A lightweight spare tire carrier

Abstract

The utility model discloses a kind of light spare tire support, including with rear door hinge connection light support, light support is fixed with side opening type rear door, with rear door rotation, there is a vertical groove plate fixedly installed in the light support, the inside of the vertical groove plate is equipped with folding frame, spare tire is loaded by the folding frame;The core bearing component of this support adopts targeted material design: light support is formed by casting with cast aluminum material, vertical groove plate selects high-strength aluminum alloy, compared with traditional steel support, overall weight reduces by more than 30%.Meanwhile. Light support is fixed flexibly by connecting groove and door hinge, force transmission path is clear, avoid local stress concentration, prolong the service life of installation site (rear door).

Description

Technical Field

[0001] This utility model relates to a lightweight spare tire bracket. Background Technology

[0002] As the automotive industry rapidly develops towards lightweighting and energy conservation, structural optimization and material upgrades of various vehicle components have become key research and development priorities in the industry. Among them, the spare tire storage device, as an essential component of automobiles, directly affects the convenience of vehicle use, load-bearing safety, and the overall lightweighting level of the vehicle.

[0003] Currently, car spare tire mounts on the market are mainly divided into two types: built-in and external. Built-in mounts typically place the spare tire at the bottom of the trunk or under the chassis. This type of structure has obvious drawbacks: placing it at the bottom of the trunk takes up a lot of storage space and reduces the vehicle's loading flexibility; and mounting it under the chassis requires special tools to remove, which is cumbersome, especially in outdoor emergency tire changing scenarios, where it is difficult for a single person to complete quickly, and when the chassis is low, it is easily damaged by road obstacles.

[0004] While external mounting brackets have solved the storage space problem to some extent, traditional external mounting structures mostly use rigid connection brackets, which have three major problems: First, the material is mostly ordinary steel, which is heavy, increasing the non-load-bearing load on the vehicle and affecting fuel economy, and also increasing the stress on the mounting parts (such as the rear door and frame); Second, the spare tire loading and unloading process is complicated, requiring multiple people to lift it or to use auxiliary tools, making it impractical in emergency scenarios.

[0005] Therefore, developing a lightweight spare tire bracket that combines lightweight, high strength, and ease of operation has become an urgent need to address the pain points of existing technologies. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a lightweight spare tire bracket that combines lightweight, high strength and easy operation.

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A lightweight spare tire bracket includes a lightweight bracket connected to a rear door hinge. The lightweight bracket is fixed to a side-opening rear door. Subsequently, the door rotates, and a vertical slot plate is fixedly installed through the lightweight bracket. A folding frame is installed inside the vertical slot plate, and the spare tire is loaded through the folding frame.

[0009] Preferably, the lightweight bracket is Y-shaped and formed by casting. The inner side of the lightweight bracket is provided with multiple reinforcing ribs. A connecting groove for bolts to pass through is machined on the lightweight bracket. A sleeve is provided at the two fork positions of the lightweight bracket, and the surface of the sleeve is provided with an adjustment groove.

[0010] Preferably, the folding frame includes a first rotating plate, a second rotating plate, and a spare tire mounting base. One end of the first rotating plate has a first shaft tube, through which a support shaft passes. The support shaft is fixed to the inner side of the vertical slot plate near the bottom. The other end of the first rotating plate has a second shaft tube, with an ear plate at its outer end face. The ear plate has a through hole on its surface and a first threaded hole at the inner top position of the vertical slot plate. When the first rotating plate folds up along the support shaft to the inner side of the vertical slot plate, the through hole and the first threaded hole are coaxial. A locking screw connects the through hole and the first threaded hole. The second rotating plate has a rotating groove at its upper end, and a fixed shaft is fixed at the top of the rotating groove. The fixed shaft is rotatably engaged with the second shaft tube through a bearing. Positioning seats are provided near the bottom on both sides of the second rotating plate. Positioning screws are screwed into both sides of the vertical groove plate. The positioning screws have positioning parts. When the locking screw passes through the through hole and is screwed into the first threaded hole, the positioning seat and the positioning part are opposite. At this time, the positioning screw is screwed in so that the positioning part is inserted into the positioning seat to fix the second rotating plate. The spare tire mounting seat is fixed near the lower part of the surface of the second rotating plate.

[0011] Preferably, the spare tire mounting bracket includes a mounting base and a fixed-axis screw. The mounting base is fixed to the second rotating plate via a flange. A second threaded hole is provided at the axial center of the end of the mounting base away from the second rotating plate. The fixed-axis screw is screwed into the second threaded hole. A baffle is fixedly provided on the fixed-axis screw. A nut is threaded onto the fixed-axis screw. A tapered vibration damping block is sleeved on the fixed-axis screw. The vibration damping block is sandwiched between the baffle and the nut. The fixed-axis screw passes through the fixed hub center hole, and a portion of the vibration damping block is inserted into the hub center hole.

[0012] Preferably, the outer wall of the fixed-axis screw is provided with a plurality of force-bearing holes in a ring shape near the outer end.

[0013] Preferably, multiple vibration damping pads made of elastic rubber are embedded at the end face of the mounting base, and the vibration damping pads act on the inner end face of the wheel hub.

[0014] The beneficial effects of this utility model are:

[0015] One advantage is that it achieves a balance between lightweight and high strength, thus improving the overall performance of the vehicle.

[0016] The core load-bearing components of this bracket feature a targeted material design: the lightweight bracket is made of cast aluminum through casting, while the vertical slot plates are made of high-strength aluminum alloy, reducing the overall weight by more than 30% compared to traditional steel brackets. Simultaneously, the Y-shaped lightweight bracket incorporates multiple reinforcing ribs on its inner side, forming a three-dimensional stress-bearing structure. Combined with the excellent formability and mechanical stability of cast aluminum, this ensures sufficient load-bearing capacity while maintaining lightweight design, stably supporting spare tires of various sizes. This solves the problem of traditional aluminum alloy brackets where "lightweight and high strength cannot be simultaneously achieved." Furthermore, the lightweight bracket is flexibly fixed to the door hinge via connecting slots, ensuring a clear force transmission path, avoiding localized stress concentration, and extending the service life of the installation location (rear door).

[0017] Second advantage: It is easy and effortless to operate, enhancing its practicality in emergency scenarios.

[0018] This innovative bracket adopts a folding frame structure composed of two rotating plates. Through the rotational cooperation of the first shaft tube and the support shaft, and the second shaft tube and the fixed shaft, the spare tire can be rotated down and folded for storage. When removing the spare tire, simply loosen the positioning screw and the locking screw to push the folding frame to rotate down, allowing the spare tire to naturally contact the ground. No manual lifting is required, and a single person can complete the spare tire removal. After replacement, the used tire is put back into the spare tire mounting seat, and the folding frame is pushed in the opposite direction to push it into the vertical slot plate. It is double-secured by the locking screw and the positioning screw. The operation time is reduced to 1 / 3 of that of existing brackets, greatly improving the efficiency and convenience of emergency tire changing.

[0019] Thirdly, the multi-locking and vibration damping design enhances stability and reliability during use.

[0020] This bracket incorporates multiple safety mechanisms in its folding mechanism and spare tire mounting structure: After the folding bracket is stowed, the ear plate and the threaded hole at the top of the vertical slot plate are locked by locking screws. Simultaneously, the positioning part of the positioning screw inserts into the positioning seat of the second rotating plate, forming a "two-point locking" structure. This effectively prevents the folding bracket from loosening during vehicle operation, solving the problem of unreliable locking in traditional folding brackets. At the spare tire mounting location, vibration damping blocks and damping plates are installed. The vibration damping blocks are partially inserted into the center hole of the wheel hub, and the damping plates fit against the inner end face of the wheel hub. This dual vibration damping structure effectively absorbs the vibration energy generated by the spare tire during vehicle operation, preventing rigid collisions between the spare tire and the bracket and reducing noise pollution. At the same time, the damping plates isolate the wheel hub from direct contact with the mounting base, preventing wear caused by high-frequency vibration and extending the service life of the spare tire and the bracket.

[0021] Fourthly, it has a compact structure and saves space.

[0022] When fully stowed, the folding bracket can be embedded into the vertical slot plate, forming a compact integrated structure with the lightweight bracket. Compared to traditional external brackets, it reduces the space occupied by the bracket by more than 40%, avoiding the risk of scratches caused by the bracket protruding while parking. At the same time, it does not occupy the interior space of the trunk, ensuring the vehicle's storage capacity. It solves the core contradiction of "space occupation" between built-in and external brackets, and improves the flexibility of vehicle use. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a diagram showing the usage status of this device;

[0025] Figure 2 Front view of the lightweight support;

[0026] Figure 3 This is a magnified view of point A;

[0027] Figure 4 This is a diagram showing the folded storage of this device;

[0028] Figure 5 This is an unfolded diagram of the device;

[0029] Figure 6 This is a side view of the second rotating plate;

[0030] Figure 7 This is a magnified view of point B. Detailed Implementation

[0031] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0032] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0033] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, in the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "socket," "connect," "through," and "plug-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] See Figure 1 The lightweight spare tire bracket shown includes a lightweight bracket 1 connected to the rear door hinge. The lightweight bracket 1 is fixed to the side-opening rear door. Subsequently, the door rotates, and a vertical slot plate 2 is fixedly installed through the lightweight bracket 1. The vertical slot plate 2 is made of high-strength aluminum alloy. A folding frame 3 is installed inside the vertical slot plate 2, and the spare tire is loaded through the folding frame 3.

[0037] In the above technical solution, the folding frame 3 facilitates the removal and installation of the spare tire. When the spare tire needs to be removed, the folding frame 3 is rotated and lowered until the spare tire contacts the ground, at which point the spare tire can be easily removed. After replacement, the removed tire is reinstalled on the folding frame 3, and then the folding frame 3 is folded upwards and pushed into the vertical groove plate 2, thus completing the tire storage.

[0038] It is simple and convenient to operate, extremely labor-saving, and can be operated by a single person.

[0039] See Figure 1 , Figure 2 and Figure 3As shown, the lightweight bracket 1 is Y-shaped and formed by casting. The lightweight bracket 1 is made of cast aluminum. Multiple reinforcing ribs 11 are provided on the inner side of the lightweight bracket 1. A connecting groove 12 for passing through bolts is machined on the lightweight bracket 1. A sleeve 13 is provided at the two fork positions of the lightweight bracket 1. An adjustment groove 14 is provided on the surface of the sleeve 13.

[0040] The door hinge 4 includes a rotating base 41 and a connecting rod 42. The connecting rod 42 is rotatably connected to the rotating base 41 by a pin. The connecting rod 42 is fixed to the door. The end of the connecting rod 42 away from the rotating base 41 is inserted into the insert 13 and fixed by a bolt 43. The bolt 43 passes through the adjustment groove 14 and can slide along the adjustment groove 14 to adjust the installation position of the lightweight bracket 1.

[0041] The lightweight aluminum bracket 1 is lightweight yet has sufficient load-bearing capacity.

[0042] See Figures 4 to 7 As shown, the folding frame 3 includes a first rotating plate 31, a second rotating plate 32, and a spare tire mounting base 33. One end of the first rotating plate 31 is provided with a first shaft tube 34, and a support shaft 35 is inserted inside the first shaft tube 34. The first shaft tube 34 and the support shaft 35 are fitted together. The support shaft 35 is fixed to the inner side of the vertical slot plate 2 near the bottom. The other end of the first rotating plate 31 is provided with a second shaft tube 36. An ear plate 37 is provided on the outer end face of the second shaft tube 36. A through hole 371 is provided on the surface of the ear plate 37. A first threaded hole 21 is provided at the inner top position of the vertical slot plate 2. When the first rotating plate 31 is folded up along the support shaft 35... Inside the vertical slot plate 2, the through hole 371 and the first threaded hole 21 are coaxial, and a locking screw 372 is connected between the through hole 371 and the first threaded hole; the upper end of the second rotating plate 32 is provided with a rotating groove 321, and a fixed shaft 322 is fixed at the inner top position of the rotating groove 321. The fixed shaft 322 is rotatably engaged with the second shaft tube 36 through a bearing. A positioning seat 323 is provided near the bottom position on both sides of the second rotating plate 32. A positioning screw 22 is screwed into both sides of the vertical slot plate 2. The positioning screw 22 has a positioning part 23, which is frustum-shaped and its diameter gradually decreases towards the positioning seat 323. When the locking screw 372 passes through the through hole 371 and is screwed into the first threaded hole 21, the positioning seat 323 is opposite to the positioning part 23. At this time, the positioning screw 22 is screwed in so that the positioning part 23 is inserted into the positioning seat 323 to fix the second rotating plate 32. The spare tire mounting seat 33 is fixed to the lower part of the surface of the second rotating plate 32.

[0043] In the above technical solution, when pushing the tire back, the tire is first installed on the spare tire mounting seat 33, and then the tire is pushed up, so that the second rotating plate 32 rotates along the second shaft tube 36 and the first shaft tube 34 rotates along the support shaft 35 until the first rotating plate 31 is pushed back into the vertical groove plate 2, and the through hole 372 and the first threaded hole 21 are aligned. At this time, the locking screw 372 is immediately screwed in to complete the fixing of the first rotating plate 31.

[0044] Press down on the tire to ensure that the lower end of the second rotating plate 32 rotates into the vertical groove plate 2 and that the positioning seat 323 is opposite to the positioning part 23. Then tighten the positioning screw 22 so that the positioning part 23 and the positioning seat 323 cooperate, and the second rotating plate 32 is fixed.

[0045] After the above fixation is completed, the folding frame 3 is locked.

[0046] When it is necessary to remove the tire, first loosen the positioning screws 22 on both sides, then push the tire with your hands, then unscrew the locking screw 372, then hold the tire with both hands, and unfold the second rotating plate 32 and the first rotating plate 31 until the tire touches the ground.

[0047] See Figure 5 and Figure 6 As shown, the spare tire mounting bracket 33 includes a mounting base 331 and a fixed-axis screw 332. The mounting base 331 is fixed to the second rotating plate 32 via a flange. A second threaded hole 333 is provided at the axial center of the end of the mounting base 331 away from the second rotating plate 32. The fixed-axis screw 332 is screwed into the second threaded hole 333. A baffle 334 is fixedly provided on the fixed-axis screw 332. A nut 335 is threaded onto the fixed-axis screw 332. A tapered vibration damping block 336 is sleeved on the fixed-axis screw 332. The vibration damping block 336 is sandwiched between the baffle 334 and the nut 335. The fixed-axis screw 332 passes through the fixed hub center hole, and a portion of the vibration damping block 336 is inserted into the hub center hole.

[0048] In the above technical solution, by screwing in the fixed shaft screw 332, the vibration damping block 336 is inserted into the center hole of the wheel hub, and the inner end face of the wheel hub is limited by the mounting seat 331 to complete the wheel hub clamping of the tire.

[0049] After clamping, the vibration of the wheel hub is absorbed by the vibration damping block 336. The vibration damping block 336 is made of polyurethane rubber (PU).

[0050] The fixed-axis screw 332 has multiple force-bearing holes 3321 arranged in a ring near the outer end of its outer wall.

[0051] A force-applying rod can be inserted through the force-receiving hole 3321 to apply rotational torque.

[0052] Multiple vibration damping pads 3311 made of elastic rubber are embedded at the end face of the mounting base 331, and the vibration damping pads 3311 act on the inner end face of the wheel hub.

[0053] The vibration damping pad 3311 is used to contact the inner end face of the wheel hub to avoid friction between the wheel hub and the mounting base 331. Especially under high-frequency vibration conditions, it can protect the wheel hub.

[0054] Vibration damping pad 3311 is also made of polyurethane rubber (PU).

[0055] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0056] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0057] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0058] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0059] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0060] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lightweight spare tire support, characterized in that: It includes a lightweight bracket connected to the rear door hinge. The lightweight bracket is fixed to the side-opening rear door. Subsequently, the door rotates and a vertical slot plate is fixedly installed through the lightweight bracket. A folding frame is installed inside the vertical slot plate, and the spare tire is loaded through the folding frame.

2. The lightweight spare tire bracket according to claim 1, characterized in that: The lightweight bracket is Y-shaped and formed by casting. Multiple reinforcing ribs are provided on the inner side of the lightweight bracket. Connecting grooves for bolts are machined on the lightweight bracket. Insert sleeves are provided at the two fork positions of the lightweight bracket, and adjustment grooves are provided on the surface of the insert sleeves.

3. The lightweight spare tire bracket according to claim 1, characterized in that: The folding frame includes a first rotating plate, a second rotating plate, and a spare tire mounting base. One end of the first rotating plate is provided with a first shaft tube, and a support shaft is inserted inside the first shaft tube. The support shaft is fixed to the inner side of the vertical slot plate near the bottom. The other end of the first rotating plate is provided with a second shaft tube, and an ear plate is provided at the outer end face of the second shaft tube. The ear plate is provided with a through hole on its surface, and a first threaded hole is provided at the inner top position of the vertical slot plate. When the first rotating plate is flipped up along the support shaft to the inner side of the vertical slot plate, the through hole and the first threaded hole are coaxial, and a locking screw is connected between the through hole and the first threaded hole. The upper end of the second rotating plate is provided with a rotating groove, and a fixed shaft is fixed at the top of the rotating groove. The fixed shaft is rotatably engaged with the second shaft tube through a bearing. Positioning seats are provided on both sides of the second rotating plate near the bottom. Positioning screws are screwed into both sides of the vertical groove plate. The positioning screws have positioning parts. When the locking screw passes through the through hole and is screwed into the first threaded hole, the positioning seat and the positioning part are opposite. At this time, the positioning screw is screwed in so that the positioning part is inserted into the positioning seat to fix the second rotating plate. The spare tire mounting seat is fixed on the surface of the second rotating plate near the lower part.

4. The lightweight spare tire bracket according to claim 3, characterized in that: The spare tire mounting bracket includes a mounting base and a fixed shaft screw. The mounting base is fixed to the second rotating plate via a flange. A second threaded hole is provided at the axial center of the end of the mounting base away from the second rotating plate. The fixed shaft screw is screwed into the second threaded hole. A baffle is fixedly provided on the fixed shaft screw. A nut is threaded onto the fixed shaft screw. A tapered vibration damping block is sleeved on the fixed shaft screw. The vibration damping block is sandwiched between the baffle and the nut. The fixed shaft screw passes through the fixed hub center hole, and a portion of the vibration damping block is inserted into the hub center hole.

5. The lightweight spare tire bracket according to claim 4, characterized in that: The outer wall of the fixed-axis screw has multiple force-bearing holes arranged in a ring near the outer end.

6. The lightweight spare tire bracket according to claim 5, characterized in that: Multiple vibration damping pads made of elastic rubber are embedded at the end face of the mounting base, and the vibration damping pads act on the inner end face of the wheel hub.

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