Low-wind-resistance and low-wind-noise integrated luggage rack

Abstract

The utility model discloses an integrated luggage rack with low wind resistance and wind noise, which comprises a longitudinal beam, the longitudinal beam is a metal integral piece formed by aluminum alloy sections by adopting an integrated servo stretch bending process, and a gasket with the total length slightly larger than the length of the longitudinal beam is arranged on the bottom surface of the longitudinal beam in a cushioned mode. Fitting bodies capable of being clamped into the cavity bottoms of the corresponding ends of the longitudinal beams are formed on the top surfaces, close to the two ends of the liner, of the liner; the longitudinal beam is provided with four supporting bodies used for being fixedly installed on the roof face, and the four supporting bodies sequentially comprise the front supporting body, the first middle supporting body, the second middle supporting body and the rear supporting body from front to back. A double-end bolt used for being connected with the roof face is arranged in each supporting body in a penetrating mode, and straight-line rivet nuts fixedly connected with the upper ends of the double-end bolts are arranged in the longitudinal beams. The utility model has the advantages of light weight, high strength and stable structure, and can effectively reduce wind resistance and wind noise during driving.

Description

Technical Field

[0001] The utility model relates to the design and manufacturing technology of automobile parts, in particular to a luggage rack installed on the top of the automobile, specifically a low wind resistance and wind noise integrated luggage rack. Background Art

[0002] A roof rack is a special device installed on the top of a vehicle for placing items. When people travel, they can carry a large number of necessary items through the roof rack without taking up space in the car. Traditional roof racks have complex molding processes and many parts. In particular, the longitudinal beams are easy to rebound after bending, and the structure shape is unstable. In addition, if the rack does not match the roof surface well, it will also increase the wind resistance during driving. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a low wind resistance and wind noise integrated luggage rack with light weight, high strength, stable structure and easy installation in view of the current status of the above-mentioned prior art.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] A low wind resistance and wind noise integrated luggage rack includes a longitudinal beam, which is a metal integral part formed by an aluminum alloy profile using an integrated servo stretch-bending process. The bottom pad of the longitudinal beam is equipped with a liner with a total length slightly longer than the length of the longitudinal beam, and the liner is formed with a fitting body on the top surface near both ends of the liner that can be inserted into the bottom of the corresponding end cavity of the longitudinal beam; the longitudinal beam is equipped with four support bodies for fixed installation on the roof surface of the vehicle, and the four support bodies include a front support body, a first middle support body, a second middle support body and a rear support body from front to back; each support body is penetrated by a stud bolt for connecting to the roof surface of the vehicle, and a straight-grained rivet nut fixedly connected to the upper end of the stud bolt is provided in the longitudinal beam.

[0006] To optimize the above technical solutions, the specific measures taken also include:

[0007] The rear support body is integrally formed with a decorative strip extending backwards from the rear end of the longitudinal beam, and the bottom surface of the decorative strip is padded with two foam pads.

[0008] The rear support body is fixedly connected to the longitudinal beam via two screws.

[0009] The stud bolt is sleeved with a first waterproof foam gasket.

[0010] Pre-positioning buckles for engaging with positioning holes on the roof surface are installed on the first middle supporting body and the rear supporting body.

[0011] The above-mentioned pre-positioning buckle upper sleeve is equipped with a second waterproof foam gasket.

[0012] The top surface of the above-mentioned bonding body is pasted with a double-sided tape for enhancing the bonding strength between the longitudinal beam and the bonding body.

[0013] Reflective strips are pasted at intervals on the outer side surfaces of the longitudinal beams.

[0014] The outer surface of the longitudinal beam has a protective layer formed by spraying, and the thickness of the protective layer is 150um

[0015] Compared with the prior art, the longitudinal beam of the utility model is formed by an integrated servo bending process using an aluminum alloy profile. The aluminum alloy profile is light in weight, high in strength, and has a long service life. The longitudinal beam formed by the integrated servo bending process has a stable structure, which solves the problem of unstable springback deformation in the traditional bending process. The integrated longitudinal beam has a curvature that matches the roof surface, so it can fit tightly with the vehicle body, thereby effectively reducing wind resistance and wind noise while ensuring beauty. The pad is an integral part formed by plastic injection molding, which reduces the problem of complex traditional multi-component assembly processes and reduces the difficulty of product assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an exploded view of the utility model. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] The accompanying drawings are marked as follows: foam pad D1, first waterproof foam gasket F1, second waterproof foam gasket F2, screw L, longitudinal beam 1, pad 2, fitting body 21, support body 3, front support body 31, first middle support body 32, second middle support body 33, rear support body 34, decorative strip 341, stud bolt 4, straight rivet nut 5, pre-positioning buckle 6, double-sided tape 7, and reflective strip 8.

[0020] like Figure 1As shown, the utility model discloses a low wind resistance and wind noise integrated luggage rack, which includes a longitudinal beam 1. The longitudinal beam 1 of the utility model is a metal integral part formed by bending an aluminum alloy profile using an integrated servo bending process. The longitudinal beam 1 made of aluminum alloy profile is light in weight, high in strength, good in impact and vibration resistance, and has improved overall performance. The longitudinal beam 1 is formed by an integrated servo bending process to solve the problem of unstable bending rebound deformation in traditional processes. The bottom pad of the longitudinal beam 1 is equipped with a liner 2 whose total length is slightly greater than the length of the longitudinal beam 1. The liner 2 is an integral part formed by plastic injection molding. The liner 2 and the longitudinal beam 1 both have a curvature that matches the roof surface of the vehicle, so that the luggage rack can fit closely with the roof surface after installation, ensuring beauty while effectively reducing wind resistance and wind noise. The liner 2 is formed with a fitting body 21 on the top surface near both ends of the liner that can be inserted into the bottom of the corresponding end cavity of the longitudinal beam 1. The fitting body 21 is similar to a triangle, and the curvature of its top surface is adapted to the curvature of the top wall of the inner cavity of the longitudinal beam 1, so that the top surface of the fitting body 21 can fit tightly with the top wall of the inner cavity of the longitudinal beam 1. In order to facilitate the installation of the luggage rack and the vehicle, four support bodies 3 are provided at the bottom of the longitudinal beam 1, and the four support bodies include a front support body 31, a first middle support body 32, a second middle support body 33 and a rear support body 34 from front to back. Although the structures of the four support bodies are slightly different, their main supporting functions are the same. A stud bolt 4 is penetrated through each support body 3, and a straight-grained rivet nut 5 is provided in the inner cavity of the longitudinal beam 1 to prevent it from being pulled off. The upper end of the stud bolt 4 is fixedly connected to the longitudinal beam 1 through the straight-grained rivet nut 5. The lower end of the stud bolt 4 can pass through the mounting hole formed on the roof surface of the vehicle and cooperate with the nut spiral in the vehicle, thereby fixing the longitudinal beam 1 on the roof surface.

[0021] In the embodiment, the rear support body 34 of the utility model is integrally formed with a decorative strip 341 extending backward from the rear end of the longitudinal beam 1 , and the bottom surface of the decorative strip 341 is padded with two foam pads D1 .

[0022] In the embodiment, since the rear support body 34 of the present invention has a special structure and a relatively large length, the rear support body 34 is fixed to the longitudinal beam 1 via two screws L.

[0023] In the embodiment, in order to prevent rainwater from flowing into the vehicle body through the mounting hole on the roof surface, a first waterproof foam gasket F1 is mounted on the stud bolt 4 of the utility model.

[0024] In order to ensure the stability of the luggage rack installation position, the roof surface is usually processed with positioning holes. Accordingly, the first middle support body 32 and the rear support body 1 of the utility model are both equipped with pre-positioning buckles 6 for engaging with the positioning holes on the roof surface.

[0025] Similarly, in order to prevent rainwater from pouring into the vehicle body through the positioning holes on the roof surface, the pre-positioning buckle 6 is provided with a second waterproof foam gasket F2.

[0026] In the embodiment, the top surface of the bonding body 21 of the utility model is pasted with a double-sided adhesive tape 7 for enhancing the bonding strength between the longitudinal beam 1 and the bonding body 21. The double-sided adhesive tape 7 can effectively prevent the longitudinal beam 1 from warping at both ends.

[0027] In the embodiment, reflective strips 8 are pasted at intervals on the outer side surface of the longitudinal beam 1 of the utility model.

[0028] In the embodiment, the outer surface of the longitudinal beam 1 of the utility model has a protective layer formed by spraying, and the thickness of the protective layer is 150 um.

[0029] The longitudinal beam 1 of the utility model is formed by an integrated servo stretch-bending process, which can effectively solve the problem of unstable springback deformation during stretch-bending. In addition, the integrated servo stretch-bending process saves about 85% of energy consumption compared to the traditional process, and the efficiency can be increased by 30% (the traditional process for stretch-bending consumes 45 kilowatts of energy, while the integrated servo stretch-bending process consumes only 6 kilowatts of energy).

[0030] The best embodiment of the present invention has been explained, and various changes or modifications made by ordinary technicians in this field will not depart from the scope of the present invention.

Claims

1. A low wind resistance and low wind noise integrated luggage rack, comprising a longitudinal beam (1), characterized in that: The longitudinal beam (1) is a metal integral part formed by an aluminum alloy profile using an integrated servo stretch-bending process. The bottom pad of the longitudinal beam (1) is provided with a liner (2) whose total length is slightly greater than the length of the longitudinal beam (1). The liner (2) is formed with a fitting body (21) on the top surface near both ends of the liner that can be inserted into the bottom of the corresponding end cavity of the longitudinal beam (1); the longitudinal beam (1) is provided with four support bodies (3) for fixed installation on the roof surface of the vehicle. The four support bodies include a front support body (31), a first middle support body (32), a second middle support body (33) and a rear support body (34) from front to back; each of the support bodies (3) is penetrated by a stud bolt (4) for connecting to the roof surface of the vehicle, and the longitudinal beam (1) is provided with a straight-grained rivet nut (5) fixedly connected to the upper end of the stud bolt (4); The rear support body (34) is integrally formed with a decorative strip (341) extending backward from the rear end of the longitudinal beam (1), and the bottom surface of the decorative strip (341) is provided with two foam pads (D1); The first middle support body (32) and the rear support body (34) are both provided with pre-positioning buckles (6) for engaging with positioning holes on the roof surface; The upper sleeve of the pre-positioning buckle (6) is provided with a second waterproof foam gasket (F2); Reflective strips (8) are pasted at intervals on the outer side surface of the longitudinal beam (1); the outer surface of the longitudinal beam (1) has a protective layer formed by spraying, and the thickness of the protective layer is 150 um.

2. The low wind resistance and wind noise integrated luggage rack according to claim 1 is characterized by: The rear support body (34) is fixedly connected to the longitudinal beam (1) via two screws (L).

3. The low wind resistance and wind noise integrated luggage rack according to claim 2 is characterized by: The stud bolt (4) is sleeved with a first waterproof foam gasket (F1).

4. The low wind resistance and wind noise integrated luggage rack according to claim 3 is characterized by: The top surface of the bonding body (21) is adhered with a double-sided adhesive tape (7) for enhancing the bonding strength between the longitudinal beam (1) and the bonding body (21).

Images