Multifunctional movable cross beam device for inner ceiling of automobile

Abstract

The utility model provides a multifunctional movable cross beam device for an automobile inner ceiling, which comprises a cross beam assembly, a movable cross beam assembly and a movable cross beam assembly, the driving assemblies are mounted at the left end and the right end of the cross beam assembly; the guide rail assemblies are installed in the positions, on the two sides of the ceiling in the automobile, of the automobile body in a hidden mode and matched with the driving assembly to guide the driving assembly to move in the front-back direction. And the wiring assembly is used for supplying power to the multifunctional movable beam device for the inner ceiling of the automobile and transmitting signals. Various services can be provided for all passengers in the vehicle through front-back movement of the cross beam assembly.

Description

Technical Field

[0001] The utility model relates to the layout of passenger service functional components in an automobile. Background Art

[0002] There are many functional components in the car interior that provide various services for all passengers. Therefore, it is necessary for these functional components to be movable in the front-rear direction so that they can be operated by all passengers from the front row to the back row.

[0003] German patent publication DE 19939972A discloses a projection screen arranged on the roof of a vehicle. The function of the patent publication is single, and the position cannot be adjusted by sliding, so it cannot meet the intelligent needs of the smart cockpit.

[0004] The information disclosed in the background part of the present invention is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a multifunctional movable crossbeam device arranged on the roof of a vehicle, which integrates a variety of functional components and can move in the front and rear directions, thereby providing various services for all passengers in the vehicle.

[0006] The utility model provides a multifunctional movable crossbeam device for a car interior ceiling, comprising:

[0007] A crossbeam assembly, in which a variety of functional components are integrated;

[0008] A drive assembly, which is installed at the left and right ends of the crossbeam assembly;

[0009] A guide rail assembly, which is hidden and installed in the vehicle body on both sides of the interior ceiling and cooperates with the drive assembly to guide the drive assembly to move in the front-rear direction; and

[0010] The wiring assembly is used to supply power and transmit signals to the multifunctional movable crossbeam device on the interior ceiling of the vehicle.

[0011] In the above-mentioned multifunctional movable crossbeam device for the interior ceiling of a car, the crossbeam assembly may have a crossbeam housing, and the various functional components are installed in the crossbeam housing, and the various functional components include an electronic keypad screen, a glasses case that can be turned on or off, a speaker, a side interior light, a central interior light, and a projection screen that allows expansion / retraction. As an embodiment, the projection screen has a handle for expansion or retraction. As another embodiment, the projection screen is an electrically expandable / retractable projection screen.

[0012] In one embodiment of the above-mentioned multifunctional movable crossbeam device for the automobile interior ceiling,

[0013] The drive assembly includes a drive body with a hollow structure, an upper motor and a lower motor installed in the hollow structure, an upper drive shaft assembly connected to the upper motor, and a lower drive shaft assembly connected to the lower motor; the upper drive shaft assembly includes an upper drive shaft, an upper gear located on the upper drive shaft, and an upper guide wheel located at the end of the upper drive shaft; the lower drive shaft assembly includes a lower drive shaft, a lower gear located on the lower drive shaft, and a lower guide wheel located at the end of the lower drive shaft;

[0014] The guide rail assembly includes an upper rack, a lower rack, an upper guide groove, a lower guide groove and a wiring groove;

[0015] The upper gear is meshed with the upper rack, and the upper guide wheel is embedded in the upper guide groove and can move along the upper guide groove; the lower gear is meshed with the lower rack, and the lower guide wheel is embedded in the lower guide groove and can move along the lower guide groove.

[0016] Preferably, the upper gear includes an upper inner gear and an upper outer gear which are spaced apart from each other, the upper inner gear and the upper outer gear have exactly the same structure, and the gear tooth positions are aligned with each other; the lower gear includes a lower inner gear and a lower outer gear which are spaced apart from each other, the lower inner gear and the lower outer gear have exactly the same structure, and the gear tooth positions are aligned with each other.

[0017] In the above-mentioned multifunctional movable crossbeam device for the automobile interior ceiling, the wiring assembly passes through the interior of the crossbeam assembly and the interior of the drive assembly in sequence, and then extends along the wiring groove of the guide rail assembly, wherein the wiring assembly is respectively connected to the electronic keypad screen, the glasses case, the speaker, the side interior light, the central interior light, the upper motor and the lower motor.

[0018] The utility model also provides a multifunctional movable crossbeam device for a car interior ceiling, comprising:

[0019] A crossbeam assembly, in which a variety of functional components are integrated;

[0020] The front electric reel is fixedly mounted on the front left and right sides of the roof inside the car;

[0021] Rear electric reels, which are fixedly mounted on the rear left and right sides of the roof inside the vehicle; and

[0022] The cables are respectively located on the left and right sides of the interior ceiling of the vehicle, with the middle part of the cables being fixedly connected to the end of the crossbeam assembly, and the two ends of the cables being respectively fixedly connected to the front electric reel and the rear electric reel;

[0023] When the front electric reel rotates to wind up the cable, it drives the rear electric reel to rotate and release the cable forward; when the rear electric reel rotates to wind up the cable, it drives the front electric reel to rotate and release the cable backward.

[0024] Technical effects of the utility model:

[0025] 1. As a multifunctional mobile beam device, it can provide a variety of entertainment and comfort functions for passengers in the car.

[0026] 2. The crossbeam assembly can move forward and backward on the vehicle roof, so that passengers in the front and rear rows can experience the functions it carries.

[0027] 3. The multifunctional movable crossbeam device of the automobile interior ceiling of the utility model can change the functions it carries according to its configuration, thereby providing a variety of functional changes according to the needs of different passengers and different vehicle models.

[0028] 4. Compared with traditional cars, the car adopting the utility model has more entertainment and practical functions, so it is more competitive and helps to increase sales.

[0029] It should be understood that the terms "vehicle" or "vehicular" or other similar terms used herein generally include motor vehicles, such as passenger vehicles including sport utility vehicles (SUVs), buses, trucks, various commercial vehicles, vessels including various boats, ships, aircraft, etc., and include hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (e.g., fuels derived from energy sources other than gasoline).

[0030] The method and device of the present invention have other characteristics and advantages, which will be obvious from the drawings incorporated herein and the subsequent specific embodiments, or will be described in detail in the drawings incorporated herein and the subsequent specific embodiments, which are used together to explain the specific principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The utility model shows an embodiment of the multifunctional movable cross beam device for the interior ceiling of an automobile.

[0032] Figure 2 A schematic diagram of the rear side of the cross member assembly is shown.

[0033] Figure 3 A schematic diagram of the front side of the cross member assembly is shown.

[0034] Figure 4 A schematic diagram of the underside of the crossmember assembly is shown.

[0035] Figure 5A A schematic diagram showing the projection screen in an open state.

[0036] Figure 5B Shows Figure 4 Magnified view of part A in FIG.

[0037] Fig. 6A The drive assembly is shown on the left. Figure 6B A schematic diagram of the drive assembly is shown on the right.

[0038] Figure 7 An exploded view of the drive assembly on the left and the drive assembly on the right is shown.

[0039] Fig. 8A The left side rail of the rail assembly is shown.

[0040] Figure 8B The right side rail of the rail assembly is shown.

[0041] Fig. 9 A cross-sectional view of the guide rail assembly is shown.

[0042] Fig.10 A schematic diagram showing the matching status of the drive assembly and the guide rail assembly.

[0043] Fig.11 Shows Fig.10 Longitudinal cross-sectional view of the mating state in .

[0044] Fig.12 Shows Fig.10 Transverse cross-sectional view of the mating state in .

[0045] Fig.13 The utility model shows a schematic diagram of a wiring assembly in a multifunctional movable crossbeam device for an automobile interior ceiling.

[0046] Fig.14 A schematic diagram showing the wiring assembly connected to the speakers.

[0047] Fig.15 A modified example of the multifunctional movable crossbeam device for the interior ceiling of an automobile of the present utility model is shown.

[0048] Fig.16 Shows Fig.15 Detail of a variation of the cable being wound around a motorized reel.

[0049] Reference numerals:

[0050] Front electric reel 20a

[0051] Rear electric reel 20b

[0052] Cable 30

[0053] 100,100' beam assembly

[0054] 101 Beam shell

[0055] 110 Electronic keypad screen

[0056] 120 glasses case

[0057] 130 Speakers

[0058] 140 Side interior lights

[0059] 150 Central interior light

[0060] 160 Projection Screen

[0061] 200 Drive assembly

[0062] 210 drive body

[0063] 211 Hollow Structure

[0064] 220 Upper motor

[0065] 230 Lower motor

[0066] 240 Upper drive shaft assembly

[0067] 250 Lower drive shaft assembly

[0068] 241 Upper drive shaft

[0069] 251 Lower drive shaft

[0070] 242 Upper inner gear

[0071] 243 Upper outer gear

[0072] 252 Lower inner gear

[0073] 253 Lower outer gear

[0074] 244 Upper guide wheel

[0075] 254 Lower guide wheel

[0076] 300 Guide rail assembly

[0077] 310 Upper rack

[0078] 310' lower rack

[0079] 320 Upper guide groove

[0080] 330 Lower guide groove

[0081] 340 Cable duct

[0082] 400 Wiring assembly.

[0083] It should be understood that the accompanying drawings are not necessarily drawn to scale, and they show various features of the basic principles of the utility model that have been simplified to a certain extent. The specific design features of the utility model disclosed herein, including, for example, specific dimensions, orientations, positioning and shapes, will be determined in part by the application and use environment of the specific purpose.

[0084] In the drawings, reference numbers refer to the same or equivalent parts of the present invention throughout the several figures of the drawing. DETAILED DESCRIPTION

[0085] Hereinafter, an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings shown. The exemplary embodiment is an example and can be implemented in various forms by those skilled in the art. Therefore, the present invention is not limited to the exemplary embodiment described in this article.

[0086] Figure 1 The utility model shows an embodiment of the multifunctional movable cross beam device for the interior ceiling of an automobile.

[0087] like Figure 1 As shown, the multifunctional movable cross beam device for the interior ceiling of the automobile of the present invention comprises a cross beam assembly 100, a driving assembly 200 installed at the left and right ends of the cross beam assembly 100, a guide rail assembly 300 that cooperates with the driving assembly 200 and guides the movement of the driving assembly 200, and a wiring assembly 400 that supplies power and transmits signals to the multifunctional movable cross beam device for the interior ceiling of the automobile. The guide rail assembly 300 is hidden and installed in the vehicle body on both sides of the ceiling. Figure 1 The direction of arrow F in FIG. 1 is the forward direction, and the direction of arrow R is the rearward direction.

[0088] Figure 2 A schematic diagram of the rear side of the cross member assembly is shown. Figure 3 A schematic diagram of the front side of the cross member assembly is shown. Figure 4 A schematic diagram of the underside of the crossmember assembly is shown.

[0089] like Figure 2 , Figure 3 , Figure 4 As shown, the crossbeam assembly 100 has a crossbeam housing 101 , and various functional components may be disposed in the crossbeam housing 101 .

[0090] As an example, the cross beam housing 101 is provided with an electronic key screen 110, a glasses box 120, a speaker 130, a side interior lamp 140, a central interior lamp 150 and a projection screen 160. The electronic key screen 110 and the glasses box 120 are installed on the rear side of the cross beam housing 101, the speaker 130 is installed on the front and rear sides of the cross beam housing 101, the projection screen 160 is installed on the lower side of the cross beam housing 101, the central interior lamp 150 is installed in the middle of the lower surface of the cross beam housing 101, and the side interior lamps 140 are installed on the left and right sides of the lower surface of the cross beam housing 101 respectively.

[0091] Figure 5A Figure 1 shows a diagram of the projection screen being turned on. Figure 5A As shown, there is a handle below the projection screen 160, and the projection screen 160 can be unfolded by pulling the handle and can be folded by opening the handle. As a rotation, the projection screen 160 can also be unfolded and folded in an electric manner.

[0092] The projection screen can be moved from the crossbar assembly to the vehicle's front windshield to provide UV protection.

[0093] Figure 5B Shows Figure 4 This is an enlarged view of part A. Figure 5B As shown, the end of the beam housing 101 of the beam assembly 100 has a pair of lugs 102, and the lugs 102 have mounting holes 103. The mounting holes 103 of the two lugs 102 have a common axis. The mounting holes 103 of the lugs 102 are used to mount (for example, by bolt connection) the drive assembly 200.

[0094] Fig. 6A , Figure 6B The utility model shows the driving assemblies 200 on the left and right sides of the multifunctional movable cross beam device for the interior ceiling of an automobile. Fig. 6A The drive assembly 200 is shown on the left side. Figure 6B The drive assembly 200 is shown on the right side.

[0095] Figure 7 The driving assembly 200 is shown in a perspective exploded view. The driving assemblies 200 on the left and right sides have the same structure, but are installed in opposite directions.

[0096] like Figure 7 As shown, the drive assembly 200 includes a drive body 210 , an upper motor 220 and a lower motor 230 installed in a hollow structure 211 of the drive body 210 , and an upper drive shaft assembly 240 connected to the upper motor 220 , and a lower drive shaft assembly 250 connected to the lower motor 230 .

[0097] The upper drive shaft assembly 240 includes an upper drive shaft 241, an upper inner gear 242 and an upper outer gear 243 mounted in parallel on the upper drive shaft 241, and an upper guide wheel 244 mounted at the end of the upper drive shaft 241. The upper inner gear 242 and the upper outer gear 243 are identical in structure, and the positions of the gear teeth are aligned with each other. The upper inner gear 242 and the upper outer gear 243 are used to cooperate with the same rack, so that the weight can be reduced while the load-bearing capacity can be improved.

[0098] Of course, the upper inner gear 242 and the upper outer gear 243 may also be combined into an integral upper gear to simplify the structure.

[0099] As an alternative embodiment, the upper drive shaft 241, the upper inner gear 242, the upper outer gear 243 and the upper guide wheel 244 of the upper drive shaft assembly 240 can be formed in one piece, which can improve the strength and rigidity of the entire assembly and reduce the assembly process.

[0100] The lower drive shaft assembly 250 includes a lower drive shaft 251, a lower inner gear 252 and a lower outer gear 253 mounted in parallel on the lower drive shaft 251, and a lower guide wheel 254 mounted at the end of the lower drive shaft 251. The lower inner gear 252 and the lower outer gear 253 are identical in structure, and the positions of the gear teeth are aligned with each other. The upper inner gear 242 and the upper outer gear 243 are used to cooperate with the same rack, so that the weight can be reduced while improving the load-bearing capacity.

[0101] Of course, the lower inner gear 252 and the lower outer gear 253 may also be combined into an integral lower gear to simplify the structure.

[0102] Likewise, as an alternative embodiment, the lower drive shaft 251, the lower inner gear 252, the lower outer gear 253 and the lower guide wheel 254 of the lower drive shaft assembly 250 can be formed in one piece, which can improve the strength and rigidity of the entire assembly and reduce the assembly process.

[0103] Fig. 8A The left side rail of the rail assembly 300 is shown. Figure 8B The right side rail of the rail assembly 300 is shown. The left side rail and the right side rail of the rail assembly 300 can be installed on the left and right sides of the interior of the vehicle roof by bolts.

[0104] like Fig. 8A , Figure 8B As shown, the left guide rail and the right guide rail of the guide rail assembly 300 have the same structure, but are installed in opposite directions. The left guide rail and the right guide rail of the guide rail assembly 300 both include racks.

[0105] Fig. 9Taking the right side guide rail as an example, a cross-sectional schematic diagram of the guide rail assembly 300 is shown.

[0106] like Fig. 9 As shown, the guide rail assembly 300 is generally in an inverted "T" shape, including a horizontal plate and a side plate, the upper surface of the horizontal plate is formed with an upper rack 310 and an upper guide groove 320, the lower surface of the horizontal plate is formed with a lower rack 310' and a lower guide groove 330, and the side plate is formed with a wiring groove 340. The side plate is used to connect to the two sides of the ceiling in the car, so that the guide rail assembly 300 is hidden and installed in the car body on both sides of the ceiling.

[0107] Fig.10 Taking the right side as an example, a schematic diagram showing the drive assembly 200 being installed in cooperation with the guide rail assembly 300 is shown. Fig.11 It is along Fig.10 A schematic diagram obtained by a longitudinal section where the upper inner gear 242 and the lower inner gear 252 are located. Fig.12 It is along Fig.10 A schematic diagram of a longitudinal section of the upper drive shaft 241 and the lower drive shaft 251 of the drive assembly 200.

[0108] like Fig.10 , Fig.11 , Fig.12 As shown, the upper inner gear 242 and the upper outer gear 243 of the drive assembly 200 are meshed with the upper rack 310 of the guide rail assembly 300, and the upper guide wheel 244 is embedded in the upper guide groove 320 and can move along the upper guide groove 320; the lower inner gear 252 and the lower outer gear 253 are meshed with the lower rack 310' of the guide rail assembly 300, and the lower guide wheel 254 is embedded in the lower guide groove 330 and can move along the lower guide groove 330.

[0109] Fig.13 The figure shows a schematic diagram of the wiring assembly 400 in the multifunctional movable crossbeam device for the interior ceiling of an automobile of the present invention. To facilitate the display of the direction of the wiring assembly 400, other components are drawn to be transparent. Fig.13 As shown, the wiring assembly 400 passes through the wiring grooves 340 of the beam assembly 100 , the drive assembly 200 and the guide rail assembly 300 .

[0110] The wiring assembly 400 passes through the interior of the crossbeam assembly 100 and the interior of the drive assembly 200 in sequence, and then extends along the wiring groove 340 of the guide rail assembly 300. The wiring assembly 400 includes a wiring harness for power supply and signal transmission, and the corresponding branch wires in the wiring harness are electrically connected to the electronic key screen 110, the glasses box 120, the speaker 130, the side interior lamp 140, the upper motor 220 and the lower motor 230 respectively.

[0111] As an example, Fig.14It is shown that the wires in the wiring assembly 400 are electrically connected to the speaker 130. The connection of the wiring assembly 400 to the electronic key screen 110, the glasses case 120, the side interior light 140, the upper motor 220 and the lower motor 230 is similar.

[0112] Fig.15 A modified example of the multifunctional movable crossbeam device for the interior ceiling of an automobile of the present utility model is shown. Fig.15 Only the right half of this variation is shown; the structure of the left half is exactly the same.

[0113] like Fig.15 As shown, Figures 1 to 16 Compared with the embodiment shown in , the main change of this variant is that the driving mode is changed from gear rack meshing drive to cable traction drive.

[0114] The specific structure of this modified example includes: a crossbeam assembly 100'; a front electric reel 20a and a rear electric reel 20b, which are fixedly installed at the front and rear of the left and right sides of the interior ceiling of the car; a cable 30, the middle of which is fixedly connected to the end of the crossbeam assembly 100, and the two ends of which are respectively fixedly connected to the front electric reel 20a and the rear electric reel 20b. At any time, when the front electric reel 20a rotates to wind up the cable 30, the rotation of the rear electric reel 20b releases the cable 30 forward; conversely, when the rear electric reel 20b rotates to wind up the cable 30, the rotation of the front electric reel 20a releases the cable 30 backward. As a result, the crossbeam assembly 100' is pulled forward (F direction) or backward (R direction).

[0115] Likewise, various functional components may be installed in the crossbeam assembly 100 ′, for example, an electronic keypad screen, a glasses case, a speaker, a side interior light, a central interior light, a projection screen, and the like.

[0116] The front motorized reel 20a and the rear motorized reel 20b are typically motor-driven reels.

[0117] Fig.16 Shows Fig.15 Detail of a variation of the cable being wound around a motorized reel.

[0118] like Fig.16 As shown, the cable 30 is wound around the rear electric reel 20b. The winding relationship of the cable 30 on the front electric reel 20a is similar.

[0119] The utility model is a multifunctional movable crossbeam device for the interior ceiling of a car. The crossbeam assembly is driven forward and backward by a motor. The electronic keypad screen, projection screen, interior light, speaker, and glasses case device integrated in the crossbeam assembly are connected with the intelligent needs of the intelligent cockpit to provide passengers with a variety of comfort service functions. In addition, passengers can also control the audio and video entertainment system and adjust the seat angle through the electronic keypad screen.

[0120] For convenience in explanation and precise definition of the appended claims, the terms “upper,” “lower,” “inner,” and “outer” are used to describe features of the exemplary embodiments with reference to the positions of such features as shown in the figures.

[0121] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to be exhaustive of the utility model, or to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that other technicians in the field can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the attached claims and their equivalents.

Claims

1. A multifunctional movable crossbeam device for a car interior ceiling, characterized in that: include: A crossbeam assembly (100) in which a variety of functional components are integrated; A driving assembly (200) mounted on the left and right ends of the crossbeam assembly (100); A guide rail assembly (300) is concealed and installed in the vehicle body on both sides of the interior ceiling of the vehicle, and cooperates with the drive assembly (200) to guide the drive assembly (200) to move in the front-rear direction; as well as The wiring assembly (400) is used to supply power and transmit signals to a multifunctional movable crossbeam device on the interior ceiling of an automobile.

2. The multifunctional movable crossbeam device for the automobile interior ceiling according to claim 1, characterized in that: The crossbeam assembly (100) has a crossbeam housing (101), and the various functional components are installed in the crossbeam housing (101), and the various functional components include an electronic keypad screen (110), a glasses box (120) that can be opened or closed, a speaker (130), a side interior light (140), a central interior light (150), and a projection screen (160) that allows for deployment / retraction.

3. The multifunctional movable crossbeam device for the interior ceiling of a car according to claim 2, characterized in that: The projection screen (160) has a handle for unfolding or folding the projection screen.

4. The multifunctional movable crossbeam device for the interior ceiling of an automobile according to claim 2, characterized in that: The projection screen (160) is an electrically unfoldable / foldable projection screen.

5. The multifunctional movable crossbeam device for the interior ceiling of an automobile according to claim 2, characterized in that: The drive assembly (200) comprises a drive body (210) having a hollow structure (211), an upper motor (220) and a lower motor (230) installed in the hollow structure (211), an upper drive shaft assembly (240) connected to the upper motor (220), and a lower drive shaft assembly (250) connected to the lower motor (230); the upper drive shaft assembly (240) comprises an upper drive shaft (241), an upper gear located on the upper drive shaft (241), and an upper guide wheel (244) located at the end of the upper drive shaft (241); the lower drive shaft assembly (250) comprises a lower drive shaft (251), a lower gear located on the lower drive shaft (251), and a lower guide wheel (254) located at the end of the lower drive shaft (251); The guide rail assembly (300) comprises an upper rack (310), a lower rack (310'), an upper guide groove (320), a lower guide groove (330) and a wiring groove (340); The upper gear is meshed with the upper rack (310), and the upper guide wheel (244) is embedded in the upper guide groove (320) and can move along the upper guide groove (320); the lower gear is meshed with the lower rack (310'), and the lower guide wheel (254) is embedded in the lower guide groove (330) and can move along the lower guide groove (330).

6. The multifunctional movable crossbeam device for the interior ceiling of an automobile according to claim 5, characterized in that: The upper gear comprises an upper inner gear (242) and an upper outer gear (243) which are spaced apart from each other, the upper inner gear (242) and the upper outer gear (243) are completely identical in structure, and the positions of the gear teeth are aligned with each other; the lower gear comprises a lower inner gear (252) and a lower outer gear (253) which are spaced apart from each other, the lower inner gear (252) and the lower outer gear (253) are completely identical in structure, and the positions of the gear teeth are aligned with each other.

7. The multifunctional movable crossbeam device for the interior ceiling of an automobile according to claim 5, characterized in that: The wiring assembly (400) sequentially passes through the interior of the crossbeam assembly (100) and the interior of the drive assembly (200), and then extends along the wiring groove (340) of the guide rail assembly (300), wherein the wiring assembly (400) is respectively connected to the electronic keypad screen (110), the glasses case (120), the speaker (130), the side interior light (140), the central interior light (150), the upper motor (220), and the lower motor (230).

8. A multifunctional movable crossbeam device for a car interior ceiling, characterized in that: include: A crossbeam assembly, in which a variety of functional components are integrated; A front electric reel (20a) is fixedly mounted on the front left and right sides of the roof of the vehicle; A rear electric reel (20b) fixedly mounted on the rear left and right sides of the roof of the vehicle; and The cables (30) are respectively located on the left and right sides of the interior ceiling of the automobile, with the middle portion fixedly connected to the end of the crossbeam assembly (100'), and the two ends respectively fixedly connected to the front electric reel (20a) and the rear electric reel (20b); When the front electric reel (20a) rotates to wind up the cable (30), it drives the rear electric reel (20b) to rotate and release the cable (30) forward; when the rear electric reel (20b) rotates to wind up the cable (30), it drives the front electric reel (20a) to rotate and release the cable (30) backward.

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