A luggage trolley shock-absorbing structure and a luggage trolley

Abstract

The utility model provides a kind of luggage caster's damping structure and luggage, it includes wheel seat and the wheel body being equipped in the both sides of wheel seat, the bottom of wheel seat is equipped with the cavity extending upwards, spring piece and support are equipped in cavity and are arranged vertically, two ends of spring piece are respectively supported the top of cavity and support, the both sides of wheel seat are equipped with the through hole being communicated with cavity, through hole is long strip shape and extends up and down, the support is rotatably connected with shaft body, two ends of shaft body respectively extend from the through hole of the both sides of wheel seat, the wheel body located the both sides of wheel seat is rotatably connected with two ends of shaft body.The wheel body of the scheme meets road impact, and impact force will be transmitted to spring piece by shaft body and support, spring piece occurs compression deformation, effectively absorbs and buffers vibration energy, and plays a protective role to wheel body;In addition, it can also greatly reduce the impact force transmitted to box and user's arm, so that the luggage is more stable, quiet, labor-saving when being dragged under various road conditions, greatly improves the use comfort.

Description

Technical Field

[0001] This utility model relates to the field of casters, and more particularly to a shock-absorbing structure for a suitcase caster and a suitcase. Background Technology

[0002] As a type of bag equipped with a pull rod and wheels, the core function of a suitcase is to provide convenience for users when carrying luggage during travel. Currently, most mainstream suitcase wheels on the market lack effective shock absorption or cushioning structures. When users drag heavily loaded suitcases across uneven surfaces or roads with significant undulations, the wheels will experience continuous rigid impacts with the ground. This impact not only causes difficulty in dragging and generates noise, but it is also transmitted directly to the interior of the suitcase through the axle. Over time, this can easily lead to premature damage to the wheels themselves and the connecting structure of the suitcase, seriously affecting the product's lifespan and user experience.

[0003] Therefore, it is necessary to make further improvements. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to propose a shock-absorbing structure for luggage casters and a luggage box, which is equipped with a shock-absorbing structure to improve user comfort and extend the service life of the wheels.

[0005] To achieve the above objectives, this utility model provides a shock-absorbing structure for luggage casters, comprising a wheel seat and wheel bodies disposed on both sides of the wheel seat. The bottom of the wheel seat has an upwardly extending cavity, and the cavity contains a vertically arranged spring and a bracket. The two ends of the spring abut against the top of the cavity and the bracket, respectively. The two sides of the wheel seat have through holes communicating with the cavity, and the through holes are elongated strips extending vertically. The bracket is rotatably connected to a shaft, and the two ends of the shaft extend from the through holes on both sides of the wheel seat. The wheel bodies located on both sides of the wheel seat are rotatably connected to the two ends of the shaft, respectively.

[0006] Furthermore, the inner side of the wheel body is provided with a wheel cavity, and a bearing connected to the shaft body is provided in the wheel cavity.

[0007] Furthermore, stabilizing bushings are provided at both ends of the shaft, the stabilizing bushings are located between the bearing and the bracket, and the stabilizing bushings have protruding edges that abut against the outer wall of the wheel seat.

[0008] Furthermore, the shaft includes a hollow female nail and a matching female nail. The head of the hollow female nail is located on the outside of one of the wheel bodies, and the female nail is located on the outside of the other wheel body and is connected and fixed to the hollow female nail.

[0009] Furthermore, the top of the cavity is provided with a downwardly extending upper positioning part, and the top of the bracket is provided with an upwardly extending lower positioning part. The two ends of the spring are respectively sleeved on the upper positioning part and the lower positioning part.

[0010] Furthermore, the cavity is a cylindrical cavity, and the upper and lower ends of the support are respectively provided with disc portions, and there is a gap between the outer side of the disc portion and the cavity wall of the cavity.

[0011] Furthermore, the wheel seat is also provided with a vertically extending shaft cavity, in which a main shaft is rotatably connected. The main shaft has an annular notch, and the side of the wheel seat is provided with an anti-detachment part that penetrates the shaft cavity. The anti-detachment part is located on the annular notch.

[0012] This application also provides a suitcase having the shock-absorbing structure described above.

[0013] Compared with the prior art, the advantages of this invention are: when the wheel of this solution encounters road impact, the impact force is transmitted to the spring through the axle and bracket. The spring undergoes compression deformation, effectively absorbing and buffering the vibration energy, thus protecting the wheel. In addition, it can greatly reduce the impact force transmitted to the suitcase and the user's arm, making the suitcase more stable, quiet, and effortless to drag under various road conditions, greatly improving the comfort of use. Attached Figure Description

[0014] Figure 1 This is an exploded view of the luggage wheels in this embodiment;

[0015] Figure 2 This is a cross-sectional view of the luggage caster through the central axis of the axle body in this embodiment;

[0016] Figure 3 This is a cross-sectional view of the luggage casters through the central axis of the main shaft in this embodiment;

[0017] Figure 4 This is a schematic diagram of the wheel seat, spring, and bracket in this embodiment. Detailed Implementation

[0018] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0019] See Figure 1-4This application provides a shock-absorbing structure for a suitcase caster, comprising a wheel seat 1 and wheel bodies 2 disposed on both sides of the wheel seat 1. The bottom of the wheel seat 1 has an upwardly extending cavity 3, within which a vertically arranged spring 4 and a bracket 5 are disposed. The two ends of the spring 4 abut against the top of the cavity 3 and the bracket 5, respectively. The wheel seat 1 has through holes 6 on both sides communicating with the cavity 3. The through holes 6 are elongated strips extending vertically. The bracket 5 is rotatably connected to a shaft, with both ends of the shaft extending from the through holes 6 on both sides of the wheel seat 1. The wheel bodies 2 located on both sides of the wheel seat 1 are rotatably connected to the two ends of the shaft. By setting a cavity 3 containing the spring 4 and the bracket 5 at the bottom of the wheel seat 1, and designing the shaft connecting the wheel bodies 2 to slide vertically along the elongated through hole 6, an effective vertical shock-absorbing mechanism is created. When the wheel body 2 encounters a road impact, the impact force is transmitted to the bracket 5 through the shaft, thereby compressing the spring 4. The spring 4 absorbs and buffers the vibration energy through deformation. This not only protects the wheel itself from rigid impacts and extends its service life, but also significantly reduces the vibration transmitted to the suitcase and the user's arm, making the dragging experience smoother, quieter and less strenuous, greatly improving user comfort.

[0020] The inner side of the wheel body 2 is provided with a wheel cavity, and a bearing 7 connected to the axle is provided in the wheel cavity. The bearing 7 ensures that the wheel body 2 can rotate smoothly and with low resistance around the axle, making the luggage more flexible and convenient to pull.

[0021] Stabilizing bushings 8 are also provided at both ends of the shaft. The stabilizing bushings 8 are located between the bearing 7 and the bracket 5. The stabilizing bushings 8 have a protruding edge 81 that abuts against the outer wall of the wheel seat 1. The stabilizing bushings 8 and their protruding edge 81 structure play an axial positioning role, which can prevent the shaft from excessive lateral movement or wobble in the through hole, and ensure the stability of the shaft during the up and down sliding process. This makes the shock absorption process more stable and smooth, reduces unnecessary friction and noise, and further optimizes the shock absorption performance and user experience.

[0022] The shaft includes a hollow female nail 9 and a matching female nail 10. The nail head 91 of the hollow female nail is located on the outside of one of the wheel bodies 2, and the female nail 10 is located on the outside of the other wheel body 2 and is connected and fixed to the hollow female nail 9. This split shaft design makes the assembly of the wheel body 2 and the internal support 5 more convenient. At the same time, by fastening from both sides, the connection between the shaft and the support 5 and the wheel seat 1 can be ensured to be more firm and stable, avoiding loosening that may occur under long-term vibration, and improving the overall structural strength and durability of the product.

[0023] The top of the cavity 3 is provided with a downwardly extending upper positioning part 11, and the top of the bracket 5 is provided with an upwardly extending lower positioning part 12. The two ends of the spring 4 are respectively sleeved on the upper positioning part 11 and the lower positioning part 12. The upper positioning part 11 and the lower positioning part 12 can position the spring 4 to avoid the spring from twisting or shifting during compression.

[0024] The cavity 3 is a cylindrical cavity, and the upper and lower ends of the support 5 are respectively provided with disc portions 51. There is a gap between the outer side of the disc portion 51 and the cavity wall of the cavity 3. The gap between the disc portion 51 and the cylindrical cavity wall provides sufficient guidance for the up and down movement of the support 5, preventing it from tilting and getting stuck, and also avoids excessive friction with the cavity wall during movement. This design makes the movement of the support smoother.

[0025] The wheel seat 1 is also provided with a vertically extending shaft cavity 13. A main shaft 14 is rotatably connected inside the shaft cavity 13. An annular notch 15 is opened on the main shaft 14. An anti-detachment part 16 is provided on the side of the wheel seat 1, which passes through the shaft cavity 13. The anti-detachment part 16 is located on the annular notch 15 and is screwed onto the wheel seat. A threaded hole is opened on the wheel seat 1 for the threaded end of the anti-detachment part 16 to be connected. When the anti-detachment part 16 is unscrewed, the main shaft 14 can be taken out from the shaft cavity 13. This structure does not hinder the rotation of the main shaft 14 and ensures that the main shaft 14 will not accidentally come out of the wheel seat 1.

[0026] This application also provides a suitcase having the shock-absorbing structure described above.

[0027] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A shock-absorbing structure for suitcase casters, characterized in that: The wheel includes a wheel seat (1) and wheel bodies (2) located on both sides of the wheel seat (1). The bottom of the wheel seat (1) is provided with an upwardly extending cavity (3). The cavity (3) is provided with a vertically arranged spring (4) and a bracket (5). The two ends of the spring (4) abut against the top of the cavity (3) and the bracket (5) respectively. The two sides of the wheel seat (1) are provided with through holes (6) communicating with the cavity (3). The through holes (6) are elongated strips extending vertically. The bracket (5) is rotatably connected to a shaft. The two ends of the shaft extend from the through holes (6) on both sides of the wheel seat (1) respectively. The wheel bodies (2) located on both sides of the wheel seat (1) are rotatably connected to the two ends of the shaft respectively.

2. The shock-absorbing structure for a suitcase caster according to claim 1, characterized in that: The inner side of the wheel body (2) is provided with a wheel cavity, and a bearing (7) connected to the shaft body is provided in the wheel cavity.

3. The shock-absorbing structure for a suitcase caster according to claim 2, characterized in that: The shaft body is also provided with stabilizing bushings (8) at both ends. The stabilizing bushings (8) are located between the bearing (7) and the bracket (5). The stabilizing bushings (8) have a protruding edge (81) that abuts against the outer wall of the wheel seat (1).

4. A shock-absorbing structure for a suitcase caster according to any one of claims 1-3, characterized in that: The shaft includes a hollow female nail (9) and a matching female nail (10). The nail head (91) of the hollow female nail (9) is located on the outside of one of the wheel bodies (2), and the female nail (10) is located on the outside of the other wheel body (2) and is connected and fixed to the hollow female nail (9).

5. The shock-absorbing structure for a suitcase caster according to claim 4, characterized in that: The top of the cavity (3) is provided with a downwardly extending upper positioning part (11), and the top of the bracket (5) is provided with an upwardly extending lower positioning part (12). The two ends of the spring (4) are respectively sleeved on the upper positioning part (11) and the lower positioning part (12).

6. The shock-absorbing structure for a suitcase caster according to claim 4, characterized in that: The cavity (3) is a cylindrical cavity, and the upper and lower ends of the support (5) are respectively provided with a disc part (51), and there is a gap between the outer side of the disc part (51) and the cavity wall of the cavity (3).

7. A shock-absorbing structure for a suitcase caster according to any one of claims 1-3, characterized in that: The wheel seat (1) is also provided with a vertically extending shaft cavity (13), and a main shaft (14) is rotatably connected inside the shaft cavity (13). An annular notch (15) is opened on the main shaft (14). An anti-detachment part (16) is provided on the side of the wheel seat (1) and passes through the shaft cavity (13). The anti-detachment part (16) is located on the annular notch (15).

8. A suitcase, characterized in that: The suitcase has a shock-absorbing structure as described in any one of claims 1-7.

Images