Liftable draw-bar box wheel

Abstract

The utility model discloses a liftable draw-bar box wheel, and relates to the technical field of draw-bar box wheels, the draw-bar box wheel comprises a wheel support, a connecting shaft, a wheel and a wheel seat, the connecting shaft is arranged at the lower end of the wheel support; the wheel is in shaft connection with the connecting shaft; a lifting mechanism for adjusting the height of the wheel is arranged at the upper end of the wheel seat; the lower end of the wheel seat is rotatably connected with a pulley connecting shaft, and the lower end of the pulley connecting shaft is fixedly connected with a wheel support. Through the lifting mechanism which is arranged at the upper end of the wheel seat and is used for adjusting the height of the wheel, the function of lifting the draw-bar box wheel is achieved; the controllable air spring is arranged between the wheel seat and the base, and the controllable air spring is in threaded connection with the base and the wheel seat, so that the effects of convenient disassembly and replacement are achieved, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of trolley case wheels, in particular to a trolley case wheel which can be raised and lowered. Background Art

[0002] Trolley case wheels are mainly used at the bottom of various trolley cases for support and movement. They are mainly made of hard plastic or rubber, including universal wheels, one-way wheels, etc.

[0003] Traditional suitcase wheels are not easy to lift and lower. When the road surface is uneven or there are bumps, they will collide with the suitcase, which can easily damage the suitcase. They will also produce loud noises, causing some unnecessary impacts, making it inconvenient to use the suitcase.

[0004] Based on this, a lifting and lowering suitcase wheel is now provided to eliminate the drawbacks of the existing device. Utility Model Content

[0005] The utility model aims to provide a liftable suitcase wheel to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A liftable suitcase wheel, comprising:

[0008] Wheel bracket;

[0009] A connecting shaft, the connecting shaft being arranged at the lower end of the wheel bracket;

[0010] A wheel, wherein the wheel is axially connected to the connecting shaft;

[0011] The wheel seat has a lifting mechanism for adjusting the wheel height at its upper end; a pulley at the lower end of the wheel seat is connected to a pulley connecting shaft, and a wheel bracket is fixedly connected to the lower end of the pulley connecting shaft.

[0012] As a further solution of the utility model: the lifting mechanism includes a controllable gas spring, which is arranged at the upper end of the wheel seat, and a lower threaded hole is opened in the middle of the upper end surface of the wheel seat, and a lower threaded column matching with the lower threaded hole is provided at the lower end of the controllable gas spring, and a fixing component for fixing to the trolley case is provided at the upper end of the controllable gas spring, and a control component for controlling the lifting and lowering of the telescopic end of the controllable gas spring is provided on the wheel seat.

[0013] As a further solution of the utility model: the fixing assembly includes a base, the four corners of the base are provided with connection holes, the middle of the base is provided with an upper threaded hole, the telescopic end of the controllable gas spring is fixedly connected with an upper threaded column, and the upper threaded column cooperates with the upper threaded hole.

[0014] As a further solution of the utility model: the control component includes a regulating valve, which is arranged in the middle of the lower end of the controllable gas spring, and the middle part of one side of the upper end plate of the wheel seat is rotatably connected with a rotating shaft, and a pedal is fixedly connected to the rotating shaft, and a lever is fixedly connected to the left end of the pedal, and a connecting spring is installed between the middle of the lever and the wheel seat.

[0015] As a further solution of the present invention: the wheels are made of rubber.

[0016] As a further solution of the utility model: the base is threadedly connected to the controllable gas spring.

[0017] As a further solution of the utility model: the pedal is provided with an anti-slip pattern.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model has a lifting mechanism disposed on the upper end of the wheel seat for adjusting the wheel height. When passing through uneven roads or raised areas, the height of the wheels can be adjusted to allow the trolley case to pass smoothly, thereby achieving the effect of lifting and lowering the wheels of the trolley case.

[0020] 2. The utility model has a controllable gas spring disposed between the wheel seat and the base, and the controllable gas spring is connected to the base and the wheel seat through threads, so that the disassembly and replacement are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a schematic diagram of the structure of a liftable trolley case wheel.

[0022] Figure 2 The present invention is a schematic diagram of the structure of a control component in a liftable trolley case wheel.

[0023] Figure 3 The present invention is a schematic structural diagram of a liftable mid-wheel base of a trolley case.

[0024] Figure 4 The present invention is a structural schematic diagram of a wheel-in-wheel seat of a trolley case that can be raised or lowered.

[0025] Figure 5 The present invention is a schematic diagram of the structure of a controllable gas spring in a liftable trolley case wheel.

[0026] Among them: 1. wheel; 2. connecting shaft; 3. wheel bracket; 4. pedal; 5. connecting hole; 6. base; 7. upper threaded column; 8. controllable gas spring; 9. wheel seat; 10. pulley connecting shaft; 11. rotating shaft; 12. regulating valve; 13. lever; 14. connecting spring; 15. upper threaded hole; 16. lower threaded hole; 17. lower threaded column; DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] See also Figure 1-Figure 5 In an embodiment of the utility model, a liftable suitcase wheel comprises a wheel bracket 3, a connecting shaft 2, a wheel 1 and a wheel seat 9, wherein the connecting shaft 2 is arranged at the lower end of the wheel bracket 3; the wheel 1 is axially connected to the connecting shaft 2; the wheel 1 is made of rubber; a lifting mechanism for adjusting the height of the wheel 1 is provided at the upper end of the wheel seat 9; a pulley at the lower end of the wheel seat 9 is connected to a pulley connecting shaft 10, and the lower end of the pulley connecting shaft 10 is fixedly connected to the wheel bracket 3; the base 6 is threadedly connected to the controllable gas spring 8.

[0029] The lifting mechanism includes a controllable gas spring 8, which is arranged at the upper end of a wheel seat 9. A lower threaded hole 16 is opened in the middle of the upper end surface of the wheel seat 9, and a lower threaded column 17 cooperating with the lower threaded hole 16 is provided at the lower end of the controllable gas spring 8. A fixing component for fixing to a trolley case is provided at the upper end of the controllable gas spring 8, and a control component for controlling the lifting and lowering of the telescopic end of the controllable gas spring 8 is provided on the wheel seat 9; the upper and lower ends of the controllable gas spring are connected by threads, and are divided into an upper threaded column 7 and a lower threaded column 17, which is convenient for installation and disassembly.

[0030] The fixing assembly includes a base 6 , the four corners of the base 6 are provided with connection holes 5 , the middle of the base 6 is provided with an upper threaded hole 15 , the telescopic end of the controllable gas spring 8 is fixedly connected with an upper threaded column 7 , and the upper threaded column 7 cooperates with the upper threaded hole 15 .

[0031] The control component includes a regulating valve 12, which is arranged in the middle of the lower end of the controllable gas spring 8. The middle part of one side of the upper end plate of the wheel seat 9 is rotatably connected with a rotating shaft 11, and a pedal 4 is fixedly connected to the rotating shaft 11. The left end of the pedal 4 is fixedly connected with a lever 13, and a connecting spring 14 is installed between the middle of the lever 13 and the wheel seat 9; the pedal 4 is provided with an anti-slip pattern to prevent slipping when stepping on the pedal; when the trolley case needs to be raised or lowered, the lever 13 is moved to move the regulating valve 12 by stepping on the pedal 4, so that the height of the trolley case wheel can be adjusted.

[0032] Working principle: The upper and lower ends of the controllable gas spring 8 are connected by threads, and are connected with the upper threaded hole 15 in the middle of the base 6 and the lower threaded hole 16 in the middle of the wheel seat 9. When in use, the controllable gas spring 8 is threadedly connected to the box body through a plurality of connection holes 5 provided on the four corners of the base 6, which facilitates the removal and replacement of the controllable gas spring 8. When the height of the suitcase needs to be adjusted, the lever 13 is pressed on the pedal 4 to move the regulating valve 12 so that the height of the suitcase wheel can be adjusted. When the pedal 4 is released, the height of the suitcase wheel is fixed at the adjusted position, so that the height of the suitcase wheel can be raised and lowered, so that the suitcase can be smoothly and safely passed through uneven and raised areas, which facilitates the use of the suitcase.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Although the present specification is described in accordance with the implementation modes, not every implementation mode includes only one technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A liftable suitcase wheel, comprising: Wheel bracket (3); A connecting shaft (2), wherein the connecting shaft (2) is arranged at the lower end of the wheel bracket (3); A wheel (1), wherein the wheel (1) is axially connected to a connecting shaft (2); The invention is characterized in that it also includes a wheel seat (9), the upper end of which is provided with a lifting mechanism for adjusting the height of the wheel (1); the lower end of the wheel seat (9) is rotatably connected to a pulley connecting shaft (10), and the lower end of the pulley connecting shaft (10) is fixedly connected to a wheel bracket (3).

2. The liftable suitcase wheel according to claim 1, characterized in that: The lifting mechanism comprises a controllable gas spring (8), the controllable gas spring (8) is arranged at the upper end of the wheel seat (9), a lower threaded hole (16) is provided in the middle of the upper end surface of the wheel seat (9), the lower end of the controllable gas spring (8) is provided with a lower threaded column (17) matching with the lower threaded hole (16), the upper end of the controllable gas spring (8) is provided with a fixing component for fixing to the trolley case, and the wheel seat (9) is provided with a control component for controlling the lifting and lowering of the telescopic end of the controllable gas spring (8).

3. The liftable suitcase wheel according to claim 2, characterized in that: The fixing assembly comprises a base (6), the four corners of the base (6) are provided with connection holes (5), the middle of the base (6) is provided with an upper threaded hole (15), the telescopic end of the controllable gas spring (8) is fixedly connected with an upper threaded column (7), and the upper threaded column (7) cooperates with the upper threaded hole (15).

4. The liftable suitcase wheel according to claim 2, characterized in that: The control assembly comprises a regulating valve (12), the regulating valve (12) being arranged in the middle of the lower end of the controllable gas spring (8), a rotating shaft (11) being rotatably connected to the middle of one side of the upper end plate of the wheel seat (9), a pedal (4) being fixedly connected to the rotating shaft (11), a lever (13) being fixedly connected to the left end of the pedal (4), and a connecting spring (14) being installed between the middle of the lever (13) and the wheel seat (9).

5. The liftable suitcase wheel according to claim 1, characterized in that: The wheel (1) is made of rubber.

6. The liftable suitcase wheel according to claim 3, characterized in that: The base (6) is threadedly connected to the controllable gas spring (8).

7. The liftable suitcase wheel according to claim 4, characterized in that: The pedal (4) is provided with an anti-slip pattern.

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