Fixing structure of automobile luggage rack

Abstract

The utility model relates to the technical field of automobile luggage rack fixing, in particular to an automobile luggage rack fixing structure which comprises a rod piece, a supporting block and a connecting piece. The rod piece is provided with an assembling end face, the assembling end face is provided with a first limiting groove in the length direction of the rod piece, the groove bottom width of the first limiting groove is larger than the groove opening width of the first limiting groove, the supporting block abuts against the assembling end face, and a clamping head matched with the first limiting groove is arranged on the supporting block; the connecting piece is sequentially connected with the supporting block and the rod piece. According to the luggage rack assembly, the fixing mode is simplified, and the assembling reliability of the luggage rack assembly on a vehicle body can be enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing an automobile roof rack, in particular to a fixing structure of an automobile roof rack. Background Art

[0002] An automobile roof rack is a component that expands the external space of an automobile and improves the loading and transportation capacity of the automobile. At present, the fixing structure of an automobile roof rack is relatively complex. It is necessary to preset rivet nuts on the aluminum profile rod, and then sequentially thread-connect a support block and a rivet nut through a stud, assemble the aluminum profile rod, the support block and the stud into a whole, and finally thread-connect the stud with the automobile body. However, such a fixing structure not only requires drilling holes and assembling rivet nuts on the aluminum profile rod, making the manufacturing process of the aluminum profile rod more cumbersome, but also during the process of thread-connecting the stud and the rivet nut, the rotation of the stud will drive the support block to rotate, causing the support block to shift, resulting in interference when the roof rack assembly is installed on the vehicle body and unable to be assembled. At the same time, during use, due to the airflow generated by the running of the automobile, an upward force will be generated on the roof rack assembly, and the upward force changes with the vehicle speed, so that the force on the stud used to connect the vehicle body and the roof rack assembly also changes accordingly. Over time, this will cause the stud and the rivet nut to become loose or even fatigue and break, posing a safety hazard. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a fixing structure of an automobile roof rack, which not only simplifies the fixing method, but also can enhance the assembly reliability of the roof rack assembly on the vehicle body.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a fixing structure of an automobile roof rack, including a rod, a support block and a connecting piece; the rod has an assembly end face, a first limiting groove is arranged along the length direction of the rod on the assembly end face, the width of the bottom of the first limiting groove is greater than the width of the opening of the first limiting groove, the support block abuts against the assembly end face, and a clamping joint adapted to the first limiting groove is arranged on the support block;

[0005] The connecting piece sequentially connects the support block and the rod.

[0006] Further, the included angle formed between the bottom of the first limiting groove and the side wall of the first limiting groove is 30° to 89°.

[0007] Further, the rod is a hollow part, the rod has an abutting part abutting against the support block, and a locking part and a connecting part forming the first limiting groove. The connecting piece is connected with the locking part, the thickness of the locking part is greater than the thickness of the connecting part, and the thickness of the locking part is greater than the thickness of the abutting part.

[0008] Furthermore, a second limiting groove is provided at the bottom of the first limiting groove, and a sub-joint adapted to the second limiting groove is provided on the clamping joint head.

[0009] Furthermore, the thickness ratio of the connecting portion to the locking portion is 0.14 to 0.5, and the thickness ratio of the abutting portion to the locking portion is 0.14 to 0.5.

[0010] Furthermore, the connecting member is sequentially provided with a self-tapping thread section and a common thread section along its own length direction, and the self-tapping thread section is sequentially threadedly connected to the support block and the rod member.

[0011] Furthermore, a guiding through hole is provided on the support block, and the axis of the guiding through hole is perpendicular to the bottom of the first limiting groove.

[0012] Furthermore, a countersunk hole coaxial with the guiding through hole is provided on the support block, and a limiting arm adapted to the countersunk hole is provided on the connecting member.

[0013] Furthermore, the above-mentioned fixing structure of an automobile roof rack further includes a foam, and the foam is arranged at one end of the support block away from the first limiting groove.

[0014] Furthermore, a covering baffle is provided on the side wall in the width direction of the rod member, and a covering space is formed by enclosing the covering baffle and the assembly end face, and the support block is located in the covering space.

[0015] The beneficial effects of the present utility model are as follows: Different from the prior art, a first limiting groove with a bottom width larger than the notch width is provided on the assembly end face where the rod member is assembled with the vehicle body, and a clamping joint head adapted to the first limiting groove is additionally provided on the support block, so that the support block can be initially installed on the rod member in a mortise and tenon connection manner. Then, the connecting member sequentially connects the support block and the rod member, so that the rod member, the support block and the connecting member can be assembled into a whole. Moreover, during the process that the connecting member passes through the support block and is connected to the rod member, since the support block is restricted by the first limiting groove and cannot rotate, the deviation of the support block is avoided, and interference occurs when the roof rack assembly is installed on the vehicle body, resulting in impossible assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of a fixing structure of an automobile roof rack proposed by the present utility model;

[0017] Figure 2 is a schematic diagram of the rod member structure of a fixing structure of an automobile roof rack proposed by the present utility model;

[0018] Figure 3 is a schematic diagram of the connecting member structure of a fixing structure of an automobile roof rack proposed by the present utility model;

[0019] Figure 4 Schematic diagram of the support block structure of a fixing structure for a car roof rack proposed by the present utility model;

[0020] Label description:

[0021] 1. Rod; 11. Abutting part; 12. Locking part; 13. Connecting part; 14. Cosmetic baffle;

[0022] 2. Support block; 21. Card joint; 211. Sub-joint; 22. Guide through hole; 23. Countersunk head hole;

[0023] 3. Connecting piece; 31. Self-tapping thread section; 32. Ordinary thread section; 33. Limiting arm;

[0024] 4. First limiting groove; 5. Second limiting groove; 6. Foam. Specific implementation mode

[0025] To describe in detail the technical content, achieved purpose and effects of the present utility model, the following is described in conjunction with the implementation mode and with reference to the accompanying drawings.

[0026] Please refer to Figure 1 and Figure 2 As shown, a fixing structure for a car roof rack includes a rod 1, a support block 2 and a connecting piece 3; the rod 1 has an assembly end face, a first limiting groove 4 is arranged on the assembly end face along the length direction of the rod 1, the width of the bottom of the first limiting groove 4 is greater than the width of the opening of the first limiting groove 4, the support block 2 abuts against the assembly end face, and a card joint 21 adapted to the first limiting groove 4 is arranged on the support block 2; the connecting piece 3 connects the support block 2 and the rod 1 in sequence.

[0027] Working principle: During the assembly process, the card joint 21 of the support block 2 is inserted into the first limiting groove 4, so that the support block 2 can abut against the assembly end face of the rod 1. Since the support block 2 is restricted by the first limiting groove 4, during the process of the connecting piece 3 passing through the support block 2 and connecting with the rod, the support block 2 cannot rotate on the assembly end face of the rod 1.

[0028] During use, since the support block 2 is inserted into the first limiting groove 4 through the card joint 21, the contact area between the assembly end face of the rod 1 and the support block 2 can be increased, which is beneficial to reducing the compressive stress on the assembly end face of the rod 1. At the same time, since the width of the bottom of the first limiting groove 4 is greater than the width of the opening of the first limiting groove 4, that is, the width of the end of the card joint 21 away from the support block 2 is greater than the width of the end of the card joint 21 close to the support block 2, the support block 2 is connected to the assembly end face of the rod 1 in a mortise and tenon connection manner, and the support block 2 can absorb the upward force generated by the car roof rack during the car driving, thereby ensuring the assembly reliability of the connecting piece 3 and the rod 1.

[0029] Please refer to Figure 1 As shown, in an alternative embodiment, the included angle A formed between the bottom of the first limiting groove 4 and the side wall of the first limiting groove 4. A can be 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, 89°, etc. Preferably, A is 45°.

[0030] Please refer to Figure 1 and Figure 2 As shown, in an embodiment, the rod member 1 is a hollow member. The rod member 1 has an abutting portion 11 that abuts against the support block 2, and a locking portion 12 and a connecting portion 13 that form the first limiting groove 4; the connecting member 3 is connected to the locking portion 12; the thickness of the locking portion 12 is greater than the thickness of the connecting portion 13, and the thickness of the locking portion 12 is greater than the thickness of the abutting portion 11. Making the rod member 1 a hollow member can reduce the production cost of the rod member 1. However, in order to ensure the assembly reliability of the connecting member 3 and the rod member 1, the thickness of the locking portion 12 is thickened to ensure sufficient contact with the connecting member 3.

[0031] Wherein, the thickness ratio of the connecting portion 13 to the locking portion 12 is 0.14 to 0.5, and the thickness ratio of the abutting portion 11 to the locking portion 12 is 0.14 to 0.5. Preferably, the thickness of the abutting portion 11 is 2.5 mm, the thickness of the locking portion 12 is 7.5 mm, and the thickness of the connecting portion 13 is 2.5 mm

[0032] Please refer to Figure 1 and Figure 2 As shown, in an embodiment, a second limiting groove 5 is provided at the bottom of the first limiting groove 4, and a sub-joint 211 adapted to the second limiting groove 5 is provided on the clamping joint 21. The connection between the sub-joint 211 and the second limiting groove 5 can further increase the contact area between the assembly end face of the rod member 1 and the support block 2, which is beneficial to further reduce the compressive stress on the assembly end face of the rod member 1.

[0033] Wherein, preferably, the depth direction of the second limiting groove 5 is parallel to the side wall of the first limiting groove 4. With this setting method, the constraint ability between the assembly end face of the rod member 1 and the support block 2 in the vertical direction can be further enhanced, thereby ensuring the assembly reliability of the connecting member 3 and the rod member 1.

[0034] Please refer to Figures 1 to 3As shown, in one embodiment, the connecting member 3 is successively provided with a self-tapping thread section 31 and a normal thread section 32 along its own length direction. The self-tapping thread section 31 is threadedly connected to the support block 2 and the rod member 1 in sequence. By using the self-tapping thread section 31, it is possible to save the pre-setting of connection holes on the rod member 1, thus eliminating the positioning between the pre-set connection holes on the support block 2 and the rod member 1. This not only facilitates the production of the rod member 1, but also reduces the assembly difficulty among the rod member 1, the support block 2 and the connecting member 3.

[0035] Please refer to Figure 4 As shown, in one embodiment, the support block 2 is provided with a guiding through hole 22, and the axis of the guiding through hole 22 is perpendicular to the bottom of the first limiting groove 4. By using the guiding through hole 22, it is possible to ensure the perpendicularity when the connecting member 3 passes through the support block 2 and is connected to the rod member 1.

[0036] It should be noted that when the connecting member 3 uses the self-tapping thread section 31 to connect the support block 2 and the rod member 1 in sequence, the connecting member 3 will damage the wall of the guiding through hole 22 through the self-tapping thread section 31 to achieve the threaded connection with the support block 2.

[0037] Please refer to Figure 4 As shown, in one embodiment, the support block 2 is provided with a countersunk hole 23 coaxial with the guiding through hole 22, and the connecting member 3 is provided with a limiting arm 33 adapted to the countersunk hole 23. When the connecting member 3 connects the support block 2 and the rod member 1 in sequence, by using the cooperation between the limiting arm 33 and the countersunk hole 23, it is possible to prevent the connecting member 3 from passing through the support block 2 excessively and causing the connecting member 3 to penetrate through the rod member 1.

[0038] Please refer to Figure 1 As shown, in one embodiment, a fixing structure of an automobile roof rack further includes a foam 6, and the foam 6 is arranged at one end of the support block 2 away from the first limiting groove 4. By using the foam 6 to pad under the support block 2, the foam 6 absorbs the pressure of the support block 2 on the automobile body.

[0039] Please refer to Figure 1 and Figure 2 As shown, in one embodiment, a covering baffle 14 is arranged on the side wall in the width direction of the rod member 1, and the covering baffle 14 and the assembly end face enclose a covering space, and the support block 2 is located in the covering space. By using the covering baffle 14 to block the support block 2, the assembly appearance of the automobile roof rack on the automobile body is ensured.

[0040] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. A fixing structure of a car luggage rack, characterized in that: It comprises a rod, a support block and a connecting piece; the rod has an assembly end face, the assembly end face is provided with a first limiting groove along the length direction of the rod, the groove bottom width of the first limiting groove is greater than the groove width of the first limiting groove, the support block abuts against the assembly end face, and the support block is provided with a clamping joint adapted to the first limiting groove; The connecting member sequentially connects the supporting block and the rod member.

2. The fixing structure of the automobile luggage rack according to claim 1, characterized in that: The included angle between the groove bottom of the first limiting groove and the side wall of the first limiting groove is 30° to 89°.

3. The fixing structure of the automobile luggage rack according to claim 1 is characterized in that: The rod is a hollow member, and has a supporting portion that abuts against the support block, and a locking portion and a connecting portion that constitute the first limiting groove; The connecting piece is connected to the locking part; The thickness of the locking portion is greater than the thickness of the connecting portion, and the thickness of the locking portion is greater than the thickness of the abutting portion.

4. The fixing structure of the automobile luggage rack according to claim 1 or 3, characterized in that: A second limiting groove is arranged at the bottom of the first limiting groove, and a sub-joint adapted to the second limiting groove is arranged on the clamping joint.

5. The fixing structure of the automobile luggage rack according to claim 3 is characterized in that: The thickness ratio of the connecting portion to the locking portion is 0.14 to 0.5, and the thickness ratio of the abutting portion to the locking portion is 0.14 to 0.

5.

6. The fixing structure of the automobile luggage rack according to claim 1, characterized in that: The connecting piece is provided with self-tapping thread segments and common thread segments in sequence along its length direction, and the self-tapping thread segments are threadedly connected with the supporting block and the rod in sequence.

7. The fixing structure of the automobile luggage rack according to claim 1 or 6, characterized in that: The support block is provided with a guide through hole, and the axis of the guide through hole is perpendicular to the bottom of the first limiting groove.

8. The fixing structure of the automobile luggage rack according to claim 7, characterized in that: The support block is provided with a countersunk hole coaxial with the guide through hole, and the connecting piece is provided with a limiting arm adapted to the countersunk hole.

9. The fixing structure of the automobile luggage rack according to claim 1, characterized in that: It also includes foam, which is arranged at one end of the support block away from the first limiting groove.

10. The fixing structure of the automobile luggage rack according to claim 1, characterized in that: The side wall of the rod in the width direction is provided with an ugliness-hiding baffle, and the ugliness-hiding baffle and the assembly end face are combined to form an ugliness-hiding space, and the support block is located in the ugliness-hiding space.

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