Smart roof rack

Abstract

The utility model discloses a smart roof luggage rack belongs to roof luggage rack field, this luggage rack includes parallelly arranged a pair of cross bracing, and cross bracing both ends are connected with a drive assembly respectively, and the drive assembly both ends are connected with the cantilever symmetrically, and the cantilever other end is connected with the bracket jointly. Drive assembly is equipped with two groups of drive motor, and the cantilever rotates through output shaft drive. The inside of cantilever is equipped with upper sprocket, lower sprocket and chain, and upper sprocket is fixed in drive assembly shell, and lower sprocket is fixedly connected with the bracket, and always keeps horizontal in the lifting process through the chain drive and makes the bracket. Cross bracing adopts telescopic structure, adapts to different vehicle models, and is equipped with locking mechanism for fixing the bracket. The utility model has automatic lifting, horizontal keeping, limit control and intelligent locking function, effectively solved the traditional roof luggage rack and is not inconvenient, and the problem of laborsaving and poor stability of operation, realized from " people adapt to tool " to " tool adapts to people " change.

Description

Technical Field

[0001] This utility model relates to the field of roof racks, and particularly to intelligent roof racks. Background Technology

[0002] Currently, most roof racks are fixed structures, meaning the height of the platform cannot be changed once installed. This design has significant drawbacks: users must laboriously lift heavy items to the roof height when loading or unloading luggage, a process that is not only physically demanding, especially for shorter users, but also poses a safety risk of items slipping and injuring people or damaging the vehicle. Furthermore, fixed-height roof racks are inconvenient for different user groups. On the other hand, some adjustable roof racks designed to address this problem often have complex and cumbersome lifting mechanisms, and struggle to maintain a level platform during lifting, leading to items slipping or tipping over, resulting in insufficient stability and reliability. Therefore, the market urgently needs a user-friendly, intelligent roof rack that is easy to operate, provides smooth lifting, and proactively adapts to the user's needs. Utility Model Content

[0003] The main purpose of this utility model is to provide an intelligent roof rack that can effectively solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] The intelligent roof rack includes a pair of parallel cross braces. Each end of the cross brace is connected to a drive assembly. The two ends of the drive assembly are symmetrically connected to a pair of cantilever arms. The drive assembly contains two sets of drive motors, each with an output shaft that drives the cantilever arms to rotate. The other ends of the pair of cantilever arms are connected to a bracket. The cantilever arms contain an upper sprocket and a lower sprocket, as well as a chain connecting the upper and lower sprockets. The upper sprocket is fixedly connected to the drive assembly housing and does not rotate. The lower sprocket is a follower wheel and is fixedly connected to the bracket. The bracket is kept horizontal by the chain drive.

[0006] Preferably, the cross brace includes a cross brace rod, with a retractable round bar movably connected to each end of the cross brace rod and locked at the connection point by bolts and clamps. A claw and a connector are fixedly installed at the end of the round bar. The claw is used to connect to the roof of the vehicle, and the connector is used to connect to the drive assembly.

[0007] Preferably, a control board and an external plug are located in the middle of the housing of the drive assembly. A drive motor is set on each side of the control board. The output end of the drive motor is connected to a reducer. The output end of the reducer is provided with an output shaft. The control board, the external plug, and the drive motor are electrically connected for control. A quick-connect battery is also installed on the outside of the housing of the drive assembly for power supply.

[0008] Preferably, the bracket consists of a side frame and a connecting rod. The output shaft extends into the cantilever and is fixedly connected to the outer shell of the cantilever from the inside. The lower sprocket is movably mounted inside the cantilever via a bearing and is fixedly connected to the side frame. The output shaft drives the cantilever to rotate, and the lower sprocket rotates in the opposite direction in a 1:1 ratio, so that the bracket mounted horizontally on the lower sprocket always maintains horizontal movement.

[0009] Preferably, a connecting flange is fixedly installed at each end of the drive assembly housing, and the upper sprocket is fixedly connected to the connecting flange. An upper limit adjustment block and a lower limit adjustment block are installed on the outer ring of the connecting flange, and the outer ring is marked with a scale to adjust the installation position of the two. An upper limit sensor is installed above the upper limit adjustment block, and a lower limit sensor is installed below the lower limit adjustment block. A stop block is installed on the inner side of the cantilever housing, and the stop block can contact the upper limit sensor and the lower limit sensor as the cantilever rotates.

[0010] Preferably, a locking mechanism is also installed on the cross brace via a pair of clamps. The locking mechanism has a telescopic motor inside, and a locking tongue is movably installed on the upper surface of the locking mechanism to lock the connecting rod. The output end of the telescopic motor is connected to a connecting rod, and the locking tongue is rotated through the connecting rod. The locking mechanism also has a pair of position sensors inside to sense the position of the locking tongue.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model of intelligent roof rack integrates an automatically lifting drive assembly, cantilever, and bracket. It utilizes a sprocket and chain transmission mechanism to ensure that the bracket remains horizontal during the lifting process. Equipped with limit sensors and locking mechanisms, it achieves precise control and safe locking, thus realizing an intelligent transformation from "human adapting to tools" to "tools adapting to humans." Users can lower the roof rack to a comfortable height with just one click, greatly improving operational convenience and safety, and completely eliminating the physical burden and potential risks associated with climbing and lifting objects. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the intelligent roof rack of this utility model;

[0014] Figure 2 This is a schematic diagram of the cross bracing structure of the intelligent roof rack of this utility model;

[0015] Figure 3 This is a schematic diagram of the drive assembly structure of the intelligent roof rack of this utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the cantilever of the intelligent roof rack of this utility model;

[0017] Figure 5 This is a schematic diagram of the cantilever rotation limiting structure of the intelligent roof rack of this utility model.

[0018] Figure 6 This is a schematic diagram of the locking mechanism of the intelligent roof rack of this utility model;

[0019] Figure 7 This is a schematic diagram illustrating the overall installation and use of the intelligent roof rack of this utility model.

[0020] In the diagram: 1. Cross brace; 2. Drive assembly; 3. Cantilever; 4. Bracket; 5. Locking mechanism; 6. Side frame; 7. Connecting rod; 8. Cross brace; 9. Round bar; 10. Connector; 11. Claw; 12. Clamp; 13. Control board; 14. External plug; 15. Drive motor; 16. Reducer; 17. Output shaft; 18. Connecting flange; 19. Upper limit adjustment block; 20. Lower limit adjustment block; 21. Upper limit sensor; 22. Lower limit sensor; 23. Upper sprocket; 24. Lower sprocket; 25. Chain; 26. Stop block; 27. Telescopic motor; 28. Connecting rod; 29. ​​Locking tongue; 30. Position sensor; 31. Shelf; 32. Battery. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figure 1 , Figure 7 As shown, the intelligent roof rack includes a pair of parallel cross braces 1, which are fixedly installed on the roof by clips 11. A drive assembly 2 is connected to each end of the cross brace 1. A pair of cantilever arms 3 are symmetrically connected to the two ends of the drive assembly 2. A bracket 4 is connected to the end of the cantilever arm 3. A shelf 31 can also be installed on the bracket 4. The drive assembly 2 drives the cantilever arm 3 to rotate. Through the transmission action of the internal mechanism of the cantilever arm 3, the bracket 4 remains horizontal while rotating with the cantilever arm 3, ensuring the stability of the luggage placed on it.

[0024] like Figure 2 , Figure 6 As shown, the cross brace 1 includes a cross brace rod 8. Both ends of the cross brace rod 8 are movably connected to a telescopic round rod 9, and are locked at the connection points by bolts and clamps 12. A claw 11 and a connector 10 are fixedly installed at the end of the round rod 9. The claw 11 is used to connect to the roof, and the connector 10 is used to connect to the drive assembly 2. A locking mechanism 5 is also installed on the cross brace 1 via a pair of clamps 12. The locking mechanism 5 contains a telescopic motor 27. A locking tongue 29 is movably installed on the upper surface of the locking mechanism 5 to lock the connecting rod 7. The output end of the telescopic motor 27 is connected to a connecting rod 28, and the connecting rod 28 controls the rotation of the locking tongue 29. A pair of position sensors 30 are also installed inside the locking mechanism 5 to sense the position of the locking tongue 29.

[0025] like Figure 3 As shown, a control board 13 and an external plug 14 are located in the middle of the housing of the drive assembly 2. A drive motor 15 is set on each side of the control board 13. The output end of the drive motor 15 is connected to a reducer 16. The output end of the reducer 16 is provided with an output shaft 17. The control board 13, the external plug 14 and the drive motor 15 are electrically connected for control. A quick-connect battery 32 is also installed on the outside of the housing of the drive assembly 2 for power supply. A button is set on the housing of the drive assembly 2 to operate the control board 13.

[0026] like Figures 4-5As shown, the bracket 4 consists of a side frame 6 and a connecting rod 7. The output shaft 17 extends into the cantilever 3 and is fixedly connected to the outer shell of the cantilever 3 from the inside. The lower sprocket 24 is movably mounted inside the cantilever 3 through a bearing and is fixedly connected to the side frame 6. The output shaft 17 drives the cantilever 3 to rotate, and the lower sprocket 24 will rotate in the opposite direction in a 1:1 ratio, so that the bracket 4, which is horizontally mounted on the lower sprocket 24, always maintains horizontal movement. A connecting flange 18 is fixedly installed at both ends of the drive assembly 2 housing. The upper sprocket 23 is fixedly connected to the connecting flange 18. An upper limit adjustment block 19 and a lower limit adjustment block 20 are installed on the outer ring of the connecting flange 18, and the outer ring is marked with a scale to adjust the installation position of the two. An upper limit sensor 21 is installed above the upper limit adjustment block 19, and a lower limit sensor 22 is installed below the lower limit adjustment block 20. A stop block 26 is installed on the inner side of the cantilever 3 housing. The stop block 26 can contact the upper limit sensor 21 and the lower limit sensor 22 as the cantilever 3 rotates.

[0027] In actual use, the cross brace 1 is first fixedly installed on the roof of the vehicle using the claw 11. When luggage needs to be placed from a lower position to the roof, simply install the quick-connect battery 32 onto the drive assembly 2, then press the lower button on the drive assembly 2. The control board 13 controls the two drive motors 15 to start, and after the speed reduction and torque increase by the reducer 16, the output shaft 17 rotates. Since the output shaft 17 passes through the upper sprocket 23 and extends into the cantilever 3, it is fixedly connected to the housing of the cantilever 3 from the inside. The upper sprocket 23 is fixedly connected to the connecting flange 18 of the housing of the drive assembly 2 and does not rotate. The other end of the cantilever 3 is also movably mounted with a lower sprocket 24 through a bearing, and the lower sprocket 24 also passes through the housing of the cantilever 3 and is fixedly connected to the external bracket 4. In this way, the cantilever 3 rotates with the output shaft 17 while the upper sprocket 23 remains stationary, and the lower sprocket 24 can rotate and is synchronously connected to the upper sprocket 23 by the chain 25. Thus, when the cantilever 3 rotates, the bracket 4 is restricted to maintain its initial horizontal position and remains synchronized with the rotation of the cantilever 3, thereby facilitating the stable placement of luggage. When the cantilever 3 rotates to a certain angle, the stop block 26 installed on its inner side contacts the lower limit sensor 22 on the lower limit adjustment block 20 installed on the connecting flange 18, thereby controlling the drive motor 15 to stop rotating via an electrical signal. At this time, the cantilever 3 and the bracket 4 stop, making it convenient for people to put their luggage on the bracket 4. The outer ring has a scale and the installation position of the lower limit adjustment block 20 can be adjusted, thereby adjusting the rotation angle of the cantilever 3 and thus adjusting the lowering position of the bracket 4.

[0028] After placing the luggage, press the lift button again. The drive motor 15 rotates in the opposite direction. Based on the same principle, the bracket 4 remains horizontal and rises with the rotation of the cantilever 3 until the stop block 26 touches the upper limit sensor 21 on the upper limit adjustment block 19. The electrical signal transmission controls the drive motor 15 to stop, and at the same time, the telescopic motor 27 starts to work. Its output end pushes out and drives the locking tongue 29 to rotate through the connecting rod 28, locking the connecting rod 7 on the bracket 4 and completing the fixation of the bracket 4. The output end touches the position sensor 30 and senses that the locking tongue 29 is in the locked state, thus completing the luggage placement-lifting-fixing process. The whole process is automated and greatly facilitates people's travel.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A smart roof rack, characterized in that: The device includes a pair of parallel cross braces (1), each of which is connected to a drive assembly (2). The two ends of the drive assembly (2) are symmetrically connected to a pair of cantilever arms (3). The drive assembly (2) contains two sets of drive motors (15). The output ends of the drive motors (15) are respectively provided with output shafts (17). The output shafts (17) drive the cantilever arms (3) to rotate. The other ends of the pair of cantilever arms (3) are connected to a bracket (4). The cantilever arms (3) contain an upper sprocket (23) and a lower sprocket (24) and a chain (25) connecting the upper sprocket (23) and the lower sprocket (24). The upper sprocket (23) is fixedly connected to the housing of the drive assembly (2) and does not rotate. The lower sprocket (24) is a follower wheel and is fixedly connected to the bracket (4). The bracket (4) is kept horizontal by the transmission of the chain (25).

2. The intelligent roof rack according to claim 1, characterized in that: The cross brace (1) includes a cross brace rod (8), and the two ends of the cross brace rod (8) are respectively movably connected to a telescopic round rod (9) and locked at the connection by bolts and clamps (12). The end of the round rod (9) is fixedly installed with a claw (11) and a connector (10). The claw (11) is used to connect to the roof of the vehicle, and the connector (10) is used to connect to the drive assembly (2).

3. The intelligent roof rack according to claim 2, characterized in that: The drive assembly (2) has a control board (13) and an external plug (14) located in the middle of its housing. A drive motor (15) is set on each side of the control board (13). The output ends of the drive motors (15) are connected to a reducer (16). The output ends of the reducers (16) are provided with an output shaft (17). The control board (13), the external plug (14), and the drive motors (15) are electrically connected for control. A quick-connect battery (32) is also installed on the outside of the drive assembly (2) for power supply.

4. The intelligent roof rack according to claim 3, characterized in that: The bracket (4) consists of a side frame (6) and a connecting rod (7). The output shaft (17) extends into the cantilever (3) and is fixedly connected to the outer shell of the cantilever (3) from the inside. The lower sprocket (24) is movably installed inside the cantilever (3) through a bearing and is fixedly connected to the side frame (6). The output shaft (17) drives the cantilever (3) to rotate, and the lower sprocket (24) will rotate in the opposite direction in a 1:1 ratio, so that the bracket (4) installed horizontally on the lower sprocket (24) always maintains horizontal movement.

5. The intelligent roof rack according to claim 4, characterized in that: A connecting flange (18) is fixedly installed at both ends of the housing of the drive assembly (2). The upper sprocket (23) is fixedly connected to the connecting flange (18). An upper limit adjustment block (19) and a lower limit adjustment block (20) are installed on the outer ring of the connecting flange (18), and the outer ring is marked with a scale to adjust the installation position of the two. An upper limit sensor (21) is installed above the upper limit adjustment block (19), and a lower limit sensor (22) is installed below the lower limit adjustment block (20). A stop block (26) is installed on the inner side of the housing of the cantilever (3). The stop block (26) can contact the upper limit sensor (21) and the lower limit sensor (22) as the cantilever (3) rotates.

6. The intelligent roof rack according to claim 5, characterized in that: A locking mechanism (5) is also installed on the cross brace (1) by a pair of clamps (12). The locking mechanism (5) has a telescopic motor (27) inside. A locking tongue (29) is movably installed on the upper surface of the locking mechanism (5) to lock the connecting rod (7). The output end of the telescopic motor (27) is connected to a connecting rod (28), and the locking tongue (29) is rotated by the connecting rod (28). A pair of position sensors (30) are also set inside the locking mechanism (5) to sense the position of the locking tongue (29).

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