Shock absorption and noise reduction composite wheel set structure

Abstract

The utility model relates to the technical field of wheel sets, and discloses a shock absorption and noise reduction composite wheel set structure which comprises a base, a connecting seat is arranged below the base, a shock absorption mechanism is arranged between the connecting seat and the base, a mounting plate is fixedly connected to the bottom of the connecting seat, and composite wheel bodies are arranged on the two sides of the mounting plate respectively. The two composite wheel bodies are rotationally connected with the mounting plate through rotating shafts correspondingly, each composite wheel body is composed of an inner wheel body and an outer wheel body, the outer wheel body is arranged on the outer surface of the inner wheel body in a sleeving mode, and a fixing mechanism is arranged between the inner wheel body and the outer wheel body; vibration conducted to the base by the composite wheel body can be relieved through the arranged springs, vibration of the springs can be restrained through the arranged dampers, the composite wheel body is composed of the inner wheel body and the outer wheel body in a composite mode, when the outside of the composite wheel body is seriously abraded, the outer wheel body can be directly replaced, and the service life of the composite wheel body is prolonged. Therefore, the luggage case is more comfortable to use.

Description

Technical Field

[0001] This utility model relates to the field of wheel assembly technology, specifically to a shock-absorbing and noise-reducing composite wheel assembly structure. Background Technology

[0002] As an essential storage container for travelers, suitcases bring great convenience to people's travels. Suitcases are generally equipped with a wheel structure at the bottom, which makes it easy for people to pull or push the suitcase forward. However, the conventional wheel structure generally directly connects the rollers to the bracket, then the bracket is connected to the wheel seat, and then the wheel seat is fixedly screwed to the bottom of the suitcase. The drawback of this structure is that it cannot provide shock absorption for the suitcase.

[0003] According to Chinese patent document CN217227196U, a wheel assembly structure for shock absorption and noise reduction is disclosed, relating to the field of luggage wheel assembly technology. This solution includes a wheel seat, a seat rivet, an elastomer, a bracket, and a roller. The upper end of the bracket has an assembly groove, the elastomer is disposed at the bottom end of the assembly groove, the lower part of the seat rivet extends into the assembly groove and abuts against the elastomer, a retaining ring is fixedly disposed in the middle of the seat rivet, the upper part of the seat rivet is pivotally connected to the wheel seat, and the retaining ring abuts against the lower end of the wheel seat. The roller is pivotally connected to the bracket. Compared with the prior art, this utility model achieves the purpose of shock absorption and noise reduction for luggage.

[0004] However, the individual wheels in the aforementioned wheel sets are all one-piece designs. When the outer surface of the wheel experiences severe wear or localized damage after prolonged use, it can cause significant noise and discomfort when pushing the suitcase. In such cases, there is no solution other than replacing the wheel set or the suitcase. Therefore, a shock-absorbing and noise-reducing composite wheel set structure has been proposed. Utility Model Content

[0005] The purpose of this invention is to provide a shock-absorbing and noise-reducing composite wheel assembly structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shock-absorbing and noise-reducing composite wheel assembly structure, including a base, a connecting seat provided below the base, a shock-absorbing mechanism provided between the connecting seat and the base, a mounting plate fixedly connected to the bottom of the connecting seat, composite wheel bodies provided on both sides of the mounting plate, the two composite wheel bodies being rotatably connected to the mounting plate via rotating shafts, each composite wheel body consisting of an inner wheel body and an outer wheel body, the outer wheel body being sleeved on the outer surface of the inner wheel body, and a fixing mechanism provided between the inner wheel body and the outer wheel body.

[0007] As a further preferred embodiment of this technical solution, the fixing mechanism includes locking blocks and fixing screws. Multiple limiting grooves are formed on the outer wall of the inner wheel body, and multiple locking blocks are fixedly connected to the inner wall of the outer wheel body. Each locking block corresponds to one of the multiple limiting grooves. Multiple through holes are formed on the outer wall of the inner wheel body, distributed on the side walls of the multiple limiting grooves. Threaded holes are formed on the side walls of the multiple locking blocks, corresponding one-to-one with the multiple through holes. Fixing screws are slidably inserted into each of the multiple through holes, and the multiple fixing screws are threadedly engaged with the multiple threaded holes.

[0008] As a further preferred embodiment of this technical solution, the plurality of limiting grooves are arranged in a ring array.

[0009] As a further preferred embodiment of this technical solution, the damping mechanism includes a damper and a spring. A damper is fixedly installed between the upper end of the connecting seat and the bottom of the base. A spring is wound around the outer surface of the damper, and the two ends of the spring are fixedly connected to the connecting seat and the base, respectively.

[0010] As a further preferred embodiment of this technical solution, the base is provided with four fixing holes, which are distributed at the four corners of the base.

[0011] As a further preferred embodiment of this technical solution, baffles are fixedly connected to both sides of the lower end of the connecting seat.

[0012] As a further preferred embodiment of this technical solution, the shielding plate has an arc-shaped structure.

[0013] This utility model provides a shock-absorbing and noise-reducing composite wheel assembly structure, which has the following beneficial effects:

[0014] The utility model uses a spring to alleviate the vibration transmitted from the composite wheel to the base, and a damper to suppress the vibration of the spring itself. The composite wheel is composed of an inner wheel and an outer wheel. When the outer part of the composite wheel is severely worn, the outer wheel can be replaced directly, thus ensuring a more comfortable use of the suitcase. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a side view of the overall structure of this utility model;

[0017] Figure 3 This is a breakdown diagram of the overall structure of this utility model;

[0018] Figure 4 This is a schematic diagram showing the disassembled composite wheel body in this utility model;

[0019] In the diagram: 1. Base; 2. Composite wheel body; 3. Connecting seat; 4. Mounting plate; 5. Shaft; 6. Spring; 7. Damper; 8. Fixing hole; 9. Inner wheel body; 10. Outer wheel body; 11. Limiting groove; 12. Locking block; 13. Through hole; 14. Threaded hole; 15. Fixing screw; 16. Cover plate. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figures 1 to 4 As shown, in this embodiment, the shock-absorbing and noise-reducing composite wheel assembly structure includes a base 1, a connecting seat 3 is provided below the base 1, a shock-absorbing mechanism is provided between the connecting seat 3 and the base 1, a mounting plate 4 is fixedly connected to the bottom of the connecting seat 3, and composite wheel bodies 2 are respectively provided on both sides of the mounting plate 4. The two composite wheel bodies 2 are rotatably connected to the mounting plate 4 through a rotating shaft 5. The composite wheel body 2 is composed of an inner wheel body 9 and an outer wheel body 10. The outer wheel body 10 is sleeved on the outer surface of the inner wheel body 9, and a fixing mechanism is provided between the inner wheel body 9 and the outer wheel body 10.

[0022] The fixing mechanism includes a locking block 12 and a fixing screw 15. The outer wall of the inner wheel body 9 is provided with multiple limiting grooves 11 arranged in a ring array. Multiple locking blocks 12 are fixedly connected to the inner wall of the outer wheel body 10. Each locking block 12 corresponds to one of the multiple limiting grooves 11. Multiple through holes 13 are provided on the outer wall of the inner wheel body 9. The multiple through holes 13 are distributed on the side walls of the multiple limiting grooves 11. Threaded holes 14 are provided on the side walls of the multiple locking blocks 12. Each threaded hole 14 corresponds to one of the multiple through holes 13. Fixing screws 15 are slidably inserted into each of the multiple through holes 13. Each fixing screw 15 is threadedly engaged with each of the multiple threaded holes 14.

[0023] In use, the outer wheel body 10 is fitted over the inner wheel body 9, so that the locking block 12 on the outer wheel body 10 is engaged in the limiting groove 11 on the inner wheel body 9, thereby ensuring that the outer wheel body 10 will not rotate. At this time, the multiple through holes 13 on the inner wheel body 9 will be aligned with the multiple threaded holes 14 on the outer wheel body 10. The fixing screw 15 is rotated and inserted into the through holes 13 and the threaded holes 14, thereby fixing the outer wheel body 10 and the inner wheel body 9 together.

[0024] The damping mechanism includes a damper 7 and a spring 6. The damper 7 is fixedly installed between the upper end of the connecting seat 3 and the bottom of the base 1. The outer surface of the damper 7 is wrapped with a spring 6, and the two ends of the spring 6 are fixedly connected to the connecting seat 3 and the base 1 respectively.

[0025] The spring 6 can alleviate the vibration transmitted from the composite wheel 2 to the base 1, while the damper 7 can suppress the vibration of the spring 6 itself.

[0026] The base 1 has four fixing holes 8, which are located at the four corners of the base 1.

[0027] The wheelset can be installed on the bottom of the suitcase by using the external screws and fixing holes 8.

[0028] Among them, the lower ends of the connecting seat 3 are respectively fixedly connected to the two sides of the baffle plate 16, and the baffle plate 16 has an arc-shaped structure.

[0029] The baffle 16 prevents mud and water splashed up by the composite wheels 2 from contaminating the bottom of the suitcase.

[0030] This utility model provides a shock-absorbing and noise-reducing composite wheel assembly structure, the specific working principle of which is as follows:

[0031] The spring 6 can alleviate the vibration transmitted from the composite wheel 2 to the base 1, while the damper 7 can suppress the vibration of the spring 6 itself. The composite wheel 2 is composed of an inner wheel 9 and an outer wheel 10. When the outer surface of the composite wheel 2 is severely worn, the outer wheel 10 can be directly replaced, thus ensuring that the suitcase is more comfortable to use.

[0032] The method for assembling and disassembling the inner wheel body 9 and the outer wheel body 10 is as follows: During installation, the outer wheel body 10 is fitted over the inner wheel body 9, so that the locking block 12 on the outer wheel body 10 is engaged in the limiting groove 11 on the inner wheel body 9, thereby ensuring that the outer wheel body 10 will not rotate. At this time, the multiple through holes 13 on the inner wheel body 9 will be aligned with the multiple threaded holes 14 on the outer wheel body 10. The fixing screw 15 is rotated and inserted into the through holes 13 and the threaded holes 14, thereby fixing the outer wheel body 10 and the inner wheel body 9 together. During disassembly, the above operation is simply reversed.

[0033] It is important to note that when selling suitcases with this wheelset, the seller needs to provide a sales channel for the outer wheel body 10 so that users can replace it.

[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 shock-absorbing and noise-reducing composite wheel set structure, comprising a base (1), characterized in that: The lower part of the base (1) is provided with a connecting seat (3), a damping mechanism is arranged between the connecting seat (3) and the base (1), the bottom of the connecting seat (3) is fixedly connected with a mounting plate (4), the two sides of the mounting plate (4) are respectively provided with a composite wheel body (2), the two composite wheel bodies (2) are respectively rotationally connected with the mounting plate (4) through rotation shafts (5), the composite wheel body (2) is composed of an inner wheel body (9) and an outer wheel body (10), the outer wheel body (10) is sleeved on the outer surface of the inner wheel body (9), and a fixing mechanism is arranged between the inner wheel body (9) and the outer wheel body (10).

2. The shock-absorbing and noise-reducing composite wheel set structure according to claim 1, characterized in that: The fixing mechanism comprises a clamping block (12) and a fixing screw (15), a plurality of limiting grooves (11) are formed in the outer wall of the inner wheel body (9), a plurality of clamping blocks (12) are fixedly connected to the inner wall of the outer wheel body (10), the plurality of clamping blocks (12) are in one-to-one correspondence with the plurality of limiting grooves (11), a plurality of through holes (13) are formed in the outer wall of the inner wheel body (9), the plurality of through holes (13) are distributed on the side walls of the plurality of limiting grooves (11), threaded holes (14) are formed in the side walls of the plurality of clamping blocks (12), the plurality of threaded holes (14) are in one-to-one correspondence with the plurality of through holes (13), and fixing screws (15) are slidably inserted into the plurality of through holes (13), and the plurality of fixing screws (15) are in threaded connection with the plurality of threaded holes (14).

3. The shock-absorbing and noise-reducing composite wheel set structure according to claim 2, characterized in that: The plurality of limiting grooves (11) are arranged in a ring shape.

4. The shock-absorbing and noise-reducing composite wheel set structure according to claim 1, characterized in that: The damping mechanism comprises a damper (7) and a spring (6), the damper (7) is fixedly installed between the upper end of the connecting seat (3) and the bottom of the base (1), the outer surface of the damper (7) is wound with the spring (6), and the two ends of the spring (6) are fixedly connected with the connecting seat (3) and the base (1).

5. The shock-absorbing and noise-reducing composite wheel set structure according to claim 1, characterized in that: Four fixing holes (8) are formed in the base (1), and the four fixing holes (8) are distributed at the four corners of the base (1).

6. The shock-absorbing and noise-reducing composite wheel set structure according to claim 1, characterized in that: The lower ends of the two sides of the connecting seat (3) are fixedly connected with shielding plates (16).

7. The shock-absorbing and noise-reducing composite wheel set structure according to claim 6, characterized in that: The shielding plates (16) are in arc-shaped structures.

Images