Reinforcing structure of side-opening spare tire back door and automobile

Abstract

The utility model discloses a kind of side opening type reinforcing structure of spare tire hanging back door and car. It belongs to the technical field of automobile manufacturing. It mainly includes reinforcing structure assembly, reinforcing structure assembly side is connected with outer door panel, the other side is connected with inner door panel, inner door panel is connected with outer door panel, reinforcing structure assembly includes upper reinforcing stamping plate, two back door hinge assembly are connected in upper reinforcing stamping plate side, upper reinforcing stamping plate bottom side is connected with side reinforcing stamping plate one, upper reinforcing stamping plate other side is connected with side reinforcing stamping plate two, side reinforcing stamping plate one and side reinforcing stamping plate two are three supports of "m" shape structure, upper reinforcing stamping plate middle and lower part are connected with lower reinforcing stamping plate, the three supports of side reinforcing stamping plate one are sequentially connected with upper reinforcing stamping plate, lower reinforcing stamping plate and outer door panel from top to bottom. The utility model will spare tire support on the mode of reinforcing structure assembly, solve the problem such as welding point tear, hetero direction caused by back door drooping.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing technology, and more specifically, it relates to a reinforced structure for a side-opening spare tire mounting door and an automobile. Background Technology

[0002] Existing externally mounted spare tires for off-road vehicles typically use a spare tire mounting bracket to mount the tailgate assembly, which is then connected to the vehicle body via hinges and a lock. The tailgate assembly needs sufficient rigidity and strength to maintain normal opening and closing functions after the spare tire is installed. The structure of a side-opening externally mounted spare tire tailgate assembly is described below. Existing tailgate assemblies with spare tires have four constraint points connecting to the vehicle body: the upper and lower hinges, the tailgate lock, and the tailgate limit block. The main Z-axis stress points are the upper and lower hinges. The tailgate lock and tailgate limit block only provide Z-axis restraint, not Z-axis stress points. Because the spare tire is mounted on the tailgate, the overall weight is relatively large. Combined with the downward impact acceleration under extreme conditions, the entire tailgate is prone to sagging, leading to weld tearing, abnormal noise, and other problems. The purpose of this invention is to solve the problems of weld tearing and abnormal noise caused by tailgate sagging and improve product quality.

[0003] To address the aforementioned technical problems, this application proposes a solution. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a reinforced structure and automobile for a side-opening spare tire mounting tailgate. The way in which the spare tire bracket is fixed on the reinforced structure assembly solves the problems of weld tearing and misalignment caused by the sagging of the tailgate.

[0005] The aforementioned reinforcement structure for a side-opening spare tire mounting tailgate and the vehicle thereof include a reinforcement structure assembly. An outer door panel is fixedly connected to one side of the reinforcement structure assembly, and an inner door panel is fixedly connected to the other side. The inner door panel is fixedly connected to the outer door panel. The reinforcement structure assembly includes an upper reinforcing stamping plate, which is a semi-enclosed structure with openings at the bottom and center. Two tailgate hinge assemblies are fixedly connected to one side of the upper reinforcing stamping plate. A first side reinforcing stamping plate is fixedly connected to one side of the bottom of the upper reinforcing stamping plate, and a second side reinforcing stamping plate is fixedly connected to the other side of the upper reinforcing stamping plate. Both the first and second side reinforcing stamping plates are "m" shaped structures with three supports. The middle and lower middle parts of the upper reinforcing stamping plate are fixedly connected to the lower reinforcing stamping plate. The three supports of the first side reinforcing stamping plate are fixedly connected to the upper reinforcing stamping plate, the lower reinforcing stamping plate, and the outer door panel from top to bottom. The back of the first side reinforcing stamping plate is fixedly connected to the inner door panel. The upper and lower supports of the second side reinforcing stamping plate are fixedly connected to the upper reinforcing stamping plate. The middle support of the second side reinforcing stamping plate is fixedly connected to the lower reinforcing stamping plate. The back of the second side reinforcing stamping plate is fixedly connected to the inner door panel.

[0006] Preferably, the lower reinforcing stamping plate has four bolt holes 2 evenly distributed in the middle part, and a fixing plate is fixedly connected to the bolt holes 2 on the side of the lower reinforcing stamping plate near the outer door panel. The fixing plate has fixing holes, and the fixing holes are aligned with the bolt holes 2.

[0007] Preferably, the outer door panel has a rear window opening at the upper part of the outer side, a high-position warning light mounting groove at the upper part of the outer door panel above the rear window opening, four outer door mounting holes at the middle position of the lower part of the outer door panel, the outer door mounting holes are aligned with bolt holes, a spare tire bracket is fixedly connected to the outer door mounting holes, a door handle mounting position is provided on the side of the outer door mounting holes away from the rear door hinge assembly, and an expansion opening is provided on the other side.

[0008] Preferably, the spare tire bracket includes two fixed stamping plates, each of which has two bolt holes 1 aligned with bolt holes 2 and fixedly connected by bolts. Two support ribs are fixedly connected to the fixed stamping plates and are fixed to the upper and lower fixed stamping plates. The support ribs have an "n" shaped structure and a backing plate is fixedly connected to the back of the support ribs. Fixed bolts are screwed onto the backing plate.

[0009] Preferably, the upper part of the inner door panel has a second rear window opening, which coincides with the first rear window opening.

[0010] Preferably, the outer door panel, inner door panel, and reinforcing structure assembly are fixed together by welding.

[0011] Preferably, the outer door panel, the inner door panel, and each part of the reinforcing structure assembly are all made by stamping.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model replaces the original connection between the outer and inner door panels with a centrally fixed connection to a reinforcing structure assembly. The spare tire bracket passes through the outer door panel and is fixed to the reinforcing structure assembly. The reinforcing structure assembly is fixedly connected to the outer and inner door panels through multiple connection points, making the spare tire mounted on the spare tire bracket more secure. This prevents problems such as weld tearing and abnormal noise caused by the weight of the spare tire during vehicle operation, which can lead to the rear door sagging. This greatly improves the overall structural stability and extends the product's service life. Attached Figure Description

[0013] Figure 1 This is an exploded view of the overall structure of this utility model; Figure 2 A detailed structural diagram of the reinforced structural assembly; Figure 3 To enhance the detailed exploded view of the structural assembly; Figure 4 This is a cross-sectional view of the overall structure of this utility model; Figure 5 A schematic diagram of the overall structure of the spare tire bracket; Figure 6 This is a schematic diagram of the overall structure of this utility model; Figure 7 This is a schematic diagram of the overall structure from another perspective of the present invention.

[0014] In the diagram: 1. Outer door panel; 101. Rear window opening 1; 102. High-position warning light mounting slot; 103. Door handle mounting position; 104. Outer door mounting hole; 105. Expansion opening; 2. Spare tire bracket; 201. Hanging plate; 202. Fixing bolt; 203. Support rib; 204. Fixing stamping plate; 2041. Bolt hole 1; 3. Inner door panel; 301. Rear window opening 2; 4. Reinforced structure assembly; 401. Upper reinforcing stamping plate; 402. Mounting plate; 403. Side reinforcing stamping plate 1; 404. Lower reinforcing stamping plate; 4041. Bolt hole 2; 405. Side reinforcing stamping plate 2; 406. Fixing plate; 4061. Fixing hole; 5. Rear door hinge assembly. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings: The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0016] like Figures 1 to 7As shown, a reinforced structure for a side-opening spare tire mounting tailgate and a vehicle are disclosed. The structure includes a reinforced structure assembly 4. An outer door panel 1 is fixedly connected to one side of the reinforced structure assembly 4, and an inner door panel 3 is fixedly connected to the other side. The inner door panel 3 is fixedly connected to the outer door panel 1. The reinforced structure assembly 4 includes an upper reinforcing stamping plate 401, which is a semi-enclosed structure with openings at the bottom and center. Two tailgate hinge assemblies 5 are fixedly connected to one side of the upper reinforcing stamping plate 401 for connection to the vehicle body, allowing the tailgate to rotate. A first side reinforcing stamping plate 403 is fixedly connected to one side of the bottom of the upper reinforcing stamping plate 401, and a second side reinforcing stamping plate 405 is fixedly connected to the other side. Both the first and second side reinforcing stamping plates 403 and 405 are "M"-shaped structures with three supports, providing greater stability. The upper reinforcing stamping plate 401 is fixedly connected to the middle and lower part of the lower reinforcing stamping plate 404. The three supports of the side reinforcing stamping plate 403 are fixedly connected to the upper reinforcing stamping plate 401, the lower reinforcing stamping plate 404 and the outer door panel 1 from top to bottom. The back of the side reinforcing stamping plate 403 is fixedly connected to the inner door panel 3. The upper and lower supports of the side reinforcing stamping plate 405 are fixedly connected to the upper reinforcing stamping plate 401. The middle support of the side reinforcing stamping plate 405 is fixedly connected to the lower reinforcing stamping plate 404. The back of the side reinforcing stamping plate 405 is fixedly connected to the inner door panel 3. This design can reduce the kinetic energy generated by the swaying of the spare tire during vehicle operation by transmitting it through the reinforcing mechanism assembly 4. In the event of a rear-end collision, when the rear vehicle hits the front vehicle, the entire tailgate mechanism can play a role in collapsing and absorbing energy, reducing the amount of intrusion and making it safer.

[0017] like Figure 3 As shown, four bolt holes 4041 are evenly distributed in the middle of the lower reinforcing stamping plate 404. A fixing plate 406 is fixedly connected to the bolt holes 4041 on the side of the lower reinforcing stamping plate 404 near the outer door panel 1. The fixing plate 406 has fixing holes 4061, which are aligned with the bolt holes 4041. A rear window opening 101 is provided on the upper outer side of the outer door panel 1. A high-position warning light mounting groove 102 is provided on the outer door panel 1 above the rear window opening 101 for easy installation of the high-position warning light. Four outer door mounting holes 104 are provided in the middle of the lower part of the outer door panel 1. The outer door mounting holes 104 are aligned with the bolt holes 4041. A spare tire bracket 2 is fixedly connected to the outer door mounting holes 104. A door handle mounting position 103 is provided on the side of the outer door mounting holes 104 away from the rear door hinge assembly for easy installation of the door handle and easy opening and closing of the rear door. An expansion port 105 is provided on the other side to facilitate the later installation of items such as a get-out-of-trouble plate or a radio antenna.

[0018] The spare tire bracket 2 includes two fixed stamping plates 204. Each fixed stamping plate 204 has two bolt holes 2041, which are aligned with bolt holes 4041. The spare tire bracket 2 is directly connected to the lower stamping plate 404. During vehicle operation, the force generated by the spare tire's movement is transmitted to the reinforcing mechanism assembly 4, and then to the entire tailgate, preventing stress concentration and damage to the tailgate. Two support ribs 203 are fixedly connected to the fixed stamping plates 204 via bolts. The support ribs 203 are fixed to the upper and lower fixed stamping plates 204 and have an "n" shape. The "n" shape allows the support ribs 203 to be held in place by the wheel hub when the spare tire is placed on top, making the connection more stable and preventing wobbling. A mounting plate 201 is fixedly connected to the back of the support rib 203, and a fixing bolt 202 is screwed onto the mounting plate 201. The spare tire is then secured by the fixing bolts 202.

[0019] The inner door panel 3 has a rear window opening 301 at its upper part, which overlaps with the rear window opening 101 for easy installation of the rear window. The outer door panel 1, inner door panel 3, and reinforcing structure assembly 4 are fixed together by welding. Welding ensures structural stability, and the welding method used is MIG welding, a common technique in this industry. All parts of the outer door panel 1, inner door panel 3, and reinforcing structure assembly 4 are manufactured by stamping. One-piece stamping reduces the number of parts and connections.

[0020] This utility model embodiment also provides a vehicle including a reinforced structure using the side-opening spare tire mounting hatch as described above. Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A reinforcing structure for a side-opening spare tire mounting hatch and a vehicle, comprising a reinforcing structure assembly (4), wherein an outer door panel (1) is fixedly connected to one side of the reinforcing structure assembly (4), and an inner door panel (3) is fixedly connected to the other side, wherein the inner door panel (3) is fixedly connected to the outer door panel (1), characterized in that: The reinforcing structure assembly (4) includes an upper reinforcing stamping plate (401), which is a semi-enclosed structure with openings at the bottom and middle. Two back door hinge assemblies (5) are fixedly connected to one side of the upper reinforcing stamping plate (401). A side reinforcing stamping plate one (403) is fixedly connected to one side of the bottom of the upper reinforcing stamping plate (401), and a side reinforcing stamping plate two (405) is fixedly connected to the other side of the upper reinforcing stamping plate (401). The side reinforcing stamping plate one (403) and the side reinforcing stamping plate two (405) are both "m" shaped structures with three supports. The upper reinforcing stamping plate (401) has a middle support. The lower part is fixedly connected to the lower reinforcing stamping plate (404). The three supports of the first side reinforcing stamping plate (403) are fixedly connected to the upper reinforcing stamping plate (401), the lower reinforcing stamping plate (404) and the outer door panel (1) from top to bottom. The back of the first side reinforcing stamping plate (403) is fixedly connected to the inner door panel (3). The upper and lower supports of the second side reinforcing stamping plate (405) are fixedly connected to the upper reinforcing stamping plate (401). The middle support of the second side reinforcing stamping plate (405) is fixedly connected to the lower reinforcing stamping plate (404). The back of the second side reinforcing stamping plate (405) is fixedly connected to the inner door panel (3).

2. The reinforced structure of the side-opening spare tire mounting hatch and the automobile according to claim 1, characterized in that: The lower reinforcing stamping plate (404) has four bolt holes (4041) evenly distributed in the middle part. A fixing plate (406) is fixedly connected to the bolt holes (4041) on the side of the lower reinforcing stamping plate (404) near the outer door panel (1). The fixing plate (406) has fixing holes (4061) that are aligned with the bolt holes (4041).

3. The reinforced structure of the side-opening spare tire mounting hatch and the automobile according to claim 2, characterized in that: The outer door panel (1) has a rear window opening (101) on the upper part of the outer side. A high-position warning light mounting groove (102) is provided on the outer door panel (1) above the rear window opening (101). Four outer door mounting holes (104) are provided in the middle of the lower part of the outer door panel (1). The outer door mounting holes (104) are aligned with bolt holes (4041). A spare tire bracket (2) is fixedly connected to the outer door mounting holes (104). A door handle mounting position (103) is provided on the side of the outer door mounting hole (104) away from the rear door hinge assembly, and an expansion opening (105) is provided on the other side.

4. The reinforced structure of the side-opening spare tire mounting hatch and the automobile according to claim 3, characterized in that: The spare tire bracket (2) includes two fixed stamping plates (204). Each fixed stamping plate (204) has two bolt holes (2041). The bolt holes (2041) are aligned with the bolt holes (4041) and are fixedly connected by bolts. Two support ribs (203) are fixedly connected to the fixed stamping plate (204). The support ribs (203) are fixed to the upper and lower fixed stamping plates (204). The support ribs (203) have an "n" shaped structure. A hanging plate (201) is fixedly connected to the back of the support ribs (203). A fixing bolt (202) is screwed onto the hanging plate (201).

5. The reinforced structure of the side-opening spare tire mounting hatch and the automobile according to claim 1, characterized in that: The outer door panel (1) has a mounting plate (402) fixedly connected to the rear window opening (101).

6. The reinforced structure of the side-opening spare tire mounting door and the automobile according to claim 3, characterized in that: The inner door panel (3) has a rear window opening two (301) on the upper part, and the rear window opening two (301) coincides with the rear window opening one (101).

7. The reinforced structure of the side-opening spare tire mounting hatch and the automobile according to claim 1, characterized in that: The outer door panel (1), inner door panel (3), and reinforcing structure assembly (4) are fixed together by welding.

8. The reinforced structure of the side-opening spare tire mounting door and the automobile according to claim 1, characterized in that: The outer door panel (1), the inner door panel (3), and the various parts of the reinforcing structure assembly (4) are all made by stamping.

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