An automobile rear bumper and an automobile

Abstract

The present invention relates to the technical field of automobiles, and discloses an automobile rear bumper for an automobile. The automobile rear bumper includes a bumper main body installed at the rear of the automobile, a spare tire carrier, a bushing, and a frustum-shaped rotating shaft. The rotating shaft is swingably disposed at one end of the bumper main body. One end of the bushing is fixed to the spare tire carrier and is rotatably sleeved on the rotating shaft. The other end of the spare tire carrier is detachably connected to the bumper main body. By providing a frustum-shaped rotating shaft and swingably disposing the rotating shaft at one end of the bumper main body, and at the same time providing a bushing at one end of the spare tire carrier and sleeving the bushing on the rotating shaft, the lower end of the bushing can swing left and right around its upper end when the other end of the spare tire carrier rises or falls. This not only realizes the free adjustment of the angle of the spare tire carrier, but also avoids damage to the bushing due to force during adjustment, ensuring the reliability of the structure. There is no requirement for vertical accuracy, reducing the production requirements and making it easy to promote and use.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, and particularly to an automobile rear bumper and an automobile. Background Art

[0002] At present, some vehicle models are equipped with a spare tire on their body due to requirements. There are various installation methods for the spare tire. Among them, for some vehicle models, a cylindrical rotating shaft 200 is directly welded on the rear bumper 100 (i.e., the bumper) at the rear of the vehicle. One end of the spare tire rack 2 is welded with a sleeve 300, and then the sleeve 300 is sleeved on the cylindrical rotating shaft 200 to realize the rotation of the spare tire rack 2 (such as Figure 6 ). This method has extremely high requirements for the perpendicularity between the rotating shaft and the bumper. It is difficult to guarantee the accuracy during production and processing. Often, a large amount of manual correction and mutual matching inspection are required, which not only causes waste of resources, but also may ultimately lead to the inability to install the product or difficult installation, resulting in product scrapping. On the other hand, although the sleeve can achieve a certain angle adjustment to realize the height adjustment of the spare tire rack, since the rotating shaft is cylindrical, the sleeve is damaged by the force during adjustment, resulting in structural failure. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides an automobile rear bumper and an automobile, which reduce production requirements, realize free adjustment of the angle of the spare tire rack, and ensure the reliability of the structure.

[0004] The technical solution adopted by the present invention to solve its technical problems is:

[0005] An automobile rear bumper includes a bumper main body installed at the rear of the automobile, a spare tire rack, a bushing, and a frustum-shaped rotating shaft. The rotating shaft is swingably disposed at one end of the bumper main body. The bushing is fixed at one end of the spare tire rack and is rotatably sleeved on the rotating shaft. The other end of the spare tire rack is detachably connected to the bumper main body.

[0006] Preferably, a fixing plate is provided on the bumper main body corresponding to the bushing. A cam plate is rotatably connected to the fixing plate. A protrusion is provided on a surface of the cam plate close to the fixing plate. The upper end of the rotating shaft passes through the fixing plate to connect the cam plate.

[0007] Preferably, a plurality of receiving holes are uniformly distributed in a ring on the fixing plate. The protrusion is received in one of the receiving holes or located in an area between any two of the receiving holes.

[0008] Preferably, a shoulder is provided at the upper end of the rotating shaft. A mounting hole is provided at the center of the cam plate. The shoulder is inserted into the mounting hole.

[0009] Preferably, it includes a bolt. The screw rod of the bolt sequentially passes through the cam plate, the fixing plate, and the rotating shaft connecting nut, and a washer is provided between the bolt head of the bolt and the cam plate.

[0010] Preferably, the included angle a between the generatrix and the axis of the rotating shaft is 2 - 3 degrees.

[0011] Preferably, a wear-resistant sleeve is provided between the rotating shaft and the shaft sleeve, and the wear-resistant sleeve is formed by splicing two half sleeves.

[0012] Preferably, the spare tire carrier includes a spare tire carrier main body and a mounting bracket provided on the spare tire carrier main body, and the shaft sleeve is provided at one end of the spare tire carrier main body.

[0013] Preferably, the protective bar main body includes a connecting bar. Side bars are respectively connected to both ends of the connecting bar. An installation groove is provided on the connecting bar, and the spare tire carrier is arranged in the installation groove.

[0014] An automobile includes a rear protective bar of the automobile.

[0015] Compared with the prior art, the beneficial effects of the rear protective bar of the automobile and the automobile in the embodiment of the present invention are as follows: By providing a frustum-shaped rotating shaft and swingably arranging the rotating shaft at one end of the protective bar main body, and at the same time arranging a shaft sleeve at one end of the spare tire carrier and sleeving the shaft sleeve on the rotating shaft, the lower end of the shaft sleeve can swing left and right around its upper end when the other end of the spare tire carrier rises or falls. Also, since the rotating shaft is frustum-shaped and its lower end is the small-diameter end, no acting force will be generated between the shaft sleeve and the rotating shaft. This not only realizes the free adjustment of the angle of the spare tire carrier but also avoids the damage of the shaft sleeve due to force during adjustment, ensuring the reliability of the structure. At the same time, since the rotating shaft is swingably arranged and not directly fixed on the protective bar main body, there is no requirement for vertical precision, reducing the production requirements. The structure of the present invention is simple, has good use effects, and is easy to promote and apply. Description of the Drawings

[0016] Figure 1 is an exploded view of the rear protective bar of the automobile of the present invention.

[0017] Figure 2 is Figure 1 the enlarged structure view of A in

[0018] Figure 3 is the raised state view of the spare tire carrier of the present invention.

[0019] Figure 4 is the lowered state view of the spare tire carrier of the present invention.

[0020] Figure 5 is the structural schematic diagram of the rotating shaft of the rear protective bar of the automobile of the present invention.

[0021] Figure 6 It is a schematic structural diagram of a rear bumper of the prior art.

[0022] Wherein: 1 - bumper main body, 11 - connecting bar, 12 - side bar, 13 - mounting groove, 2 - spare tire carrier, 3 - bushing, 4 - rotating shaft, 5 - fixing plate, 51 - receiving hole, 6 - cam plate, 61 - protrusion, 7 - bolt, 8 - wear-resistant sleeve, 81 - half sleeve, 9 - nut, 100 - rear pump handle, 200 - cylindrical rotating shaft, 300 - sleeve. Specific embodiments

[0023] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0024] As Figure 1-2 shown, a rear bumper of a preferred embodiment of the present invention includes a bumper main body 1, a spare tire carrier 2, a bushing 3 and a frustum-shaped rotating shaft 4 installed at the rear of the vehicle. The rotating shaft 4 is swingably arranged at one end of the bumper main body 1. The bushing 3 is fixed at one end of the spare tire carrier 2 and is rotatably sleeved on the rotating shaft 4. The other end of the spare tire carrier 2 is detachably connected to the bumper main body 1, and a locking mechanism is used for connection when connecting. This is the prior art and will not be elaborated here.

[0025] Based on the above technical features, for the rear bumper of the vehicle, by setting the frustum-shaped rotating shaft 4 and swingably arranging the rotating shaft 4 at one end of the bumper main body 1, and at the same time arranging a bushing 3 at one end of the spare tire carrier 2 and sleeving the bushing 3 on the rotating shaft 4, the lower end of the bushing 3 can swing left and right around its upper end when the other end of the spare tire carrier 2 rises or falls. Also, since the rotating shaft 4 is frustum-shaped and its lower end is the small-diameter end, the bushing 3 will not generate a force with the rotating shaft 4. This not only realizes the free adjustment of the angle of the spare tire carrier 2, but also avoids the damage of the bushing 3 due to force during adjustment, ensuring the reliability of the structure. At the same time, since the rotating shaft 4 is swingably arranged and not directly fixed on the bumper main body 1, there is no requirement for vertical accuracy, reducing the production requirements. The structure of the present invention is simple, has good use effects, and is easy to promote and apply.

[0026] In this embodiment, a fixing plate 5 is provided on the bumper main body 1 corresponding to the bushing 3. A cam plate 6 is rotatably connected to the fixing plate 5. A protrusion 61 is provided on one side of the cam plate 6 close to the fixing plate 5. The upper end of the rotating shaft 4 passes through the fixing plate 5 and is connected to the cam plate 6. A plurality of receiving holes 51 are evenly distributed in a ring on the fixing plate 5. The protrusion 61 is received in one of the receiving holes 51 or in the area between any two of the receiving holes 51. When adjusting the height of one end of the spare tire rack 2 away from the rotating shaft 4, rotate the cam plate 6 so that the protrusion 61 abuts against the area between two adjacent receiving holes 51 on the fixing plate 5. When the protrusion 51 is located at one end close to the height adjustment of the spare tire rack 2, the spare tire rack 2 rises (such as Figure 3 ), and when it is located at one end away from the height adjustment of the spare tire rack 2, the spare tire rack 2 descends (such as Figure 4 ), and the adjustment range is different when the protrusion 61 is located at different positions. When the protrusion 61 is located in the receiving hole 51, the height of the spare tire rack 2 is not adjusted.

[0027] Please refer to the attached Figure 5 , in this embodiment, a shoulder is provided at the upper end of the rotating shaft 4, and a mounting hole is provided in the center of the cam plate 6. The shoulder is inserted into the mounting hole. The included angle a between the generatrix and the axis of the rotating shaft 4 is 2-3 degrees, preferably 2.5 degrees. At the same time, a bolt 7 is also provided. The bolt 7 is made of 45# steel and has a strength grade of 10.9 or above. The screw of the bolt 7 passes through the cam plate 6, the fixing plate 5, and the rotating shaft 4 in sequence and is connected to a nut 9. When the position of the spare tire rack 2 is adjusted, tightening the nut 9 can fix all components. At the same time, a washer is provided between the bolt head of the bolt 7 and the cam plate 6. The washer is made of Q235A material and functions to protect the surface of the product from damage when the bolt 7 is tightened.

[0028] In this embodiment, a wear-resistant sleeve 8 is provided between the rotating shaft 4 and the bushing 3. The wear-resistant sleeve 8 is made of tin bronze and has good impact resistance and wear resistance. At the same time, for the convenience of installing the wear-resistant sleeve 8, the wear-resistant sleeve 8 is composed of two half sleeves 81 spliced together.

[0029] In this embodiment, the spare tire rack 2 includes a spare tire rack main body and a mounting rack provided on the spare tire rack main body. The bushing 3 is provided at one end of the spare tire rack main body. The bumper main body 1 includes a connecting bar 11. Both ends of the connecting bar 11 are respectively connected to side bars 12. The side bars 12 are connected to the vehicle body. An installation groove 13 is provided on the connecting bar 11. The spare tire rack 2 is arranged in the installation groove 13.

[0030] To solve the above technical problems, the present invention further provides an automobile, which includes the automobile rear bumper provided in this embodiment.

[0031] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An automobile rear bumper, characterized in that: It includes a bumper main body, a spare tire carrier, a bushing and a frustum-shaped rotating shaft installed at the rear of the vehicle. The rotating shaft is swingably arranged at one end of the bumper main body. The bushing is fixed at one end of the spare tire carrier and rotatably sleeved on the rotating shaft. The other end of the spare tire carrier is detachably connected to the bumper main body; A fixing plate is provided on the bumper main body corresponding to the bushing. A cam plate is rotatably connected to the fixing plate. A protrusion is provided on one side of the cam plate close to the fixing plate. The upper end of the rotating shaft passes through the fixing plate to connect the cam plate; An axial shoulder is provided at the upper end of the rotating shaft. An installation hole is provided at the center of the cam plate. The axial shoulder is inserted into the installation hole; It includes a bolt. The screw of the bolt sequentially passes through the cam plate, the fixing plate, the rotating shaft, and is connected with a nut. And a washer is provided between the bolt head of the bolt and the cam plate.

2. The rear bumper of an automobile according to claim 1, wherein: A plurality of receiving holes are evenly distributed in a ring shape on the fixing plate. The protrusion is received in one of the receiving holes or located in the area between any two of the receiving holes.

3. The rear bumper of an automobile according to claim 1, wherein: The included angle a between the generatrix and the axis of the rotating shaft is 2-3 degrees.

4. The rear bumper of an automobile according to claim 1, characterized in that: A wear-resistant sleeve is provided between the rotating shaft and the bushing, and the wear-resistant sleeve is formed by splicing two half sleeves.

5. The rear bumper of an automobile according to claim 1, wherein: The spare tire carrier includes a spare tire carrier main body and a mounting bracket provided on the spare tire carrier main body. The bushing is arranged at one end of the spare tire carrier main body.

6. The rear bumper for an automobile according to any one of claims 1-5, characterized in that: The bumper main body includes a connecting bar. Side bars are respectively connected to both ends of the connecting bar. An installation groove is provided on the connecting bar. The spare tire carrier is arranged in the installation groove.

7. A vehicle, characterized in that: It includes the vehicle rear bumper according to any one of claims 1-6.

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