A spare tire fixing mechanism for a trunk of an automobile

Abstract

The utility model discloses a spare tire fixing mechanism of automobile trunk, including the base for installing in the automobile trunk, be equipped with the protection cover on the base, rotatory connection has the sun gear between the base and the protection cover, still be equipped with the control assembly for the manual control center gear rotation between the base and the protection cover, be equipped with a plurality of telescopic arm assemblies that can move on the base between the base and the sun gear, the end of telescopic arm assembly is equipped with arc jaw. The utility model discloses a spare tire fixing mechanism of automobile trunk, it can adjust quickly, has the advantage that adaptability is strong and steady.

Description

Technical Field

[0001] This utility model relates to the technical field of spare tire fixing devices, specifically a spare tire fixing mechanism for a car trunk. Background Technology

[0002] Traditional methods of securing spare tires in car trunks often use simple straps, bolts, or mounting brackets, which have the following drawbacks:

[0003] 1. Cumbersome operation: Multiple locking points need to be manually adjusted, and installing / removing the spare tire is time-consuming and laborious.

[0004] 2. Poor compatibility: The fixing mechanism cannot adapt to spare tires of different sizes, which can easily lead to loosening or abnormal noise.

[0005] 3. Insufficient stability: The spare tire is prone to shifting when the vehicle is bumpy, posing a safety hazard. Utility Model Content

[0006] To solve the above problems, this utility model provides a spare tire fixing mechanism for automobile trunks, which can be quickly adjusted and has the advantages of being highly adaptable and stable.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a spare tire fixing mechanism for a car trunk, including a base for installation in the trunk of a car, a protective cover on the base, a central gear rotatably connected between the base and the protective cover, a control component for manually operating the rotation of the central gear between the base and the protective cover, and a plurality of telescopic arm assemblies that can move on the base between the central gear and the base, with arc-shaped claws at the ends of the telescopic arm assemblies.

[0008] As an improvement, the base includes a three-end bracket, each of the three ends of which is provided with a sliding groove. The telescopic arm assembly includes a slider that is slidably connected to the sliding groove, and a support arm is provided on the slider. The support arm is connected to an arc-shaped claw.

[0009] As an improvement, an adjustable telescopic rod is provided between the support arm and the arc-shaped claw.

[0010] As an improvement, the end of the support arm away from the arc-shaped claw is provided with a sliding column, and a rotating column is provided at the center of the three-end bracket. The rotating column is rotatably connected to the central gear. The central gear includes a central gear body rotatably connected to the rotating column. The central gear body is provided with three evenly distributed arc-shaped sliding grooves, and the arc-shaped sliding grooves are slidably connected to the sliding column.

[0011] As an improvement, a boss is provided on one side of one end of the three-end bracket, and the control component includes a rotating shaft rotatably mounted on the boss, a drive gear meshing with the central gear is fixedly mounted on the rotating shaft, and a rotating handle with a protective cover protruding from the top of the rotating shaft.

[0012] As an improvement, the outer surface of the arc-shaped claw is provided with an anti-slip layer.

[0013] The advantages of this utility model compared with the prior art are as follows:

[0014] 1. One-button synchronous adjustment: By controlling the central gear driven by the control component, the three telescopic arm components move synchronously, realizing the rapid clamping or release of the spare tire, significantly improving operating efficiency;

[0015] 2. High adaptability: The adjustable telescopic rod at the end of the telescopic arm assembly supports fine adjustment of the arc of the arc-shaped claw to adapt to spare tires of different sizes. The anti-slip layer enhances friction and prevents the spare tire from slipping.

[0016] 3. Stable and reliable structure: The three-end bracket and the three-point distributed arc-shaped claws form a uniform force, and the sliding connection between the slider and the slide groove ensures the stability of the telescopic arm's movement trajectory and avoids the spare tire shaking. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a spare tire fixing mechanism in a car trunk, according to this utility model.

[0018] Figure 2 This is an exploded view of the structure of a spare tire fixing mechanism in the trunk of a car according to the present invention.

[0019] Figure 3 This is a schematic diagram of the base of a spare tire fixing mechanism in a car trunk, according to the present invention.

[0020] Figure 4 This is a schematic diagram of the central gear of a spare tire fixing mechanism in a car trunk, according to this utility model.

[0021] Figure 5 This is a schematic diagram of the telescopic arm assembly of a spare tire fixing mechanism in a car trunk according to the present invention.

[0022] Figure 6 This is a schematic diagram of the internal assembly of a spare tire fixing mechanism in a car trunk according to the present invention.

[0023] As shown in the figure: 1. Base; 11. Three-end bracket; 12. Slide groove; 13. Rotating column; 14. Boss; 2. Central gear; 21. Central gear body; 22. Arc-shaped slide groove; 3. Protective cover; 4. Telescopic arm assembly; 41. Slider; 42. Support arm; 43. Slide column; 44. Adjustable telescopic rod; 5. Arc-shaped claw; 51. Anti-slip layer; 6. Control component; 61. Rotating shaft; 62. Rotating handle; 63. Drive gear. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] Combined with appendix Figure 1 Appendix Figure 2 and attached Figure 5 :

[0026] A spare tire fixing mechanism for a car trunk includes a base 1 for installation in the car trunk, a protective cover 3 on the base 1, a central gear 2 rotatably connected between the base 1 and the protective cover 3, a control component 6 for manually rotating the central gear 2 between the base 1 and the protective cover 3, and a plurality of telescopic arm assemblies 4 movable on the base 1 between the central gear 2 and the base 1. The ends of the telescopic arm assemblies 4 are provided with arc-shaped claws 5, and the outer surface of the arc-shaped claws 5 is provided with an anti-slip layer 51.

[0027] With the above structure, when the user operates the control component 6, the central gear 2 synchronously drives the three telescopic arm components 4 to move radially, so that the arc-shaped pawl 5 can quickly clamp or release the spare tire, realizing one-button adjustment; at the same time, the anti-slip layer 51 increases the friction, prevents the spare tire from shifting during driving, and improves stability.

[0028] Combined with appendix Figure 3 Appendix Figure 4 and attached Figure 5 :

[0029] The base 1 includes a three-end bracket 11, and each of the three ends of the three-end bracket 11 is provided with a sliding groove 12. The telescopic arm assembly 4 includes a slider 41 that is slidably connected to the sliding groove 12. A support arm 42 is provided on the slider 41. The support arm 42 is connected to the arc-shaped claw 5. An adjustable telescopic rod 44 is provided between the support arm 42 and the arc-shaped claw 5.

[0030] The support arm 42 is provided with a sliding column 43 at the end away from the arc-shaped claw 5. The three-end bracket 11 is provided with a rotating column 13 at the center. The rotating column 13 is rotatably connected to the central gear 2. The central gear 2 includes a central gear body 21 rotatably connected to the rotating column 13. The central gear body 21 is provided with three evenly distributed arc-shaped sliding grooves 22. The arc-shaped sliding grooves 22 are slidably connected to the sliding column 43.

[0031] Through the above structure, the rotation of the central gear body 21 drives the slider 41 to move along the slide groove 12 through the sliding engagement of the arc-shaped slide groove 22 and the slide column 43, thereby realizing the synchronous extension and retraction of the telescopic arm assembly 4; the adjustable telescopic rod 44 supports the fine adjustment of the arc of the arc-shaped claw 5, adapts to spare tires of different sizes, and ensures compatibility and clamping uniformity.

[0032] Combined with appendix Figure 2 Appendix Figure 3 Appendix Figure 5 and attached Figure 6 :

[0033] The three-end bracket 11 has a boss 14 on one side of one end. The control component 6 includes a rotating shaft 61 rotatably mounted on the boss 14. A drive gear 63 that meshes with the central gear 2 is fixedly mounted on the rotating shaft 61. A rotating handle 62 that exposes the protective cover 3 is provided on the top of the rotating shaft 61.

[0034] With the above structure, when the rotary handle 62 is rotated, the rotating shaft 61 drives the drive gear 63 to rotate, and the drive gear 63 meshes with the center gear 2, thereby manually operating the rotation of the center gear 2, providing convenient input force, simplifying the operation process, and improving efficiency.

[0035] In practical implementation, when the spare tire needs to be secured, the user rotates the rotating handle 62, causing the rotating shaft 61 and drive gear 63 to rotate. The drive gear 63 meshes with the central gear body 21, causing the central gear body 21 to rotate around the rotating column 13. At this time, the arc-shaped sliding groove 22 on the central gear body 21 pushes the three sets of sliding columns 43 to move radially in sync, causing the slider 41 to slide linearly along the sliding groove 12 of the base 1. The three sets of telescopic arm assemblies 4 then retract or extend synchronously, causing the arc-shaped claws at the ends to clamp or release the spare tire concentrically.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A spare tire fixing mechanism for a car trunk, comprising a base (1) for installation in the car trunk, a protective cover (3) provided on the base (1), and a central gear (2) rotatably connected between the base (1) and the protective cover (3), characterized in that: A control component (6) for manually manipulating the rotation of the central gear (2) is provided between the base (1) and the protective cover (3). Multiple telescopic arm assemblies (4) that can move on the base (1) are provided between the central gear (2) and the base (1). The ends of the telescopic arm assemblies (4) are provided with arc-shaped claws (5).

2. The spare tire fixing mechanism in a car trunk according to claim 1, characterized in that: The base (1) includes a three-end bracket (11), and each of the three ends of the three-end bracket (11) is provided with a sliding groove (12). The telescopic arm assembly (4) includes a slider (41) that is slidably connected to the sliding groove (12). A support arm (42) is provided on the slider (41), and the support arm (42) is connected to the arc-shaped claw (5).

3. The spare tire fixing mechanism in a car trunk according to claim 2, characterized in that: An adjustable telescopic rod (44) is provided between the support arm (42) and the arc-shaped claw (5).

4. The spare tire fixing mechanism in a car trunk according to claim 2, characterized in that: The support arm (42) has a sliding column (43) at one end away from the arc-shaped claw (5), and a rotating column (13) is provided at the center of the three-end bracket (11). The rotating column (13) is rotatably connected to the central gear (2). The central gear (2) includes a central gear body (21) rotatably connected to the rotating column (13). The central gear body (21) has three evenly distributed arc-shaped sliding grooves (22). The arc-shaped sliding grooves (22) are slidably connected to the sliding column (43).

5. A spare tire fixing mechanism for a car trunk according to claim 2, characterized in that: The three-end bracket (11) has a boss (14) on one side of one end. The control component (6) includes a rotating shaft (61) rotatably mounted on the boss (14). A drive gear (63) meshing with the central gear (2) is fixedly mounted on the rotating shaft (61). A rotating handle (62) with a protective cover (3) protruding from the top of the rotating shaft (61) is provided.

6. The spare tire fixing mechanism in a car trunk according to claim 1, characterized in that: The outer side of the arc-shaped claw (5) is provided with an anti-slip layer (51).

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