Trolley case wheel with braking function

Abstract

The utility model relates to the technical field of draw-bar boxes, in particular to a draw-bar box wheel with a brake function, which comprises a mounting plate, mounting holes are uniformly arranged at four corners of the outer wall of the mounting plate, screws penetrate through the mounting holes to be screwed into the bottom of the draw-bar box, a shaft sleeve is welded on the side wall of the mounting plate, and a rotating shaft is rotatably arranged in the shaft sleeve. A rotating plate is welded to the rotating shaft, a roller mounting base is arranged in the middle of the rotating plate, a ball is arranged in the roller mounting base in a rolling mode, the top of the ball makes contact with the mounting plate, a sliding groove is formed in the bottom of the mounting plate, and a wear-resisting rubber sleeve is bonded in an inner cavity of the sliding groove; the draw-bar box wheel with the braking function can effectively prevent the draw-bar box from moving when the draw-bar box is parked, has good braking performance and is simple in braking structure.

Description

Technical Field

[0001] The utility model relates to the technical field of trolley cases, in particular to a wheel for a trolley case with a braking function. Background Art

[0002] A suitcase, also known as a travel case or trolley case, is a type of luggage used to carry items. It's typically used to store clothing, personal care products, and souvenirs needed for travel. People often drag their suitcases with them when traveling. When dragging a suitcase on public transportation, the wheels on the bottom of the suitcase often cause it to roll around even when properly positioned. For example, patent (CN218084943U3) describes wear-resistant wheels with automatic braking. When in use, the case tilts the wheels, causing the rolling element to contact the ground and lift the brake element away from the wheel, reducing friction. However, when the case is parked vertically, the rolling element rolls against the ground, resulting in low friction and an instability that can cause the case to slip or tip over. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a wheel for a trolley case with a braking function.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A wheel for a trolley case with a braking function is designed, comprising a mounting plate, mounting holes evenly opened at the four corners of the outer wall of the mounting plate, screws passing through the mounting holes and screwed into the bottom of the trolley case, a shaft sleeve welded to the side wall of the mounting plate, a rotating shaft rotatably set in the shaft sleeve, a rotating plate welded on the rotating shaft, a roller mounting seat provided in the middle of the rotating plate, a ball rolling set in the roller mounting seat, and the top of the ball in contact with the mounting plate.

[0006] Preferably, a slide groove is provided at the bottom of the mounting plate, a wear-resistant rubber sleeve is bonded into the inner cavity of the slide groove, and the wear-resistant rubber sleeve is in contact with the ball bearing.

[0007] Preferably, a pair of positioning grooves are formed on the outer wall of the roller mounting seat, and a pair of positioning rods are provided on the bottom of the mounting plate, and the positioning rods pass through the positioning grooves.

[0008] Preferably, a hinge is provided at the bottom of the positioning rod, and the positioning rod is rotatably connected to the clamping plate through the hinge.

[0009] Preferably, a shock-absorbing spring is sleeved on the outer wall of the positioning rod, and the shock-absorbing spring is clamped between the mounting plate and the roller mounting seat.

[0010] Preferably, a plurality of arc-shaped claws are welded to the bottom of the roller mounting seat, and the claws are in contact with the outer wall of the ball.

[0011] Preferably, the claw is an elastic metal claw, and the bottom of the claw is in elastic contact with the ball.

[0012] The utility model provides a wheel for a suitcase with a brake function, which has the following beneficial effects:

[0013] 1. Using ball bearings instead of traditional wheels, it can adapt to various terrains and has the advantage of wide application range;

[0014] 2. A rotatable roller mounting seat is set. When the box is parked vertically, the mounting plate moves downward due to the weight of the box, and the wear-resistant rubber sleeve is close to the ball bearing. At this time, the box cannot be easily moved and has a braking function. When the box needs to be moved, pull the pull rod of the box. At this time, the mounting plate rotates, the wear-resistant rubber sleeve separates from the ball bearing, and the brake state is released. The entire brake structure is relatively simple, which can effectively prevent the trolley case from moving when parked and has good braking performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a side view of a wheel for a trolley case with a braking function proposed in the present invention;

[0016] Figure 2 This is an axonometric view of a wheel for a trolley case with a braking function proposed in the present invention;

[0017] Figure 3 This is a top view of a wheel for a trolley case with a braking function proposed in the present invention;

[0018] Figure 4 This is a schematic diagram of the bottom structure of a mounting plate for a wheel with a brake function for a trolley case proposed in the present invention;

[0019] Figure 5 This is a schematic structural diagram of a roller mounting seat for a trolley case wheel with a braking function proposed by the present invention.

[0020] In the figure: 1 mounting plate, 2 bushing, 3 mounting hole, 4 rotating shaft, 5 roller mounting seat, 6 rotating plate, 7 positioning groove, 8 positioning rod, 9 claw, 10 ball bearing, 11 hinge, 12 clamping plate, 13 shock-absorbing spring, 14 slide groove, 15 wear-resistant rubber sleeve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1 、 2 A wheel for a trolley case with a braking function includes a mounting plate 1, mounting holes 3 are evenly opened at the four corners of the outer wall of the mounting plate 1, screws are screwed into the bottom of the trolley case through the mounting holes 3, a shaft sleeve 2 is welded to the side wall of the mounting plate 1, a rotating shaft 4 is rotatably set in the shaft sleeve 2, a rotating plate 6 is welded on the rotating shaft 4, a roller mounting seat 5 is set in the middle of the rotating plate 6, a ball 10 is rolled in the roller mounting seat 5, and the top of the ball 10 is in contact with the mounting plate 1.

[0023] Reference Figure 4 A slide groove 14 is provided at the bottom of the mounting plate 1, and a wear-resistant rubber sleeve 15 is bonded to the inner cavity of the slide groove 14. The wear-resistant rubber sleeve 15 is in contact with the ball 10. The wear-resistant rubber sleeve 15 increases friction, so that when the trolley case is parked vertically, the ball 10 will not roll easily, thereby realizing the braking function. A pair of positioning grooves 7 are provided on the outer wall of the roller mounting seat 5, and a pair of positioning rods 8 are provided at the bottom of the mounting plate 1, and the positioning rods 8 pass through the positioning grooves 7.

[0024] Reference Figure 2 A hinge 11 is provided at the bottom of the positioning rod 8, and the positioning rod 8 is connected to the clamping plate 12 by rotating through the hinge 11. A shock-absorbing spring 13 is sleeved on the outer wall of the positioning rod 8, and the shock-absorbing spring 13 plays a role of shock absorption. The shock-absorbing spring 13 is clamped between the mounting plate 1 and the roller mounting seat 5.

[0025] Reference Figure 5 The bottom of the roller mounting seat 5 is welded with multiple arc-shaped claws 9, which are in contact with the outer wall of the ball 10. The claws 9 are elastic metal claws. On the one hand, the claws 9 prevent the ball 10 from falling off the roller mounting seat 5, and on the other hand, they can scrape off the dirt adhering to the surface of the ball 10 so that the ball 10 can roll smoothly. The bottom of the claws 9 is in elastic contact with the ball 10.

[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wheel for a trolley case with a brake function, comprising a mounting plate (1), wherein mounting holes (3) are evenly formed at four corners of the outer wall of the mounting plate (1), and screws are screwed into the bottom of the trolley case through the mounting holes (3), characterized in that: A shaft sleeve (2) is welded to the side wall of the mounting plate (1), a rotating shaft (4) is rotatably arranged in the shaft sleeve (2), a rotating plate (6) is welded on the rotating shaft (4), a roller mounting seat (5) is arranged in the middle of the rotating plate (6), a ball (10) is rotatably arranged in the roller mounting seat (5), and the top of the ball (10) contacts the mounting plate (1).

2. The wheel for a suitcase with a brake function according to claim 1, characterized in that: A slide groove (14) is provided at the bottom of the mounting plate (1), a wear-resistant rubber sleeve (15) is bonded into the inner cavity of the slide groove (14), and the wear-resistant rubber sleeve (15) is in contact with the ball (10).

3. The wheel for a suitcase with a brake function according to claim 1, characterized in that: A pair of positioning grooves (7) are provided on the outer wall of the roller mounting seat (5), and a pair of positioning rods (8) are provided on the bottom of the mounting plate (1), wherein the positioning rods (8) pass through the positioning grooves (7).

4. The wheel for a suitcase with a brake function according to claim 3, characterized in that: A hinge (11) is provided at the bottom of the positioning rod (8), and the positioning rod (8) is rotatably connected to the clamping plate (12) via the hinge (11).

5. The wheel for a suitcase with a brake function according to claim 3, characterized in that: A shock-absorbing spring (13) is sleeved on the outer wall of the positioning rod (8), and the shock-absorbing spring (13) is clamped between the mounting plate (1) and the roller mounting seat (5).

6. The wheel for a suitcase with a brake function according to claim 1, characterized in that: A plurality of arc-shaped claws (9) are welded to the bottom of the roller mounting seat (5), and the claws (9) are in contact with the outer wall of the ball (10).

7. The wheel for a suitcase with a brake function according to claim 6, characterized in that: The claw (9) is an elastic metal claw, and the bottom of the claw (9) is in elastic contact with the ball (10).

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