Luggage wheel set with damping function

Abstract

The utility model discloses a luggage wheel set with a damping function, which is characterized in that an upper positioning shaft hole and a lower positioning shaft hole for a vertical shaft to penetrate through are respectively formed in the middle parts of a wheel seat and a bracket, an upper hole cavity communicated with the upper positioning shaft hole is formed in the bottom of the wheel seat, a supporting step is arranged at the upper part of the lower positioning shaft hole, and the vertical shaft comprises a regular prism upper shaft and a cylindrical lower shaft; an axial limiting part is arranged between the upper shaft and the lower shaft, the lower shaft is inserted into the lower positioning shaft hole, the upper shaft penetrates through the upper positioning shaft hole, the damping spring is inserted outside the upper shaft, and the upper portion of the vertical shaft is fixed through a screw. The damping spring is placed between the upper shaft part of the vertical shaft and the wheel seat, so that the rotation flexibility of the brake wheel at the position cannot be influenced, a consumer can turn and walk in a more labor-saving manner when using the box, for example, the damping spring is placed at the joint of the lower shaft part of the vertical shaft and the bracket, and friction is generated between the damping spring and the bracket; as a result, the box body is inflexible during turning, and a consumer can use the box very strenuously.

Description

Technical Field

[0001] The utility model relates to luggage accessories, in particular to a luggage wheel set with a shock-absorbing function. Background Art

[0002] The luggage pulley has no shock absorption effect or poor shock absorption effect. When the road is bumpy, the items in the suitcase will be scattered and the pulley will be easily damaged. The brake wheel is hinged to the luggage, and a spring is used to connect the brake wheel and the luggage. The spring is mainly used to support the luggage, which can achieve a better shock absorption effect than shock-absorbing rubber. However, since both ends of the spring are fixedly connected to the brake wheel and the luggage, the spring is easy to fall off and the shock-absorbing wheel is easy to be damaged when used on bumpy roads for a long time.

[0003] The shock-absorbing movable wheel structure in the prior art includes a wheel shell for connecting to a box body, a rotating shaft connected to the wheel shell and capable of moving up and down relative to the wheel shell, a bracket connected to the lower end of the rotating shaft, and a spring supported between the wheel shell and the rotating shaft. During the vibration process, the bracket and the rotating shaft move up and down relative to the wheel seat. During this process, the end of the bracket is likely to collide with or rub against the wheel shell, affecting the normal rotation of the rotating shaft and the bracket. Utility Model Content

[0004] In order to overcome the defects of the prior art, the utility model provides a luggage wheel set with a simple and compact structure and a shock-absorbing function, which is convenient for flexible rotation between the wheel seat, the vertical axis and the bracket, and has the advantage of easy assembly.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A luggage wheel set with a shock-absorbing function comprises a wheel seat, a bracket, a brake wheel, a shock-absorbing spring and a vertical shaft, wherein the wheel seat and the bracket are respectively provided with an upper positioning shaft hole and a lower positioning shaft hole for the vertical shaft to pass through, the bottom of the wheel seat is provided with an upper hole cavity which passes through the upper positioning shaft hole, the upper part of the lower positioning shaft hole is provided with a supporting step, the vertical shaft comprises an upper shaft of a regular prism and a lower shaft of a cylinder, an axial limiting portion is provided between the upper shaft and the lower shaft, the lower shaft can be axially positioned, slidably and rotatably inserted in the lower positioning shaft hole, the upper shaft passes through the upper positioning shaft hole which is rotatably matched with the vertical shaft, the shock-absorbing spring is inserted outside the upper shaft, one end of the shock-absorbing spring is supported on the axial limiting portion, and the other end abuts against the inner wall of the upper hole cavity, and the upper part of the vertical shaft is fixed by a screw.

[0007] Furthermore, a positioning hole is provided on the upper portion of the upper shaft, the screw is installed and fixed in the positioning hole, and the screw is coated with anti-falling glue.

[0008] Furthermore, a ring groove is provided on the lower side wall of the lower shaft, and a square rivet connected with the bracket is inserted into the ring groove.

[0009] Furthermore, a gasket is provided between the bottom of the lower shaft and the lower positioning shaft hole.

[0010] Compared with the prior art, the utility model has the following beneficial effects: (1) When the box is loaded, the hidden shock-absorbing spring can immediately play a shock-absorbing role, reducing the loud noise caused by the box brake wheel hitting the ground, thereby reducing the damage to the luggage items;

[0011] (2) Protection of the shock-absorbing spring placement position. The shock-absorbing spring is placed between the upper axis of the vertical axis and the wheel seat, which will not affect the rotation flexibility of the brake wheel at that location, allowing consumers to use the box more effortlessly when turning. If the shock-absorbing spring is placed between the lower axis of the vertical axis and the bracket connection, friction will occur between the shock-absorbing spring and the bracket, which will cause the box to be inflexible when turning, and consumers will have difficulty using the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 It is a schematic diagram of part A of the utility model;

[0015] Figure 4 This is a schematic diagram of the wheel seat structure of the utility model;

[0016] Figure 5 It is a schematic diagram of the vertical axis structure of the utility model;

[0017] In the figure, 1. wheel seat; 11. upper positioning shaft hole; 2. bracket; 21. support step; 22. lower positioning shaft hole; 3. brake wheel; 5. screw; 6. shock-absorbing spring; 7. vertical axis; 71. upper axis; 711. positioning hole; 72. axial limit part; 73. lower axis; 731. ring groove; 10. gasket; 12. square rivet; 13. upper hole cavity. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] like Figure 1-Figure 5As shown, a luggage wheel set with shock absorption function comprises a wheel seat 1, a bracket 2, a brake wheel 3, a shock absorbing spring 6 and a vertical shaft 7, wherein the wheel seat 1 and the bracket 2 are respectively provided with an upper positioning shaft hole 11 and a lower positioning shaft hole 22 for the vertical shaft 7 to pass through, the bottom of the wheel seat 1 is provided with an upper hole cavity 13 which passes through the upper positioning shaft hole 11, and the upper part of the lower positioning shaft hole 22 is provided with a supporting step 21, the vertical shaft 7 comprises an upper shaft 71 of a regular prism and a lower shaft 73 of a cylinder, an axial limiting portion 72 is provided between the upper shaft 71 and the lower shaft 73, the lower shaft 73 can be axially positioned, slidably and rotatably inserted in the lower positioning shaft hole 22, the upper shaft 71 passes through the upper positioning shaft hole 11 which is rotatably matched with the vertical shaft 7, the shock absorbing spring 6 is inserted outside the upper shaft 71, one end of the shock absorbing spring 6 is supported on the axial limiting portion 72, and the other end abuts against the inner wall of the upper hole cavity 13, and the upper part of the vertical shaft 7 is fixed by a screw 5.

[0020] Furthermore, a positioning hole 711 is provided on the upper portion of the upper shaft 71 , and the screw 5 is installed and fixed in the positioning hole 711 , and the screw 5 is coated with anti-falling glue.

[0021] Furthermore, a ring groove 731 is formed on the lower side wall of the lower shaft 73 , and a square rivet 12 which is matched with the bracket 2 is inserted into the ring groove 731 .

[0022] Furthermore, a gasket 10 is provided between the bottom of the lower shaft 73 and the lower positioning shaft hole 22 .

[0023] By adopting the above technical solution, when the luggage is loaded, the wheel seat 1 moves downward, thereby compressing the shock-absorbing spring 6 to achieve a buffering and shock-absorbing effect, and the vertical shaft 7 can rotate with the wheel seat 1; it has the following advantages: (1) the shock-absorbing spring is moved inward to the upper cavity 13 in the wheel seat 1, and the shock-absorbing spring 6 is shielded and protected through the upper cavity 13, and the inner wall of the upper cavity 13 cooperates with the axial limiting portion 72 to realize the floating support of the vertical shaft 7 on the bracket 2 through the shock-absorbing spring 6, and the vertical shaft 7 is supported by the lower positioning shaft hole 22 and the upper positioning shaft hole 23. The positioning hole 11 is used for positioning, which ensures that the positioning rotation and axial movement of the vertical shaft 7 are stable and reliable, and the size and space of the wheel seat 1 are effectively utilized, so that the overall structure is simple and compact; (2) the rotating parts on the wheel seat assembly do not contact the shock-absorbing spring 7 (while the shock-absorbing spring 76 in the prior art is in contact with the bracket 2, and the vertical shaft 7 is fixed on the bracket 2, so that when the vertical shaft 7 and the wheel seat 1 rotate relative to each other, there is friction between the shock-absorbing spring 6 and the bracket 2), thereby making the vertical shaft 7 rotate relative to the wheel seat 1 smoother and more flexible.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A luggage wheel set with shock-absorbing function, characterized by: The invention comprises a wheel seat (1), a bracket (2), a brake wheel (3), a shock absorbing spring (6) and a vertical shaft (7). The wheel seat (1) and the bracket (2) are respectively provided with an upper positioning shaft hole (11) and a lower positioning shaft hole (22) for the vertical shaft (7) to pass through in the middle thereof. The bottom of the wheel seat (1) is provided with an upper hole cavity (13) which is in communication with the upper positioning shaft hole (11). The upper part of the lower positioning shaft hole (22) is provided with a supporting step (21). The vertical shaft (7) comprises an upper shaft (71) of a regular prism and a lower shaft (73) of a cylinder. An axial limiting portion (72) is provided between the shaft (71) and the lower shaft (73); the lower shaft (73) can be axially positioned, slidably and rotatably inserted into the lower positioning shaft hole (22); the upper shaft (71) passes through the upper positioning shaft hole (11) which is rotatably matched with the vertical shaft (7); the damping spring (6) is inserted outside the upper shaft (71); one end of the damping spring (6) is supported on the axial limiting portion (72) and the other end abuts against the inner wall of the upper hole cavity (13); the upper part of the vertical shaft (7) is fixed by a screw (5).

2. The luggage wheel set with shock-absorbing function according to claim 1, characterized in that: A positioning hole (711) is provided on the upper portion of the upper shaft (71), and the screw (5) is installed and fixed in the positioning hole (711), and the screw (5) is coated with anti-falling glue.

3. The luggage wheel set with shock-absorbing function according to claim 1, characterized in that: The lower side wall of the lower shaft (73) is provided with an annular groove (731), and a square rivet (12) which is matched and connected with the bracket (2) is inserted into the annular groove (731).

4. The luggage wheel set with shock-absorbing function according to claim 3 is characterized in that: A gasket (10) is provided between the bottom of the lower shaft (73) and the lower positioning shaft hole (22).

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