A stepless adjusting device for roof rack

Abstract

The application relates to a stepless adjusting device for a roof luggage rack, which comprises a fixing frame installed on a roof, the fixing frame comprises a rectangular frame and mounting beams, two mounting beams are arranged on the rectangular frame and are in sliding fit with the rectangular frame, a locking assembly is arranged on the mounting beam, the locking assembly comprises a locking block, a rotating rod, a pull rod and a rotating shaft, the locking block is in sliding fit in the rectangular frame and is located below the mounting beam, the pull rod vertically penetrates through the mounting beam and is in screw fit with the locking block at the bottom, a rotating part is arranged at the top of the pull rod, the rotating shaft is installed between one end of the rotating rod and the rotating part, an eccentric part is arranged at one end of the rotating rod, the distance between the eccentric part edge and the rotating shaft is larger than the distance between the rotating rod edge and the rotating shaft, a limiting piece for limiting the rotating rod on the mounting beam is arranged at the other end of the rotating rod, when the locking is performed, the rotating rod is in a horizontal state, the eccentric part faces downward and abuts against the mounting beam, and the locking block abuts against the rectangular frame upward. The application has the effect of improving the applicability of the roof luggage rack.

Description

Technical Field

[0001] This application relates to the field of roof rack installation technology, and in particular to a stepless adjustment device for a roof rack. Background Technology

[0002] A roof box is a device installed on the roof of a car to expand storage space. It offers advantages such as increased vehicle storage space, good sealing and protection, reduced interior crowding, and improved vehicle aesthetics.

[0003] Chinese Patent No. CN222005037U discloses a roof rack mounting device, which includes a roof rack with symmetrically arranged locking seats on its front and rear sides. A space for accommodating a luggage compartment is formed between two of the locking seats. The two locking seats are located on the front and rear sides of the luggage compartment, and they form a detachable locking mechanism with handles on the front and rear sides of the luggage compartment. This invention meets the requirements for quick installation and disassembly, has a robust fixing structure, is safe and theft-proof, has an attractive appearance, and is highly practical.

[0004] Regarding the aforementioned technologies, existing roof racks are equipped with several crossbeams to accommodate luggage boxes of different sizes. However, only two crossbeams are used when installing the fixing lock, making the rest redundant. This increases the manufacturing cost of the roof rack and reduces its applicability. Summary of the Invention

[0005] To improve the applicability of roof racks, this application provides a stepless adjustment device for roof racks.

[0006] This application provides a stepless adjustment device for a roof rack, employing the following technical solution: A stepless adjustment device for a roof rack includes a fixed frame mounted on the roof. The fixed frame includes a rectangular frame and mounting beams. Two mounting beams are provided, both slidably fitted onto the rectangular frame. A locking assembly is provided on each mounting beam. The locking assembly includes a locking block, a rotating rod, a pull rod, and a rotating shaft. The locking block is slidably fitted within the rectangular frame and located below the mounting beams. The pull rod passes vertically through the mounting beams and its bottom is threaded into the locking block. A rotating part is provided at the top of the pull rod. The rotating shaft is installed between one end of the rotating rod and the rotating part. One end of the rotating rod has an eccentric part, the distance between the edge of the eccentric part and the rotating shaft is greater than the distance between the edge of the rotating rod and the rotating shaft. The other end of the rotating rod has a limiting member that restricts the rotating rod onto the mounting beams. When locked, the rotating rod is horizontal, the eccentric part faces downward and abuts against the mounting beams, and the locking block abuts upward against the rectangular frame.

[0007] By adopting the above technical solution, when the position of the mounting beam needs to be adjusted, the mounting beam is moved to the designated position. Then, the rotating rod is rotated, causing the eccentric part to rotate and rise. The rising of the pull rod causes the locking block to rise and press against the rectangular frame. Finally, the rotation of the rotating rod is restricted by the limiting component, thereby restricting the movement of the mounting beam and achieving the effect of adjusting the position of the mounting beam. By rotating the eccentric part to drive the pull rod to rise, the locking block presses against the rectangular frame. The friction between the locking block and the rectangular frame restricts the freedom of movement of the mounting beam, thus achieving the effect of adjusting the position of the mounting beam.

[0008] Optionally, the mounting beam includes a fixed beam and a sliding end block. Two sliding end blocks are provided, and each sliding end block is connected to a plug-in part. The sliding end block is plugged into the end of the fixed beam through the plug-in part, and the locking component is provided on the sliding end block.

[0009] By adopting the above technical solution, and by setting a fixed beam and a sliding end block, the installation beam can be detached and installed, which facilitates the installation of components on the installation beam.

[0010] Optionally, the sliding end block is provided with a sliding part, and the rectangular frame is provided with a first sliding groove and a second sliding groove. Both the first sliding groove and the second sliding groove are T-shaped grooves. The locking block is slidably engaged in the first sliding groove, and the sliding part is slidably engaged in the second sliding groove. The end of the first sliding groove is provided with a first inlet, and the end of the second sliding groove is provided with a second inlet.

[0011] By adopting the above technical solution, the stability of the installation beam's movement is further improved through the cooperation of the sliding part and the second sliding groove. By setting the first and second inlets, the installation beam can be removed without disassembling the rectangular frame, facilitating the maintenance of the installation beam.

[0012] Optionally, the bottom of the sliding end block is connected to an extension block, the locking block has a limiting groove, the extension block is inserted into the limiting groove, and the top of the locking block is connected to a plurality of abutting teeth, which are distributed along the sliding direction of the sliding end block.

[0013] By adopting the above technical solution, the installation angle of the locking block is limited by the cooperation of the extension block and the limiting groove, ensuring that the length direction of the clamping tooth is perpendicular to the moving direction of the sliding end block, maximizing the friction of the clamping tooth, and improving the reliability of the limiting installation beam.

[0014] Optionally, a fixed block is connected to the sliding end block, and a clamping arc groove is formed on the fixed block. The pull rod passes through the fixed block and the sliding end block, and the eccentric part fits into the clamping arc groove.

[0015] By adopting the above technical solution and setting the clamping arc groove, the friction area of ​​the eccentric part is increased, the possibility of the rotating rod rotating in the opposite direction under force is reduced, and the reliability of the limiting installation beam is further improved.

[0016] Optionally, the limiting member is a snap-fit ​​rod, which is rotatably connected to the rotating rod. The limiting member is provided with a hook portion, and the sliding end block has a groove. When locked, the hook portion hooks into the groove.

[0017] By adopting the above technical solution, when locking the rotating rod, the rotating limiting component is rotated, and the hook part enters the groove and hooks the edge of the groove, thereby restricting the rotating rod from rotating in the opposite direction and achieving the effect of restricting the rotation of the rotating rod.

[0018] Optionally, the sliding end block is provided with a mounting groove, the fixing block is disposed in the mounting groove, a limiting flange is connected to the mounting groove, and a limiting groove is provided on the rotating rod. When locked, the limiting flange is located in the limiting groove, and the surface of the rotating rod is flush with the surface of the sliding end block.

[0019] By adopting the above technical solution and setting the installation groove, it is ensured that the locking component will not protrude from the surface of the sliding end block, thus ensuring the flatness of the installation beam surface and making the installation of the suitcase more stable and convenient.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. When the position of the mounting beam needs to be adjusted, the mounting beam is moved to the designated position. Then, the rotating rod is rotated, causing the eccentric part to rotate and rise. The rising of the pull rod causes the locking block to rise and press against the rectangular frame. Finally, the limiting component restricts the rotation of the rotating rod, thereby restricting the movement of the mounting beam and achieving the effect of adjusting the position of the mounting beam. By rotating the eccentric part, the pull rod is driven to rise, causing the locking block to press against the rectangular frame. The friction between the locking block and the rectangular frame restricts the freedom of movement of the mounting beam, thus achieving the effect of adjusting the position of the mounting beam. 2. When locking the rotating rod, rotate the limiting part, the hook part abuts against the edge of the locking groove, the hook part deforms until the hook part enters the locking groove and returns to its original position, thereby limiting the reverse rotation of the rotating rod and achieving the effect of limiting the rotation of the rotating rod. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the roof rack in the embodiments of this application.

[0022] Figure 2 This is an exploded view used in the embodiments of this application to illustrate the rectangular frame and the installation beam structure.

[0023] Figure 3 This is an exploded view illustrating the structure of the locking assembly, fixing block, and limiting member in the embodiments of this application.

[0024] Figure 4 This is a cross-sectional view used in the embodiments of this application to illustrate the structure of the locking assembly, the fixing block, and the limiting member.

[0025] Explanation of reference numerals in the attached drawings: 1. Fixing frame; 11. Rectangular frame; 111. First slide groove; 1111. First inlet; 112. Second slide groove; 1121. Second inlet; 12. Mounting beam; 121. Fixing beam; 122. Sliding end block; 1221. Insertion part; 1222. Sliding part; 1223. Mounting groove; 1224. Restricting flange; 1225. Groove; 1226. Extension block; 2. Locking assembly; 21. Locking block; 211. Restricting groove; 212. Abutting tooth; 22. Rotating rod; 221. Eccentric part; 23. Pull rod; 231. Rotating part; 24. Rotating shaft; 3. Fixing block; 31. Abutting arc groove; 4. Restricting element; 41. Hook part. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0027] This application discloses a stepless adjustment device for a roof rack. (See also...) Figure 1 and Figure 2 The roof rack infinitely adjustable device includes a fixed frame 1 fixedly connected to the roof of the vehicle. The fixed frame 1 includes a rectangular frame 11 and a mounting beam 12. The rectangular frame 11 has a first groove 111 and a second groove 112 on both sides in the width direction. Both the first groove 111 and the second groove 112 are T-shaped grooves. The first groove 111 has a first inlet 1111 at its end, and the second groove 112 has a second inlet 1121 at its end.

[0028] Reference Figure 2 The mounting beam 12 includes a fixed beam 121 and sliding end blocks 122. Two sliding end blocks 122 are provided, and each is fixedly connected to a connector 1221. The sliding end blocks 122 are inserted into the ends of the fixed beam 121 via the connectors 1221. A sliding portion 1222 is fixedly connected to each sliding end block 122, and the sliding portion 1222 slides within a second groove 112. The cooperation between the sliding portion 1222 and the second groove 112 improves the movement stability of the mounting beam 12.

[0029] Reference Figure 3 and Figure 4A locking assembly 2 is provided on the sliding end block 122, which includes a locking block 21, a rotating rod 22, a pull rod 23, and a rotating shaft 24. The sliding end block 122 has a mounting groove 1223, within which a fixing block 3 is fixedly connected. The fixing block 3 has a clamping arc groove 31. The locking block 21 slides within the first sliding groove 111. Several extension blocks 1226 are fixedly connected to the sliding end block 122. In this embodiment, two extension blocks 1226 are used as an example. The locking block 21 has two limiting grooves 211, into which the extension blocks 1226 are inserted. Several clamping teeth 212 are fixedly connected to the locking block 21, distributed along the sliding direction of the sliding end block 122. The clamping teeth 212 abut against the inner top wall of the first sliding groove 111. The clamping teeth 212 increase the friction between the locking block 21 and the first sliding groove 111.

[0030] Reference Figure 3 and Figure 4 The pull rod 23 vertically passes through the fixed block 3 and the sliding end block 122, and the bottom end of the pull rod 23 passes through the locking block 21 and is threadedly engaged with the locking block 21. A rotating part 231 is fixedly connected to the top end of the pull rod 23, and a rotating shaft 24 passes through the rotating part 231 and one end of the rotating rod 22. An eccentric part 221 is fixedly connected to one end of the rotating rod 22, and the distance between the eccentric part 221 and the rotating shaft 24 is greater than the distance between the side wall of the rotating rod 22 and the rotating shaft 24. The eccentric part 221 fits tightly against the arc groove 31.

[0031] Reference Figure 3 and Figure 4 The other end of the rotating rod 22 is provided with a limiting member 4, which is a snap-fit ​​rod. The limiting member 4 is provided with a hook part 41, and the rotating rod 22 is provided with a limiting groove. The limiting member 4 is rotatably connected to the rotating rod 22. A limiting flange 1224 is fixedly connected to the mounting groove 1223. A groove 1225 is opened on one side of the limiting flange 1224. When the limiting flange 1224 enters the limiting groove, the surface of the rotating rod 22 is flush with the surface of the sliding end block 122.

[0032] The implementation principle of the stepless adjustment device for a roof rack in this application embodiment is as follows: When it is necessary to adjust the position of the mounting beam 12, the mounting beam 12 is moved to a suitable position, and the rotating rod 22 is rotated until the limiting flange 1224 enters the limiting groove. At this time, the eccentric part 221 applies pressure to the arc groove 31, causing the pull rod 23 to rise, which in turn drives the locking block 21 to rise. The clamping teeth 212 clamp the inner top wall of the first sliding groove 111. Then, the limiting member 4 is rotated so that the hook part 41 hooks the edge of the groove 1225 to limit the rotating rod 22 from rotating in the opposite direction. The friction of the clamping teeth 212 restricts the movement of the mounting beam 12, thereby achieving the effect of adjusting the position of the mounting beam 12.

[0033] By rotating the eccentric part 221, the pull rod 23 is driven to rise, so that the locking block 21 abuts against the inner top wall of the first slide groove 111. Through the friction between the locking block 21 and the rectangular frame 11, the freedom of movement of the mounting beam 12 is restricted, thereby achieving the effect of adjusting the position of the mounting beam 12.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stepless adjustment device for a roof rack, characterized in that: The system includes a mounting bracket (1) installed on the roof of the vehicle. The mounting bracket (1) includes a rectangular frame (11) and mounting beams (12). Two mounting beams (12) are provided, and both are slidably fitted on the rectangular frame (11). A locking assembly (2) is provided on the mounting beams (12). The locking assembly (2) includes a locking block (21), a rotating rod (22), a pull rod (23), and a rotating shaft (24). The locking block (21) is slidably fitted inside the rectangular frame (11) and located below the mounting beams (12). The pull rod (23) passes vertically through the mounting beams (12) and its bottom is threadedly fitted with the locking block (21). A rotating part is provided at the top of the pull rod (23). (231) The rotating shaft (24) is installed between one end of the rotating rod (22) and the rotating part (231). One end of the rotating rod (22) is provided with an eccentric part (221). The distance between the edge of the eccentric part (221) and the rotating shaft (24) is greater than the distance between the edge of the rotating rod (22) and the rotating shaft (24). The other end of the rotating rod (22) is provided with a limiting member (4) that restricts the rotating rod (22) on the mounting beam (12). When locked, the rotating rod (22) is in a horizontal state, the eccentric part (221) faces downward and abuts against the mounting beam (12), and the locking block (21) abuts against the rectangular frame (11) upward.

2. The stepless adjustment device for a roof rack according to claim 1, characterized in that: The mounting beam (12) includes a fixed beam (121) and a sliding end block (122). Two sliding end blocks (122) are provided. A plug-in part (1221) is connected to the sliding end block (122). The sliding end block (122) is plugged into the end of the fixed beam (121) through the plug-in part (1221). The locking component (2) is provided on the sliding end block (122).

3. The stepless adjustment device for a roof rack according to claim 2, characterized in that: The sliding end block (122) is provided with a sliding part (1222), and the rectangular frame (11) is provided with a first sliding groove (111) and a second sliding groove (112). The first sliding groove (111) and the second sliding groove (112) are both T-shaped grooves. The locking block (21) is slidably engaged in the first sliding groove (111), and the sliding part (1222) is slidably engaged in the second sliding groove (112). The end of the first sliding groove (111) is provided with a first inlet (1111), and the end of the second sliding groove (112) is provided with a second inlet (1121).

4. The stepless adjustment device for a roof rack according to claim 2, characterized in that: The bottom of the sliding end block (122) is connected to an extension block (1226), and the locking block (21) has a limiting groove (211). The extension block (1226) is inserted into the limiting groove (211), and the top of the locking block (21) is connected to a plurality of abutting teeth (212). The abutting teeth (212) are distributed along the sliding direction of the sliding end block (122).

5. The stepless adjustment device for a roof rack according to claim 2, characterized in that: A fixed block (3) is connected to the sliding end block (122). A clamping arc groove (31) is opened on the fixed block (3). The pull rod (23) passes through the fixed block (3) and the sliding end block (122). The eccentric part (221) fits against the clamping arc groove (31).

6. The stepless adjustment device for a roof rack according to claim 2, characterized in that: The limiting member (4) is a snap-fit ​​rod. The limiting member (4) is rotatably connected to the rotating rod (22). The limiting member (4) is provided with a hook part (41). The sliding end block (122) has a groove (1225). When locked, the hook part (41) hooks the groove (1225).

7. The stepless adjustment device for a roof rack according to claim 5, characterized in that: The sliding end block (122) is provided with an installation groove (1223), the fixing block (3) is provided in the installation groove (1223), the installation groove (1223) is connected with a limiting flange (1224), the rotating rod (22) is provided with a limiting groove. When locked, the limiting flange (1224) is located in the limiting groove, and the surface of the rotating rod (22) is flush with the surface of the sliding end block (122).

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