Commercial vehicle spare tire up-down regulator assembly

Abstract

The utility model relates to a commercial vehicle spare tire up-down regulator assembly, which belongs to the technical field of automobile accessories and comprises a transmission box, mounting side plates are fixedly mounted on two sides of the transmission box, spare tire beams are bolted on two sides of each mounting side plate through bolts and nuts, a cross hanger plate is mounted at the bottom of the transmission box through a sling chain, and the cross hanger plate is connected with the spare tire beams through bolts and nuts. The transmission box is in an inverted-T shape, the two ends of the transmission box are bent to form right angles, and the sides, away from each other, of the two spare tire beams are arranged to be of a flanging structure. According to the spare tire lifter assembly of the commercial vehicle, the transmission box is arranged to be in the inverted-T shape, the needed strength is met, the weight of the transmission box is reduced, the manufacturing cost is reduced, the spare tire beam is arranged to be of the flanging structure, the strength of parts is improved, one right-angle side of the spare tire beam is designed to be of the trapezoidal structure, and the weight of the spare tire beam is reduced; meanwhile, the requirement for the height of a crank hole is met, the crossed hanging plate is arranged to be of a flanging structure, the strength of the crossed hanging plate is improved, and the overall weight is reduced while the strength is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a spare tire lift assembly for commercial vehicles. Background Technology

[0002] Commercial vehicles are automobiles used to transport people and goods. Based on their purpose, commercial vehicles are divided into three main categories: cargo vehicles, passenger vehicles, and special-purpose vehicles, including mini-trucks, light trucks, medium trucks, heavy trucks, minibuses, light buses, medium buses, and large buses. A spare tire is an important component of vehicle safety, used to replace a damaged tire in an emergency. Types of spare tires include full-size spare tires, which have the same specifications as the original four tires and can serve as long-term replacements; non-full-size spare tires, which have narrower tire widths or smaller rim sizes and usually have speed limits; and run-flat spare tires, also known as "air-proof tires," which can maintain their driving profile after a puncture and do not require a spare tire.

[0003] Large commercial vehicles have larger tires and are heavier, requiring a spare tire lifter when carried on the vehicle. A spare tire lifter is a device used in automobiles, typically installed at the rear of the vehicle, to store a spare tire. Some models use steel cables as the drive mechanism, suitable for some light trucks or small vehicles, while others use chains, suitable for heavy trucks or large vehicles, as chains are more durable and can withstand greater weight.

[0004] However, common commercial vehicle spare tire lift assemblies need to bear a large weight, which requires the materials used to be of high strength. As a result, most of them are made of cast iron. Cast iron is heavy, costly, and increases the load on the vehicle. In view of this, this application proposes a commercial vehicle spare tire lift assembly. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a commercial vehicle spare tire lift assembly that offers advantages such as ensuring strength while reducing overall weight. It solves the problem that common commercial vehicle spare tire lift assemblies need to bear a large weight, requiring materials with sufficiently high strength, which often results in the use of cast iron parts. Cast iron parts are heavy, costly, and increase the vehicle's load.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a commercial vehicle spare tire lift assembly, including a transmission box, on both sides of the transmission box are fixedly installed with mounting side plates, and on both sides of the mounting side plates are spare tire beams bolted to them by bolts and nuts, and the bottom of the transmission box is equipped with cross hanging plates by hanging chains;

[0007] The transmission box is convex in shape, with both ends bent at right angles. The two spare tire beams are set with a flange structure on the side away from each other, and a trapezoidal structure on the side close to each other. The side of the cross hanging plate is a downward flange structure.

[0008] Furthermore, mounting holes are provided at both ends of the spare tire beam, and a through plate is fixedly installed at the bottom end of the suspension chain, which slides through the cross suspension plate.

[0009] Furthermore, a limiting plate is slidably mounted on the surface of the through plate, and a compression spring passes through the surface of the through plate.

[0010] Furthermore, the compression spring is located between the cross plate and the limiting plate, and a limiting pin is transmitted through one side of the plate, with the limiting pin located below the limiting plate.

[0011] Furthermore, locking bolts are installed at the four ends of the bottom of the cross-shaped hanging plate. The locking bolts can be moved through the spare tire beam, and locking nuts are installed on the threads of the locking bolts. The locking nuts are located at the top of the spare tire beam.

[0012] Furthermore, a rotating shaft is rotatably mounted between the two mounting side plates, a sprocket is fixedly mounted on the surface of the rotating shaft, the top end of the hanging chain is fixedly mounted on the sprocket, and a limit groove is fixedly mounted on the inner side wall of the transmission box.

[0013] Furthermore, both ends of the rotating shaft extend to the outside of the mounting side plate. One end of the rotating shaft is provided with a pin, and the other end of the rotating shaft is fixedly installed with a control end block. A crank hole is opened on one side of the control end block, and the crank hole is located above the spare tire beam.

[0014] Compared with the prior art, this utility model provides a spare tire lift assembly for commercial vehicles, which has the following beneficial effects:

[0015] This commercial vehicle spare tire lift assembly addresses several issues. By designing the transmission box in a convex shape, it achieves the required strength while reducing its weight and manufacturing costs. The spare tire beam features a flanged structure, increasing component strength. One right-angled side of the spare tire beam is designed as a trapezoidal structure, reducing its weight while still meeting the crank handle hole height requirements. Furthermore, the cross-mounted plates are also flanged, enhancing their strength. This comprehensive approach solves the problem of common commercial vehicle spare tire lift assemblies requiring high-strength materials to support significant weight, often resulting in the use of cast iron components. Cast iron components are heavy, costly, and increase the vehicle's load. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a front view of the structure of this utility model;

[0018] Figure 3 This is a side view of the structure of this utility model;

[0019] Figure 4 This is a top view of the structure of this utility model;

[0020] Figure 5 This is a three-dimensional cross-sectional view of the transmission box of this utility model.

[0021] In the diagram: 1. Transmission box; 2. Mounting side plate; 3. Spare tire beam; 31. Mounting hole; 4. Lifting chain; 5. Cross hanging plate; 6. Through plate; 7. Limiting plate; 8. Compression spring; 9. Limiting pin; 10. Locking bolt; 11. Locking nut; 12. Rotating shaft; 13. Sprocket; 14. Limiting groove; 15. Pin; 16. Control end block; 17. Crank handle hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 4 A spare tire lifter assembly for commercial vehicles includes a transmission box 1, with mounting side plates 2 fixedly installed on both sides of the transmission box 1. Spare tire beams 3 are bolted to both sides of the mounting side plates 2 by bolts and nuts. Cross hanging plates 5 are installed at the bottom of the transmission box 1 by a hanging chain 4.

[0024] Among them, the transmission box 1 is convex in shape, and the two ends of the transmission box 1 are bent into right angles, which not only meets the required strength, but also reduces the weight of the transmission box 1 and reduces manufacturing costs. The side of the two spare tire beams 3 that are far apart from each other is set as a flange structure to improve the strength of the spare tire beams 3. The side of the two spare tire beams 3 that are close to each other is a trapezoidal structure. The side of the cross hanging plate 5 is a downward flange structure to improve the strength of the cross hanging plate 5.

[0025] Secondly, the spare tire beam 3 has mounting holes 31 at both ends, and the bottom end of the hanging chain 4 is fixedly installed with a through plate 6, which slides through the cross hanging plate 5.

[0026] Meanwhile, a limit plate 7 is slidably installed on the surface of the through plate 6, and a compression spring 8 is inserted through the surface of the through plate 6.

[0027] Among them, the compression spring 8 is located between the cross hanging plate 5 and the limiting plate 7, and the limiting pin 9 is transmitted through one side of the through plate 6. The limiting pin 9 is located below the limiting plate 7.

[0028] Secondly, locking bolts 10 are installed at the four ends of the bottom of the cross-mounted plate 5. The locking bolts 10 move through the spare tire beam 3. Locking nuts 11 are installed on the threads of the locking bolts 10. The locking nuts 11 are located at the top of the spare tire beam 3. Tightening the locking nuts 11 will bring the cross-mounted plate 5, the wheel rim and the spare tire beam 3 into place, preventing collisions and abnormal noises during driving.

[0029] Please see Figure 5 A rotating shaft 12 is rotatably mounted between the two mounting side plates 2. A sprocket 13 is fixedly mounted on the surface of the rotating shaft 12. The top of the hanging chain 4 is fixedly mounted on the sprocket 13. A limit groove 14 is fixedly mounted on the inner side wall of the transmission box 1.

[0030] The rotating shaft 12 extends to the outside of the mounting side plate 2 at both ends. A pin 15 passes through one end of the rotating shaft 12, and a control end block 16 is fixedly installed at the other end of the rotating shaft 12. A crank hole 17 is opened on one side of the control end block 16, and the crank hole 17 is located above the spare tire beam 3. The side of the two spare tire beams 3 that is close to each other has a trapezoidal structure that is adapted to the control end block 16 and meets the height requirements of the crank hole 17.

[0031] In this embodiment, by setting the transmission box 1 to a convex shape, the required strength is met while reducing the weight of the transmission box 1 and manufacturing costs. By setting the spare tire beam 3 to a flanged structure, the strength of the parts is increased. One right-angled side of the spare tire beam 3 is designed as a trapezoidal structure to reduce the weight of the spare tire beam 3, while still meeting the height requirements of the crank handle hole 17. By setting the cross suspension plate 5 to a flanged structure, the strength of the cross suspension plate 5 is improved. Thus, this device reduces the overall weight and the load on the vehicle while ensuring strength.

[0032] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A commercial vehicle spare tire lifter assembly comprising a transmission box (1), characterized in that: Both sides of the transmission box (1) are fixedly installed with installation side plates (2), both sides of the installation side plates (2) are bolted with spare tire beams (3) through bolts and nuts, and the bottom of the transmission box (1) is installed with a cross hanging plate (5) through a lifting chain (4). The transmission box (1) is in the shape of a Chinese character, both ends of the transmission box (1) are bent into right angles, one side of the two spare tire beams (3) away from each other is provided with a flange structure, one side of the two spare tire beams (3) close to each other is in a trapezoidal structure, and the side edge of the cross hanging plate (5) is a downward flange structure.

2. A commercial vehicle spare tire lift assembly as defined in claim 1, wherein: Both ends of the spare tire beam (3) are provided with mounting holes (31), the bottom end of the lifting chain (4) is fixedly installed with a penetrating plate (6), and the penetrating plate (6) slidably penetrates the cross hanging plate (5).

3. A commercial vehicle spare tire lift assembly as defined in claim 2, wherein: The surface of the penetrating plate (6) is slidably installed with a limiting plate (7), and the penetrating plate (6) is provided with a compression spring (8).

4. A commercial vehicle spare tire lift assembly as defined in claim 3, wherein: The compression spring (8) is located between the cross hanging plate (5) and the limiting plate (7), one side of the penetrating plate (6) is provided with a limiting pin (9), and the limiting pin (9) is located below the limiting plate (7).

5. A commercial vehicle spare tire lift assembly as defined in claim 1, wherein: The bottom of the cross hanging plate (5) is provided with locking bolts (10) at four ends, the locking bolts (10) movably penetrate the spare tire beam (3), the surface of the locking bolt (10) is threadedly installed with a locking nut (11), and the locking nut (11) is located at the top of the spare tire beam (3).

6. A commercial vehicle spare tire lift assembly as defined in claim 1, wherein: The two installation side plates (2) are rotatably installed with a rotating shaft (12), the surface of the rotating shaft (12) is fixedly installed with a chain wheel (13), the top end of the lifting chain (4) is fixedly installed on the chain wheel (13), and the inner side wall of the transmission box (1) is fixedly installed with a limiting groove (14).

7. A commercial vehicle spare tire lift assembly as defined in claim 6, wherein: Both ends of the rotating shaft (12) extend to the outside of the installation side plate (2), one end of the rotating shaft (12) is provided with a latch (15), and the other end of the rotating shaft (12) is fixedly installed with a control end block (16), one side of the control end block (16) is provided with a crank hole (17), and the crank hole (17) is located above the spare tire beam (3).

Images