Cage type spare tire rack and semi-trailer

Abstract

The utility model provides a cage-type spare tire rack and a semi-trailer, comprising a bent tube frame, a pair of bent hook bolts, a sleeve nut assembly, a spare tire rack locking rod, a longitudinal beam for connecting the top of the bent tube frame, and a cross beam for connecting the bottom of the bent tube frame; the cross beam, the bent tube frame and the longitudinal beam together constitute an installation space for storing the spare tire, the bottom of the pair of bent hook bolts passes through the spare tire steel ring and is hooked on the cross beam, and the sleeve nut assembly is threadedly connected to the top of the bent hook bolts. The cage-type spare tire rack can not only ensure a firm connection, but also disperse the weight of the spare tire, thereby reducing the impact of the spare tire weight on the trailer beam when the road is bumpy.

Description

Technical Field

[0001] The utility model relates to the field of spare tire racks, in particular to a cage-type spare tire rack and a semi-trailer. Background Art

[0002] At present, semi-trailer vehicles mainly use side spare tire racks and center spare tire racks, and the spare tire is fixed under or on the side of the beam by hoisting. When encountering complex road conditions, severe driving bumps or heavy tires such as large single tires, this hoisting method cannot well meet the safety and stability requirements of the spare tire rack. At the same time, the traditional spare tire rack uses a worm gear transmission and slowly lifts or lowers the spare tire through the spare tire crank, which is costly, has a long operation process and low efficiency.

[0003] In order to simplify the steps of loading and unloading spare tires and improve loading and unloading efficiency, the utility model with authorization announcement number CN215097890U discloses a flip cage spare tire rack for semi-trailers, including a semi-trailer box body, a fixing frame is fixedly connected to the outer surface of the lower end of the semi-trailer box body near the left side, a movable groove is provided on the outer surface of the lower end of the fixing frame, a connecting rod is fixedly connected to the inner surface of the movable groove near the rear end, a bearing is fixedly connected to the outer surface of the connecting rod, and a rotating rod is fixedly connected to the outer surface of the bearing. The device structure is not only simple in structure and easy to operate, which is conducive to the removal and installation of spare tires, but also convenient for the transportation of spare tires, which greatly saves the time of replacing spare tires and is more labor-saving. However, the flip cage spare tire rack for semi-trailers relies on flipping to load and unload spare tires, and the structure is complicated. When the spare tire is installed on the flip cage spare tire rack, it is not effectively fixed, and the problem of the spare tire colliding with the trailer beam caused by road bumps still occurs. Utility Model Content

[0004] In order to ensure a firm connection and to disperse the weight of the spare tire, and reduce the impact of the spare tire weight on the trailer beam when the road is bumpy, the technical solution adopted by the utility model is: a cage-type spare tire rack, including a bent pipe frame, a pair of bent hook bolts, a sleeve nut assembly, a spare tire rack locking rod, a longitudinal beam for connecting the top of the bent pipe frame, and a cross beam for connecting the bottom of the bent pipe frame;

[0005] The crossbeam, the bent tube frame and the longitudinal beam together form an installation space for storing the spare tire. The bottom of a pair of hook bolts passes through the spare tire steel ring and is hooked on the crossbeam, and the sleeve nut assembly is threadedly connected to the top of the hook bolt.

[0006] Based on the above, in order to increase the number of spare tires that can be installed, the cage-type spare tire rack includes a pair of longitudinal beams and a pair of bent tube frames, and the pair of bent tube frames are respectively connected to the two ends of the cross beam to form two installation spaces for storing spare tires.

[0007] Based on the above, in order to position the spare tire and facilitate installation, a baffle is detachably provided at the inner end of the cross beam.

[0008] Based on the above, in order to facilitate hooking the hook bolt on the beam, a hook bolt mounting hole group for the hook bolt to be hooked is opened on the beam, a reinforcing round steel is arranged at the bottom of the hook bolt mounting hole group, and a baffle mounting hole is opened in the middle of the beam.

[0009] Based on the above, in order to install and disassemble the sleeve nut assembly, a spare tire rack locking rod is detachably installed on the top of the sleeve nut assembly. The spare tire rack locking rod is rotated to drive the sleeve nut assembly to rotate, so that it can be disengaged or assembled from the top of the hook bolt.

[0010] Based on the above, in order to facilitate installation and fix the hook bolt, the sleeve nut assembly includes a stud nut and a sleeve, the sleeve is fixed on the top of the stud nut, and a sleeve loading and unloading hole is opened on the sleeve.

[0011] Based on the above, in order to facilitate connection and increase structural strength, the bent tube frame includes an integrally arranged bottom bearing rod, a pair of vertical rod portions and a pair of longitudinal beam connecting portions, wherein the vertical rod portions are vertically arranged to the bottom bearing rod, and the longitudinal beam connecting portions are vertically arranged to the vertical rod portions.

[0012] Based on the above, the hook bolt includes a hook section at the bottom and a threaded section at the top, and the threaded section is threadedly connected to the sleeve nut assembly.

[0013] Based on the above, in order to prevent the spare tire rack lock rod from moving, a lock rod hook portion is provided at one end of the spare tire rack lock rod, and a limiting hole is provided on the lock rod hook portion.

[0014] The utility model provides a semitrailer, which is equipped with the cage-type spare tire rack.

[0015] The utility model has substantial features and progress compared with the prior art. Specifically, the cage-type spare tire rack provided by the utility model adopts two cross beams to carry the spare tire, and uses a bent pipe frame to connect the longitudinal beam and the cross beam to form the main structure of the cage-type spare tire rack, and then the spare tire is fixed by a bent hook bolt, a sleeve nut assembly and a matching nut locking rod, which not only ensures a firm connection, but also disperses the weight of the spare tire, thereby reducing the impact of the spare tire weight on the trailer beam when the road is bumpy.

[0016] Furthermore, the crossbeam is made by bending steel plate gas-cut parts, which has low processing cost. The bent pipe frame is made of square tubes. The bent pipe frame and the longitudinal beam are connected with chassis fasteners, which avoids punching or welding of the longitudinal beam and ensures the strength of the longitudinal beam. At the same time, the spare tire rack can be adjusted front and back within a certain range.

[0017] Furthermore, by providing a limit baffle, the spare tire installed on the cage-type spare tire rack can be additionally limited and fixed, further enhancing the stability and firmness of the spare tire after installation.

[0018] Furthermore, the spare tire is fixed on the cross beam by using a hook bolt and a sleeve nut assembly, which is easy to disassemble. Therefore, the cage-type spare tire rack can cope with the requirements of complex road conditions or large single tires and some special circumstances for the installation and fixation of the spare tire on the cage-type spare tire rack. It has strong load-bearing capacity, simple operation, and convenient and quick spare tire installation. After the spare tire is installed, it is stable and firm, and maintenance is simple. It can not only ensure a firm connection, but also disperse the weight of the spare tire, reducing the impact of the spare tire weight on the trailer beam when the road is bumpy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall installation structure of the cage type spare tire rack provided by the utility model.

[0020] Figure 2 It is a schematic diagram of the overall structure of the cage-type spare tire rack provided by the utility model from the top perspective.

[0021] Figure 3 and Figure 4 The utility model is a schematic diagram of the side structure of the cage type spare tire rack.

[0022] Figure 5 The utility model discloses a schematic diagram of a spare tire rack locking rod structure in a cage type spare tire rack.

[0023] Figure 6 The utility model is a schematic diagram of the top structure of the connecting beam in the cage type spare tire rack.

[0024] Figure 7 The utility model is a schematic diagram of the side structure of a connecting crossbeam in a cage-type spare tire rack.

[0025] Figure 8 The utility model is a schematic diagram of the structure of a sleeve nut assembly in a cage type spare tire rack.

[0026] Fig. 9 The utility model is a schematic diagram of a bent pipe frame structure in a cage type spare tire rack.

[0027] Fig.10 The utility model is a schematic diagram of the structure of the bent hook bolt in the cage type spare tire rack.

[0028] In the figure: 1. longitudinal beam; 2. pressure plate; 3. bent pipe frame; 4. sleeve nut assembly; 5. hook bolt; 6. pressure plate bolt; 7. spare tire; 8. cross beam; 9. reinforcing round steel; 10. baffle; 11. spare tire frame locking rod; 12. spare tire steel ring; 13. locking rod hook part; 14. limiting hole; 15. hook bolt mounting hole group; 16. baffle mounting hole; 17. cross beam bending part; 18. sleeve; 19. stud nut; 20. sleeve loading and unloading hole; 21. longitudinal beam connecting part; 22. bottom bearing rod; 23. vertical rod part; 24. hook section; 25. threaded section. DETAILED DESCRIPTION

[0029] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0030] Example 1

[0031] This embodiment provides a cage-type spare tire rack, such as Figure 1 , Figure 2 , Figure 3 As shown in FIG. 4 , it includes a bent tube frame 3 , a pair of hook bolts 5 , a sleeve nut assembly 4 , a spare tire rack locking rod 11 , a longitudinal beam 1 for connecting the top of the bent tube frame 3 , and a cross beam 8 for connecting the bottom of the bent tube frame 3 .

[0032] The cross beam 8, the bent tube frame 3 and the longitudinal beam 1 together form an installation space for storing the spare tire 7. The bottom of a pair of hook bolts 5 passes through the spare tire steel ring 12 and is hooked on the cross beam 8, and the sleeve nut assembly 4 is threadedly connected to the top of the hook bolt 5. The bent tube frame 3 and the longitudinal beam 1 are connected by the pressure plate bolt 6 and the pressure plate 2.

[0033] In this embodiment, Figure 1 and Figure 2 As shown, in order to increase the number of spare tires installed, the cage-type spare tire rack includes a pair of longitudinal beams 1 and a pair of curved tube frames 3. The pair of curved tube frames 3 are respectively connected to the two ends of the cross beam 8 to form two installation spaces for storing spare tires 7.

[0034] In order to position the spare tire and facilitate installation, a baffle 10 is detachably provided at the inner end of the crossbeam 8. In order to install and remove the sleeve nut assembly 4, a spare tire rack locking rod 11 is detachably installed on the top of the sleeve nut assembly 4. The sleeve nut assembly is rotated by rotating the spare tire rack locking rod to disengage or assemble it from the top of the hook bolt.

[0035] like Figure 8 As shown, in order to facilitate installation and fix the hook bolt, the sleeve nut assembly 4 includes a stud nut 19 and a sleeve 18. The sleeve 18 is fixed on the top of the stud nut 19, and a sleeve loading and unloading hole 20 is opened on the sleeve 18.

[0036] like Fig.10 As shown, the hook bolt 5 includes a hook section 24 at the bottom and a threaded section 25 at the top, and the threaded section 25 is threadedly connected to the sleeve nut assembly 4.

[0037] Example 2

[0038] This embodiment provides a cage-type spare tire rack, which is different from Embodiment 1 in that: Figure 5 As shown, in order to prevent the spare tire rack lock rod 11 from moving, a lock rod hook portion 13 is provided at one end of the spare tire rack lock rod 11 , and a limiting hole 14 is provided on the lock rod hook portion 13 .

[0039] Example 3

[0040] This embodiment provides a cage-type spare tire rack, which is different from Embodiment 1 in that: Figure 6 and Figure 7 As shown, in order to facilitate hooking the hook bolt 5 on the cross beam 8, the cross beam 8 is provided with a hook bolt mounting hole group 15 for hooking the hook bolt 5, a reinforcing round steel 9 is provided at the bottom of the hook bolt mounting hole group 15, and a baffle mounting hole 16 is provided in the middle of the cross beam 8. The cross beam 8 is provided with cross beam bending parts 17 on both sides.

[0041] Example 4

[0042] This embodiment provides a cage-type spare tire rack, which is different from Embodiment 1 in that: Fig. 9 As shown, in order to facilitate connection and increase structural strength, the bent tube frame 3 includes an integrally arranged bottom bearing rod 22, a pair of vertical rod portions 23 and a pair of longitudinal beam connecting portions 21. The vertical rod portions 23 are arranged perpendicularly to the bottom bearing rod 22, and the longitudinal beam connecting portions 21 are arranged perpendicularly to the vertical rod portions 23.

[0043] Example 5

[0044] This embodiment provides a semi-trailer, which is equipped with the cage-type spare tire rack described in any one of embodiments 1 to 4.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A cage-type spare tire rack, characterized in that: It includes a bent tube frame, a pair of hook bolts, a sleeve nut assembly, a spare tire rack locking rod, a longitudinal beam for connecting the top of the bent tube frame, and a cross beam for connecting the bottom of the bent tube frame; The crossbeam, the bent tube frame and the longitudinal beam together form an installation space for storing the spare tire. The bottom of a pair of hook bolts passes through the spare tire steel ring and is hooked on the crossbeam, and the sleeve nut assembly is threadedly connected to the top of the hook bolt.

2. The cage type spare tire rack according to claim 1, characterized in that: It comprises a pair of longitudinal beams and a pair of curved tube frames, wherein the pair of curved tube frames are respectively connected to two ends of the cross beam to form two installation spaces for storing spare tires.

3. The cage type spare tire rack according to claim 1, characterized in that: The inner end of the crossbeam is detachably provided with a baffle.

4. The cage type spare tire rack according to claim 1, 2 or 3, characterized in that: A hook bolt mounting hole group for the hook bolts to be hooked is provided on the crossbeam, a reinforcing round steel is arranged at the bottom of the hook bolt mounting hole group, and a baffle mounting hole is provided in the middle of the crossbeam.

5. The cage type spare tire rack according to claim 1, characterized in that: A spare tire rack locking rod is detachably mounted on the top of the sleeve nut assembly.

6. The cage type spare tire rack according to claim 1, 2, 3 or 5, characterized in that: The sleeve nut assembly comprises a stud nut and a sleeve, wherein the sleeve is fixed on the top of the stud nut and a sleeve loading and unloading hole is provided on the sleeve.

7. The cage type spare tire rack according to claim 6, characterized in that: The bent tube frame comprises an integrally arranged bottom bearing rod, a pair of vertical rod portions and a pair of longitudinal beam connecting portions, wherein the vertical rod portions are arranged perpendicularly to the bottom bearing rod, and the longitudinal beam connecting portions are arranged perpendicularly to the vertical rod portions.

8. The cage type spare tire rack according to claim 1, characterized in that: The hook bolt comprises a hook section at the bottom and a threaded section at the top, and the threaded section is threadedly connected to the sleeve nut assembly.

9. The cage type spare tire rack according to claim 1 or 2 or 3 or 5 or 8, characterized in that: A locking rod hook portion is provided at one end of the spare tire rack locking rod, and a limiting hole is provided on the locking rod hook portion.

10. A semitrailer, characterized in that: The semitrailer is equipped with a cage-type spare tire rack as described in any one of claims 1 to 9.

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