface of the first guide groove 1011 is provided with a first stop bar 102 to prevent the rack belt 5 from sliding out. Here, the cross-section of the first guide groove 1011 is a structure that is closed on three sides and open on one side. The first stop bar 102 is set at the opening to prevent the rack belt 5 from sliding out of the first guide groove 1011 from the opening, thereby ensuring that the movement direction of the upper rack belt 5 will not deviate significantly.

[0060] Optionally, such as Figure 7 As shown, the lower layer of the rack belt 5 is close to the top surface of the third guide groove 1013. The top surface of the third guide groove 1013 is provided with a second stop 103 to prevent the rack belt 5 from sliding out. Here, the cross-section of the first guide groove 1011 is a structure that is closed on three sides and open on one side. The second stop 103 is set at the opening to prevent the rack belt 5 from sliding out of the third guide groove 1013 from the opening, thereby ensuring that the movement direction of the lower rack belt 5 will not deviate significantly.

[0061] Optionally, such as Figure 7As shown, the first end 411 of the first moving plate 41 is close to the top surface of the second guide groove 1012, and the second end 421 of the second moving plate 42 is close to the bottom surface of the second guide groove 1012. The top surface of the second guide groove 1012 is provided with a third stop 104 to prevent the first end 411 from sliding out, and the bottom surface of the second guide groove 1012 is provided with a groove to prevent the second end 421 from sliding out. Here, the cross-section of the second guide groove 1012 is a structure that is closed on three sides and open on one side. The third stop 104 is located at the opening to prevent the first end 411 of the first moving plate 41 from sliding out of the third guide groove 1013 from the opening, thereby ensuring that the moving direction of the first moving plate 41 does not deviate significantly. The bottom of the second end 421 is provided with a protrusion located in the groove to prevent the second end 421 of the second moving plate 42 from sliding out of the third guide groove 1013 from the opening, thereby ensuring that the moving direction of the second moving plate 42 does not deviate significantly.

[0062] Based on the same inventive concept, this disclosure provides an automobile that includes the aforementioned instant-stop sunshade mechanism.

[0063] The specific embodiments described above do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A stop-and-go sunshade mechanism, characterized in that, include: A roller shaft, wherein each of the two ends of the roller shaft is provided with a first gear coaxial with the roller shaft; A crossbeam, on which two second gears are provided, each second gear corresponding to one of the first gears; Two annular rack belts, each of which is fitted onto a corresponding set of the first gear and the second gear; The sunshade curtain and the movable plate are provided. The sunshade curtain surrounds the roller shaft to form a double-sided structure. The movable plate includes a first movable plate and a second movable plate stacked on top of each other. The first side of the upper layer of the sunshade curtain is connected to the first movable plate, and the first side of the lower layer of the sunshade curtain is connected to the second movable plate. The second sides of the upper and lower layers of the sunshade curtain are connected to the upper and lower toothed belts. The movable plate is used to move between the roller shaft and the crossbeam to adjust the coverage area of ​​the sunshade curtain. When it is necessary to increase the coverage area of ​​the sunshade curtain, the first movable plate moves towards the crossbeam, and the second movable plate moves towards the roller shaft. When it is necessary to reduce the coverage area of ​​the sunshade curtain, the first movable plate moves towards the roller shaft, and the second movable plate moves towards the crossbeam.

2. The instant-stop sunshade mechanism according to claim 1, characterized in that, A movable gear seat is provided on the crossbeam, and the second gear is disposed on the gear seat; The crossbeam is also equipped with a tensioning device, which is connected to the gear seat and is used to apply a first driving force to the gear seat to drive the gear seat away from the first gear, so that the rack belt is taut.

3. The instant-stop sunshade mechanism according to claim 2, characterized in that, The tension device includes a spring, the extension and retraction direction of which is parallel to the length direction of the rack belt; One end of the spring is connected to the crossbeam, and the other end of the spring is connected to the gear seat.

4. The instant-stop sunshade mechanism according to claim 2, characterized in that, The bottom of the gear seat is provided with a limiting block, the crossbeam is provided with a limiting groove, and the limiting block is disposed inside the limiting groove; In a direction parallel to the first driving force, the size of the limiting groove is larger than the size of the limiting block.

5. The instant-stop sunshade mechanism according to claim 1, characterized in that, A guiding device is disposed between the roller and the crossbeam; The guiding device is provided with a guide groove parallel to the rack belt, and the rack belt, the first end of the first layer moving plate, and the second end of the second layer moving plate are all located inside the guide groove.

6. The instant-stop shading mechanism according to claim 5, characterized in that, The guide groove includes a first guide groove, a second guide groove, and a third guide groove arranged in a stacked manner; The upper layer of the rack belt is located in the first guide groove, the lower layer of the rack belt is located in the third guide groove, and the first end of the first layer moving plate and the second end of the second layer moving plate are both located in the second guide groove.

7. The instant-stop shading mechanism according to claim 6, characterized in that, The upper layer of the rack belt is close to the bottom surface of the first guide groove, and the bottom surface of the first guide groove is provided with a first stop bar to prevent the rack belt from sliding out. The lower layer of the rack belt is close to the top surface of the third guide groove, and the top surface of the third guide groove is provided with a second stop bar to prevent the rack belt from sliding out.

8. The instant-stop sunshade mechanism according to claim 6, characterized in that, The first end of the first layer movable plate is close to the top surface of the second guide groove, and the second end of the second layer movable plate is close to the bottom surface of the second guide groove; The top surface of the second guide groove is provided with a third stop bar to prevent the first end from sliding out, and the bottom surface of the second guide groove is provided with a groove to prevent the second end from sliding out.

9. A car, characterized in that, Includes the instant-stop shading mechanism as described in any one of claims 1-8.

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