Spare tire mounting structure of SUV (sports utility vehicle)

Abstract

The spare tire mounting structure of the SUV vehicle type comprises a rear floor body, a spare tire mounting position is formed in a partial area of the rear floor body, a spare tire mounting support is arranged in the middle of the spare tire mounting position, and the spare tire mounting support is used for fixing the middle of a hub of a spare tire; by taking the spare tire mounting bracket as a center, supporting structures are annularly arrayed on the spare tire mounting position and are used for supporting the tire surface of the spare tire; the supporting structure at least comprises reinforcing ribs formed on the surface of the rear section of the rear floor body. The SUV type spare tire mounting structure is different from a traditional spare tire pool mounting structure, the requirements for spare tire arrangement space and structural strength are met, the universal requirement of four different configuration vehicle body rear floor assembly structures of a platform vehicle type is met, the fixed investment cost increase caused by differential development is reduced, and the SUV type spare tire mounting structure has high practicability and good application prospects.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle body structures, and in particular to a spare tire mounting structure for an SUV vehicle. Background Art

[0002] In the related technology, a rather thorny problem has been encountered regarding the layout and installation structure of the spare tire. Specifically, the current vehicle model design takes into account fuel two-wheel drive, fuel four-wheel drive, PHEV two-wheel drive, and electric four-wheel drive configurations. ① The spare tire is arranged under the rear floor assembly, interfering with the mechanical four-wheel drive rear subframe and the exhaust rear pin, and there is no space for hanging and taking. ② The spare tire is arranged on the tailgate, and the definition of the length of the entire vehicle does not meet the design requirements. ③ The spare tire is built into the rear floor body, and the rear floor spare tire pool structure meets the layout space for fuel two-wheel drive, fuel four-wheel drive, and PHEV two-wheel drive, but interferes with the electric four-wheel drive motor, and the vehicle body rear floor assembly structure cannot be universal. Therefore, there are technical problems to be solved in the platform solution. Summary of the invention

[0003] The purpose of the present invention is to provide a spare tire installation structure for an SUV vehicle to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: a spare tire installation structure for an SUV model, comprising a rear floor body, a part of the rear floor body forming a spare tire installation position, a spare tire installation bracket being arranged in the middle of the spare tire installation position, and the spare tire installation bracket being used to fix the middle of the wheel hub of the spare tire;

[0005] With the spare tire mounting bracket as the center, a supporting structure is provided in a circular array on the spare tire mounting position, and the supporting structure is used to support the tread of the spare tire;

[0006] The supporting structure at least includes reinforcing ribs formed on the surface of the rear section of the rear floor body.

[0007] Preferably, the rear floor body includes a cross beam and a longitudinal beam, and the spare tire mounting bracket is located above one of the cross beams.

[0008] Preferably, the spare tire mounting position is raised at least 30 mm parallel to the rear floor body, and the crossbeam at the bottom of the spare tire mounting bracket is raised together, so that the gap between the rear motor and the floor structure is maintained at least 25 mm.

[0009] Preferably, the spare tire mounting bracket is a "J"-shaped structure, and a nut is convexly welded at the middle position of the spare tire mounting bracket for fixing the spare tire.

[0010] Preferably, a convex rib structure is provided on the side of the spare tire mounting bracket, and the spare tire mounting bracket, the rear floor body and one of the cross beams form a three-layer structure welded in sequence.

[0011] Preferably, the support structure also includes a spare tire support bracket installed on the spare tire mounting position, the top of the spare tire support bracket and the top of the reinforcing rib together constitute the support surface of the spare tire tread, and the position of the spare tire support bracket and the center of the support surface of the reinforcing rib on the spare tire tread form an equilateral triangle structure.

[0012] Preferably, a reinforcing rib is also provided in the middle of the spare tire installation position, which cooperates with the reinforcing rib of the rear section of the rear floor body and the spare tire support bracket to form an equilateral triangle structure to support the spare tire tread.

[0013] Preferably, the spare tire support bracket is a "J"-shaped structure, with convex ribs and flange structures provided on the side.

[0014] Preferably, the support surface of the support structure has an interference amount of 5mm-8mm with the tread of the spare tire under normal conditions.

[0015] Preferably, the spare tire installation structure of the SUV model is used in the rear floor assembly layout structure of the electric four-wheel drive / I CE / PHEV model.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the spare tire installation structure of the SUV model of the present invention is different from the traditional spare tire pool installation structure, meets the requirements of spare tire layout space and structural strength, meets the common needs of the rear floor assembly structure of four different configurations of the platform model, reduces the increase in fixed investment costs caused by differentiated development, and has strong practicality and good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the rear floor body assembly of the spare tire installation structure of an SUV vehicle of the present invention;

[0018] Figure 2 This is a schematic diagram of the installation positions of the rear floor body cross beam and the longitudinal beam of the spare tire installation structure for SUV models of the present invention;

[0019] Figure 3 This is a schematic diagram of the distribution structure of the spare tire mounting bracket structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the spare tire installation state of the present invention;

[0021] Figure 5 This is a schematic diagram of the spare tire mounting bracket in the present invention;

[0022] Figure 6 It is a direct schematic diagram of the spare tire support of the present invention;

[0023] Figure 7 This is a schematic diagram of the connection structure between the spare tire support bracket and the rear floor body of the present invention;

[0024] Figure 8This is a schematic diagram of the connection structure between the spare tire mounting bracket and the rear floor body of the present invention;

[0025] Fig. 9 The spare tire installation diagram of the present invention is shown in FIG. Figure 1 ;

[0026] Fig.10 for Fig. 9 Schematic diagram of the cross section at AA;

[0027] Fig.11 Installation instructions for spare tire Figure 2 ;

[0028] Fig.12 for Fig.11 Schematic diagram of the cross section at BB;

[0029] Fig.13 for Fig.11 Schematic diagram of the cross section at CC;

[0030] Fig.14 Installation instructions for spare tire Figure 3 ;

[0031] Fig.15 for Fig.14 Schematic diagram of the cross section at DD in the middle. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1-15 As shown, the present invention provides a technical solution: comprising a rear floor body 1, a part of the rear floor body 1 forms a spare tire installation position, a spare tire installation bracket 2 is arranged in the middle of the spare tire installation position, and the spare tire installation bracket 2 is used to fix the middle of the wheel hub of the spare tire; the rear floor body 1 comprises a cross beam 4 and a longitudinal beam 5, and the spare tire installation bracket 2 is located above one of the cross beams 4 as a reinforcing cross beam. Figure 5 as well as Figure 8 The structure shown in the figure, the spare tire mounting bracket 2 is a "X"-shaped structure, the bracket is convexly welded with an M8 nut, the material thickness is DC01 / 1.2mm, and reinforcing ribs are added on the side, such as Figure 8 The spare tire mounting bracket, rear floor body and rear floor crossbeam are welded through three layers of welding to improve the rigidity of the spare tire mounting point.

[0034] With the spare tire mounting bracket 2 as the center, a supporting structure is provided in a circular array on the spare tire mounting position, and the supporting structure is used to support the tread of the spare tire;

[0035] The support structure at least includes a reinforcing rib 6 formed on the rear section of the rear floor body 1. The support structure also includes a spare tire support bracket 3 installed on the spare tire installation position, the top of the spare tire support bracket 3 and the top of the reinforcing rib 6 together form a support surface for the spare tire tread, and the position of the spare tire support bracket 3 and the center of the support surface of the reinforcing rib 6 on the spare tire tread form an equilateral triangle structure. The middle part of the spare tire installation position is also provided with a reinforcing rib 6, which cooperates with the reinforcing rib 6 of the rear section of the rear floor body 1 and the spare tire support bracket 3 to form an equilateral triangle structure to support the spare tire tread.

[0036] The spare tire support bracket 3 is a "J"-shaped structure, the material thickness is DC01 / 1.5mm, and the side is added with reinforcing ribs and flange structures to improve the rigidity of the spare tire support point, such as Figure 7 As shown, the spare tire support bracket is fixedly welded to the rear floor body 1 through four welding points. Fig.10 Middle AA section, Fig.12 Medium BB, Fig.13 As shown in the CC section, the spare tire is connected to the vehicle body mounting bracket through a fixing bolt, one supporting area is supported by a supporting bracket + seismic isolation rubber block, and the other two supporting areas are supported by the rear floor body reinforcement ribs. The rear floor body reinforcement ribs are 10mm high, forming a triangular support structure to ensure the stability of the spare tire after installation. The support surface of the support structure has an interference of 5mm-8mm with the spare tire tread under normal conditions to ensure installation stability.

[0037] like Fig.14 , Fig.15 As shown in the middle DD section, in order to ensure the platform universality and meet the I CE / PHEV / electric four-wheel drive layout solutions, the rear floor body has a raised area for installing the spare tire by at least 30mm, preferably 30mm, and the reinforced crossbeam at the bottom is raised together with the floor surface to ensure that the gap with the electric four-wheel drive rear motor is greater than 25mm.

[0038] In actual application, the spare tire fixing point rigidity / strength CAE analysis is qualified, the enhanced road test vehicle verification is qualified, and the spare tire layout and placement are verified without problems. The actual vehicle verification shows that the spare tire is installed on the rear floor body, the installation support structure is stable, and there are no abnormal noises or other problems.

[0039] In summary, in this embodiment, the floor surface where the spare tire installation position is located is partially parallel and raised by 30mm, and a rear floor reinforcement beam is designed under the spare tire installation bracket 2. Through the support bracket 3, the installation bracket 2, the rear floor reinforcement beam and the floor rib support, the layout space of different configurations of electric four-wheel drive / I CE / PHEV is guaranteed. The design structure is simple and the layout is reasonable. It meets the universal requirements of the rear floor assembly of different configurations of vehicle models, reduces the fixed investment development cost, and has strong practicality and good application prospects.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spare tire installation structure for an SUV vehicle, characterized in that: It comprises a rear floor body (1), a part of the rear floor body (1) forms a spare tire installation position, a spare tire installation bracket (2) is arranged in the middle of the spare tire installation position, and the spare tire installation bracket (2) is used to fix the middle of the wheel hub of the spare tire; With the spare tire mounting bracket (2) as the center, a supporting structure is provided in a circular array on the spare tire mounting position, and the supporting structure is used to support the tread of the spare tire; The supporting structure at least comprises reinforcing ribs (6) formed on the rear section surface of the rear floor body (1).

2. The spare tire installation structure for an SUV model according to claim 1, characterized in that: The rear floor body (1) comprises a crossbeam (4) and a longitudinal beam (5), and the spare tire mounting bracket (2) is located above one of the crossbeams (4).

3. The spare tire installation structure for an SUV model according to claim 2, characterized in that: The spare tire installation position is raised at least 30 mm in parallel with the rear floor body (1), and the crossbeam (4) at the bottom of the spare tire installation bracket (2) is raised together, so that the gap between the rear motor and the floor structure is maintained at least 25 mm.

4. The spare tire installation structure for an SUV model according to claim 1, characterized in that: The spare tire mounting bracket (4) is a "J"-shaped structure, and a nut is convexly welded at the middle position of the spare tire mounting bracket (4) for fixing the spare tire.

5. The spare tire installation structure for an SUV model according to claim 4, characterized in that: A convex rib structure is provided on the side of the spare tire mounting bracket (4), and the spare tire mounting bracket (4), the rear floor body (1) and one of the cross beams (4) form a three-layer structure that is welded in sequence.

6. The spare tire installation structure for an SUV model according to claim 1, characterized in that: The support structure also includes a spare tire support bracket (3) installed on the spare tire installation position, the top of the spare tire support bracket (3) and the top of the reinforcing rib (6) together form a support surface of the spare tire tread, and the position of the spare tire support bracket (3) and the center of the support surface of the reinforcing rib (6) on the spare tire tread form an equilateral triangle structure.

7. The spare tire installation structure for an SUV model according to claim 6, characterized in that: A reinforcing rib (6) is also provided in the middle of the spare tire installation position, which cooperates with the reinforcing rib (6) at the rear section of the rear floor body (1) and the spare tire support bracket (3) to form an equilateral triangle structure to support the spare tire tread.

8. The spare tire installation structure for an SUV model according to claim 7, characterized in that: The spare tire support bracket (3) is a "J"-shaped structure, and a convex rib and a flange structure are arranged on the side.

9. The spare tire installation structure for an SUV model according to claim 1, characterized in that: The support surface of the support structure has an interference amount of 5mm-8mm with the tread of the spare tire under normal conditions.

10. The spare tire installation structure for an SUV model according to claim 1, characterized in that: The spare tire installation structure of the SUV model is applied in the rear floor assembly layout structure of electric four-wheel drive / ICE / PHEV models.

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