阅读说明：本技术 一种汽车可变截面行李架结构 (Automobile variable cross-section luggage rack structure ) 是由 龙凯 吉亮 谷春璐 李玉华 丁文杰 于 2019-01-15 设计创作，主要内容包括：本发明提供一种汽车可变截面行李架结构,包括汽车行李架、行李架安装支架,其中,所述汽车行李架包括汽车行李架框架、汽车行李架置物梁,所述汽车行李架置物梁包括汽车行李架置物横梁、行李架置物纵梁。其中,汽车行李架通过汽车行李架安装支架安装在车身上。所述汽车行李架置物梁与汽车行李架框架焊接成一体,其中一部分汽车行李架置物横梁为变截面横梁。上述方案中,通过实现汽车行李架变截面,使得售制造成本降低,行李架本体质量降低,同时,通过优化设计汽车行李架置物横梁与汽车行李架置物纵梁的位置,不但没有降低行李架的结构刚度,反而使行李架刚度得到了提高,避免了行李架在使用过程中发生异响和变形过大等问题的风险。(The invention provides a variable cross-section luggage rack structure of an automobile, which comprises an automobile luggage rack and a luggage rack mounting bracket, wherein the automobile luggage rack comprises an automobile luggage rack frame and an automobile luggage rack object placing beam, and the automobile luggage rack object placing beam comprises an automobile luggage rack object placing beam and a luggage rack object placing longitudinal beam. Wherein, the automobile luggage rack is arranged on the automobile body through the automobile luggage rack mounting bracket. The automobile luggage rack storage beam and the automobile luggage rack frame are welded into a whole, and one part of the automobile luggage rack storage beam is a cross-section-variable beam. In the above scheme, through realizing the automobile luggage rack variable cross section for sell manufacturing cost and reduce, luggage rack body quality reduces, simultaneously, puts the position of thing crossbeam and automobile luggage rack thing longeron through optimal design automobile luggage rack, not only does not reduce the structural rigidity of luggage rack, makes luggage rack rigidity obtain improving on the contrary, has avoided the luggage rack to take place the risk of abnormal sound and the too big scheduling problem of deformation in the use.)

1. The automobile variable cross-section luggage rack structure is characterized by comprising an automobile luggage rack and a luggage rack mounting support, wherein the automobile luggage rack comprises an automobile luggage rack frame and an automobile luggage rack object placing beam, and the automobile luggage rack object placing beam comprises an automobile luggage rack object placing beam and a luggage rack object placing longitudinal beam.

2. The automotive variable cross-section roof rack structure of claim 1, wherein the automotive roof rack storage cross beam and the automotive roof rack storage longitudinal beam are welded to the automotive roof rack frame.

3. The vehicle variable cross-section roof rack structure of claim 1, wherein the vehicle roof rack is connected to the vehicle roof by screwing the vehicle roof rack mounting bracket.

4. The baggage rack structure of claim 3, wherein the baggage rack mounting brackets are distributed on the left, right and rear sides of the baggage rack frame, wherein the number of the baggage rack mounting brackets is three on the left side, 3 on the right side and 2 on the rear side, and the number of the baggage rack mounting brackets is adjusted according to the length and width of the baggage rack, which is not limited by this specific example.

5. The automotive variable cross-section roof rack structure of claim 3, wherein the automotive roof rack storage beam comprises a first automotive roof rack storage beam, a second automotive roof rack storage beam, a third automotive roof rack storage beam, a fourth automotive roof rack storage beam, a fifth automotive roof rack storage beam, and a sixth automotive roof rack storage beam.

6. The second automobile luggage rack storage beam, the fourth automobile luggage rack storage beam and the sixth automobile luggage rack storage beam are automobile luggage rack key storage beams and are located at the automobile luggage rack mounting support, the first automobile luggage rack storage beam, the third automobile luggage rack storage beam and the fifth automobile luggage rack storage beam are automobile luggage rack non-key storage beams and are located on the rear side of each automobile key storage beam.

7. The automotive variable cross-section roof rack structure of claim 3, wherein the automotive roof rack storage rails comprise an automotive first roof rack storage rail and an automotive second roof rack storage rail, each of the first and second roof rack storage rails having one end at an automotive roof rack rear mounting bracket.

8. The automotive variable cross-section roof rack structure of claim 5, wherein the first, second, third, fourth, fifth and sixth automotive roof rack storage cross beams are perpendicularly intersected with the first and second automotive roof rack storage longitudinal beams and welded at the intersections.

9. The automotive variable cross-section roof rack structure of claim 5, wherein the automotive vehicle has a cross-section that is reduced at portions of the first, second, fifth and sixth automotive roof rack shelf cross-beams that intersect the automotive first and second roof rack shelf rails.

10. The vehicle variable cross-section roof rack structure of claim 1, wherein the cross-sectional area of the tapered portions of the first, second, fifth and sixth vehicle roof rack storage beam cross-sections is 2/3-4/5 of the constant cross-sectional area.

11. The automotive variable cross-section roof rack structure of claim 1, wherein the third automotive roof rack storage beam is less than the second automotive roof rack storage beam in distance from the other storage beams without affecting the storage of luggage.

Technical Field

The invention relates to the technical field of automobile manufacturing, in particular to an automobile variable-section luggage rack structure.

Background

The automobile luggage rack is a support frame or a part which is additionally arranged at the top of an automobile body and used for safely and conveniently fixing luggage, is generally used for models of station wagons, off-road vehicles and the like, and can be used for holding articles which cannot be placed in a luggage compartment, such as bulky luggage, bicycles, folding beds and the like. Traditional luggage rack generally is formed by simple structure's tubular beam welding, and in order to make luggage rack sound construction, the tubular beam is thicker, and thickness is great, and the cross section is great, and this makes whole luggage rack quality great, if lay more luggage, when going on uneven road, probably causes roof structure to destroy, brings the risk for vehicle safety in utilization. If the tubular beam of the automobile luggage rack adopts the variable cross section, the weight of the luggage rack body can be greatly reduced, the manufacturing cost is reduced, meanwhile, the structural rigidity of the automobile luggage rack is ensured by optimally designing the position of the tubular beam in the luggage rack, the self vibration frequency is improved, and the possibility of deformation or damage of the luggage rack is greatly reduced when the automobile luggage rack bears larger luggage or runs on a severe road surface.

The current commonly used saloon car mostly adopts the non-variable cross section of the tube beam of the luggage rack, so that the luggage rack is heavy, the structural rigidity is not high, the risk of deformation or damage of the top of the car body is high when the car bears more luggage or runs on a bumpy road surface, and a large optimized space exists in the aspect of design cost.

Disclosure of Invention

The invention aims to provide a variable cross-section luggage rack structure of an automobile, which improves the structural rigidity and the resonance frequency of the luggage rack, reduces the weight of a luggage rack body, reduces the risk of occurrence or damage of the top of an automobile body, increases the lightweight coefficient of the automobile and further reduces the design cost of the whole automobile through the variable cross-section luggage rack structure and optimized design.

In order to solve the technical problem, an embodiment of the invention provides a variable cross-section baggage rack structure of an automobile, which comprises an automobile baggage rack and a baggage rack mounting bracket, wherein the automobile baggage rack comprises an automobile baggage rack frame and an automobile baggage rack object placing beam, and the automobile baggage rack object placing beam comprises an automobile baggage rack object placing beam and a baggage rack object placing longitudinal beam.

The automobile luggage rack storage beam and the automobile luggage rack storage longitudinal beam are welded with the automobile luggage rack frame.

The automobile luggage rack is connected with the automobile top cover through the automobile luggage rack mounting support in a threaded manner.

The automobile luggage rack mounting supports are distributed on the left side, the right side and the rear side of the automobile luggage rack frame, the left side is three, the right side is 3, the rear side is 2, the specific number of the automobile luggage rack mounting supports is adjusted according to the length and the width of the luggage rack, and the special embodiment is not limited.

The automobile luggage rack storage beam comprises a first automobile luggage rack storage beam, a second automobile luggage rack storage beam, a third automobile luggage rack storage beam, a fourth automobile luggage rack storage beam, a fifth automobile luggage rack storage beam and a sixth automobile luggage rack storage beam. The second automobile luggage rack storage beam, the fourth automobile luggage rack storage beam and the sixth automobile luggage rack storage beam are automobile luggage rack key storage beams and are located at the automobile luggage rack mounting support, the first automobile luggage rack storage beam, the third automobile luggage rack storage beam and the fifth automobile luggage rack storage beam are automobile luggage rack non-key storage beams and are located on the rear side of each automobile key storage beam.

The automobile luggage rack storage longitudinal beam comprises an automobile first luggage rack storage longitudinal beam and an automobile second luggage rack storage longitudinal beam, and one ends of the first luggage rack storage longitudinal beam and the second luggage rack storage longitudinal beam are located at the rear side mounting bracket of the automobile luggage rack.

The first automobile luggage rack storage beam, the second automobile luggage rack storage beam, the third automobile luggage rack storage beam, the fourth automobile luggage rack storage beam, the fifth automobile luggage rack storage beam and the sixth automobile luggage rack storage beam are vertically intersected with the first luggage rack storage longitudinal beam and the second automobile luggage rack storage longitudinal beam and welded at the intersection.

The cross section of the automobile at the intersection of the first automobile luggage rack storage longitudinal beam and the second automobile luggage rack storage longitudinal beam of the automobile is reduced, and the automobile luggage rack storage transverse beam is connected with the automobile luggage rack storage longitudinal beam through the first automobile luggage rack storage transverse beam, the second automobile luggage rack storage transverse beam, the fifth automobile luggage rack storage transverse beam and the sixth automobile luggage rack storage transverse beam.

The cross section of the thinned part of the cross section of the first, second, fifth and sixth automobile luggage rack storage cross beams accounts for 2/3-4/5 of the constant cross section area.

The third automobile luggage rack storage beam and the second automobile luggage rack storage beam are smaller than the other storage beams on the premise that the storage of luggage is not influenced.

The technical scheme of the invention has the following beneficial effects:

in the scheme, the optimized positions of the object placing cross beams and the longitudinal beams of the automobile luggage rack are arranged, the object placing cross beams of the automobile luggage rack are designed to have variable cross sections, the mass of the body of the automobile luggage rack is reduced, the production cost is reduced, the structural rigidity and the resonance frequency of the automobile luggage rack are improved, and the risk of deformation and damage of the automobile body top cover is greatly reduced when an automobile runs on a bumpy road or bears heavy luggage.

Drawings

Fig. 1 is a schematic structural diagram 1 of a variable cross-section baggage rack according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram 2 of a variable cross-section baggage rack according to an embodiment of the present invention.

Description of the main element symbols:

1-a luggage rack with a variable cross-section luggage rack structure; 2-a luggage rack mounting bracket of a variable cross-section luggage rack structure;

11-a luggage rack frame; 12-a luggage rack storage beam; 21-a first luggage rack mounting bracket; 22-a second luggage rack mounting bracket; 23-a third rack mounting bracket; 24-a fourth luggage rack mounting bracket; 25-a fifth rack mounting bracket; 26-a sixth luggage rack mounting bracket; 27-a seventh luggage rack mounting bracket; 28-an eighth rack mounting bracket;

121-luggage rack rest bar; 122-baggage racking stringers;

1211-a first automotive luggage rack storage beam; 1212-a second automotive luggage rack storage beam; 1213-third automotive roof rack storage beam; 1214-a fourth vehicle rack storage beam; 1215-a fifth vehicle rack storage beam; 1216-a sixth auto luggage rack storage beam; 1221-a first automotive luggage rack storage stringer; 1222-second vehicle luggage rack storage longitudinal beam.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

The invention provides a variable cross-section luggage rack structure of an automobile, aiming at the problems that the conventional general luggage rack is heavy, so that the automobile luggage rack bears heavy luggage or the top of an automobile body is easy to deform or crack when the automobile runs on a bumpy road.

As shown in fig. 1, an embodiment of the present invention provides a variable cross-section roof rack structure for an automobile, including a roof rack 1 and a roof rack mounting bracket 2, where the roof rack 1 includes a frame 11 and a roof cross beam 12, the roof cross beam 12 includes a first roof cross beam 1211, a second roof cross beam 1212, a third roof cross beam 1213, a fourth roof cross beam 1214, a fifth roof cross beam 1215, a sixth roof cross beam 1216, a first roof longitudinal beam 1221 and a second roof longitudinal beam 1222, and the roof rack 2 includes a first mounting bracket 21, a second mounting bracket 22, a third mounting bracket 23, a fourth mounting bracket 24, a fifth mounting bracket 25, a sixth mounting bracket 26, a seventh mounting bracket 27 and an eighth mounting bracket 28.

Specifically, the 1 is connected with the 2 and the vehicle body through a bolt, the 11 and 12 are connected through two weldings, 21, 22 and 23 are distributed on the left side of the 11 from front to back, 24, 25 and 26 are distributed on the right side of the 11 from front to back, 27 and 28 are distributed on the rear side of the 11, the welding positions of two ends of 1212 and 11 are located at the mounting positions of 23, 26 and 11, the welding positions of two ends of 1214 and 11 are located at the mounting positions of 22, 25 and 11, the welding positions of two ends of 1216 and 11 are located at the mounting positions of 21, 24 and 11, the variable cross-section portion of 1211 is located between the welding positions of 1211 and 1221 and 1222, the variable cross-section portion of 1212 is located between the welding positions of 1212 and 1221 and 1222, the variable cross-section portion of 1215 is located between the welding positions of 1215 and 1221 and 1222, and the variable cross-section beam portion of 1216 and.

The technical scheme of the invention has the following beneficial effects:

in the scheme, the optimized positions of the object placing cross beams and the longitudinal beams of the automobile luggage rack are arranged, the object placing cross beams of the automobile luggage rack are designed to have variable cross sections, the mass of the body of the automobile luggage rack is reduced, the production cost is reduced, the structural rigidity and the resonance frequency of the automobile luggage rack are improved, and the risk of deformation and damage of the automobile body top cover is greatly reduced when an automobile runs on a bumpy road or bears heavy luggage.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.