Rotating shaft of anti-bending structure and luggage wheel thereof

Abstract

The utility model discloses a rotating shaft of an anti-bending structure and a luggage wheel thereof, and relates to the technical field of luggage wheels, the rotating shaft comprises a connecting plate and wheel bodies, the wheel bodies are rotatably arranged on two sides of a wheel carrier, the bottom of the connecting plate is fixedly provided with a connecting column, the bottom of the connecting column is fixedly provided with a shaft body, and the diameter of the connecting column is larger than that of the shaft body. A rotating groove is formed in the middle of the wheel carrier, the shaft body is matched with the rotating groove and penetrates through the rotating groove, a limiting block is arranged on the peripheral side of the end, close to the connecting plate, of the connecting column, reinforcing ribs are arranged on the peripheral side of the connecting position of the top of the shaft body and the connecting column in a surrounding array mode, the shaft body is sleeved with a buffering piece, and the two ends of the buffering piece make contact with the connecting plate and the wheel carrier respectively. According to the rotating shaft, the connecting columns are arranged, when the rotating shaft is stressed, the thick connecting columns can bear larger bending moment, meanwhile, the buffering pieces can absorb and buffer part of impact force, force directly acting on the shaft body is reduced, and therefore the bending resistance of the whole rotating shaft is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of luggage wheels, in particular to a rotating shaft with an anti-bending structure and a luggage wheel thereof. Background Art

[0002] A luggage wheel typically consists of a wheel body, hub, bearings, and a rotating shaft. The wheel body, typically made of elastic and wear-resistant materials like rubber or plastic, directly contacts the ground, providing rolling support. The hub connects the wheel body to the rotating shaft, securing and supporting the wheel body. The bearing, installed within the hub, allows the wheel body to rotate smoothly relative to the rotating shaft, reducing friction. The rotating shaft is the core supporting component of the entire luggage wheel, connecting the wheel to the luggage body, bearing the weight of the luggage and its contents, and transmitting various forces during movement.

[0003] When a bag is placed on the ground or lifted, its entire weight is transferred to the ground through the wheel's shaft. If the shaft's bending resistance is insufficient, it may be unable to withstand the immense pressure and deform under heavy luggage conditions, causing the wheel to lose its ability to rotate properly and even rendering the bag unable to stand or move properly.

[0004] At the same time, when the luggage is dropped, it will be subjected to a large impact force, which will be transmitted to the shaft through the wheel body. If the shaft cannot effectively resist this impact force, it will easily bend, which will also affect the service life of the luggage wheel and the normal use of the luggage. Utility Model Content

[0005] In view of the deficiencies of the prior art, the present invention provides a rotating shaft with an anti-bending structure and a luggage wheel thereof, which solves the problem in the background art that the rotating shaft bends and deforms when impacted, causing the luggage wheel to lose its normal rotation function.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a rotating shaft with an anti-bending structure and its luggage wheel, including a connecting plate and a wheel body, the wheel body is rotatably arranged on both sides of the wheel frame, a connecting column is fixedly installed at the bottom of the connecting plate, and a shaft body is fixedly installed at the bottom of the connecting column, the diameter of the connecting column is larger than the diameter of the shaft body, a rotation groove is opened in the middle of the wheel frame, the shaft body is adapted to the rotation groove and passes through the rotation groove, a limiting block is provided on the peripheral side of one end of the connecting column close to the connecting plate, and reinforcing ribs are provided in an array around the connection between the top of the shaft body and the connecting column, a buffer is provided on the outer side of the shaft body, and the two ends of the buffer are respectively in contact with the connecting plate and the wheel frame.

[0007] Preferably, a placement plate is provided at both ends of the buffer, the placement plate at the top of the buffer is provided with a mounting groove, the mounting groove is adapted to the connecting column and the limit block, the placement plate at the bottom of the buffer is provided with a through hole, the through hole is adapted to the shaft, and the placement plates at both ends of the buffer are connected by a spring.

[0008] Preferably, a spiral pattern is provided on the circumferential side of the bottom of the shaft body, and the spiral pattern is spirally connected to the nut.

[0009] Preferably, a notch is provided at the bottom of the shaft body, and two sets of symmetrical limiting rods are rotatably connected inside the notch, and anti-slip grooves are provided on the inner sides of the limiting rods.

[0010] Preferably, an inner cavity is opened in the wheel frame, the rotation groove is arranged at the top of the inner cavity, and balls are embedded in the top and bottom circumferences of the rotation groove.

[0011] The utility model provides a rotating shaft with an anti-bending structure and a luggage wheel thereof, which has the following beneficial effects:

[0012] (1) The present invention provides a connecting column. When subjected to force, the thicker connecting column can withstand a larger bending moment. At the same time, the buffer can absorb and buffer part of the impact force, reducing the force directly acting on the shaft body, thereby improving the bending resistance of the entire shaft.

[0013] (2) The present invention achieves the limiting and fixing of the wheel frame by the cooperation connection between the limiting rod and the nut. The structure is simple and easy to disassemble, which can facilitate the operator to replace the parts of the luggage wheel.

[0014] This solves the problem that the rotating shaft bends and deforms when subjected to impact, causing the luggage wheels to lose their normal rotation function. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a diagram showing the overall structure of the utility model;

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

[0017] Figure 3 For this utility model Figure 2 Structural diagram of the middle connecting plate and buffer;

[0018] Figure 4 For this utility model Figure 1 Structural display diagram of the middle wheel frame;

[0019] Figure 5 For this utility model Figure 3 Enlarged schematic diagram of part A.

[0020] In the figure, 1. connecting plate; 11. connecting column; 12. limiting block; 13. reinforcing rib; 14. shaft; 15. spiral pattern; 151. notch; 152. limiting rod; 2. wheel body; 3. wheel frame; 31. inner cavity; 32. rotating groove; 33. ball; 4. buffer; 41. placement plate; 42. spring; 43. mounting groove; 44. through hole; 5. nut. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figure 1-Figure 5 , a rotating shaft with an anti-bending structure and its luggage wheel, including a connecting plate 1 and a wheel body 2, the wheel body 2 is rotatably arranged on both sides of the wheel frame 3, a connecting column 11 is fixedly installed at the bottom of the connecting plate 1, and a shaft 14 is fixedly installed at the bottom of the connecting column 11, the diameter of the connecting column 11 is larger than the diameter of the shaft 14, a rotating groove 32 is opened in the middle of the wheel frame 3, the shaft 14 is adapted to the rotating groove 32 and passes through the rotating groove 32, a limiting block 12 is provided on the peripheral side of one end of the connecting column 11 close to the connecting plate 1, and a reinforcing rib 13 is arranged on the peripheral side of the connection between the top of the shaft 14 and the connecting column 11, and a buffer member 4 is sleeved on the outside of the shaft body 14, and the two ends of the buffer member 4 are in contact with the connecting plate 1 and the wheel frame 3 respectively;

[0023] A placement plate 41 is provided at both ends of the buffer 4. The placement plate 41 at the top of the buffer 4 is provided with a mounting groove 43, which is adapted to the connecting column 11 and the limit block 12. The placement plate 41 at the bottom of the buffer 4 is provided with a through hole 44, which is adapted to the shaft 14. The placement plates 41 at both ends of the buffer 4 are connected by a spring 42.

[0024] The ribs 13 of the connecting rod 11 are arranged around the connecting rod 11, which can reduce the stress concentration at the connection of the shaft 14 and the bending force at this location.

[0025] The ends of the buffer 4 contact the connecting plate 1 and the wheel frame 3, respectively. The placement plates 41 at both ends are connected by springs 42. When impacted, the springs 42 compress, absorbing and buffering some of the energy generated by the impact. The buffer 4 disperses and cushions the strong impact force that would otherwise act directly on the connection, reducing the peak instantaneous bending force experienced by the connection.

[0026] The limit block 12 is adapted to the mounting groove 43 of the plate 41 placed on the top of the buffer 4, so that when the luggage wheel is rotating or subjected to external force, the buffer 4 cannot rotate freely around the connecting column 11 due to the obstruction of the limit block 12, thereby ensuring that the buffer 4 is always in the correct position and maintains its normal buffering function and force transmission path.

[0027] Example 2: To achieve convenient disassembly and installation of luggage wheel components, please refer to Figure 1-Figure 5 On the basis of Example 1, a spiral pattern 15 is provided on the bottom circumference of the shaft 14, and the spiral pattern 15 is spirally connected to the nut 5;

[0028] The bottom of the shaft body 14 is provided with a notch 151, and two sets of symmetrical limiting rods 152 are rotatably connected inside the notch 151. The inner side of the limiting rods 152 is provided with anti-slip grooves;

[0029] An inner cavity 31 is defined inside the wheel frame 3 , a rotation groove 32 is provided at the top of the inner cavity 31 , and balls 33 are embedded in the top and bottom circumferences of the rotation groove 32 .

[0030] Specifically, when installing the luggage wheel, fix the connecting plate 1 to the bottom of the luggage, and align the mounting groove 43 in the buffer 4 with the limit block 12, so that the buffer 4 is connected to the connecting plate 1 and the limit block 12, and at the same time, the shaft 14 is forced to pass through the through hole 44, and then the rotating groove 32 on the wheel frame 3 is aligned with the shaft 14, so that the notch 151 on the shaft 14 can pass through the rotating groove 32. At this time, the ball 33 on the top peripheral side of the rotating groove 32 contacts the bottom placement plate 41 of the buffer 4. After that, the operator controls the limit inside the notch 151. The rod 152 rotates and opens to restrict the wheel frame 3, preventing the wheel frame 3 from detaching from the shaft body 14. The nut 5 is adapted to the spiral pattern 15, so that the nut 5 can be screwed onto the shaft body 14. At the same time, the nut 5 restricts the limiting rod 152, so that the limiting rod 152 is always in an extended state. The anti-slip pattern on the limiting rod 152 contacts the nut 5. Compared with simply tightening the nut 5, it can effectively prevent the nut 5 from loosening due to vibration, collision, etc., further enhancing the stability of the luggage wheel in complex use environments.

[0031] During disassembly, the operator uses a tool to remove the nut 5 and rotates the limiting rod 152 back into the notch 151, so that the wheel frame 3 can be removed from the shaft 14. After the wheel frame 3 is removed, the operator can control the buffer member 4 to separate from the connecting plate 1 to complete the disassembly of the luggage wheel.

[0032] Balls 33 are embedded around the top and bottom of the rotating groove 32. The rolling friction coefficient of the balls 33 is much smaller than the sliding friction coefficient, which can significantly reduce the friction resistance between the wheel frame 3 and the placement plate 41 and the limiting rod 152, thereby improving the rotation efficiency of the wheel frame 3 and making the rotation of the wheel frame 3 smoother. At the same time, it reduces the wear between the wheel frame 3 and other components, thereby extending the service life of the luggage wheel.

[0033] Working Principle: When a luggage wheel is impacted, the connection between the connecting plate 1 and the shaft 14 is susceptible to significant bending forces. The variable diameter structure of the connecting post 11 disperses the force from the connecting plate 1, reducing stress concentration at the connection with the shaft 14. The stopper 12 increases the connection area, making the connection between the connecting post 11 and the connecting plate 1 more stable and less prone to deformation by withstanding greater external forces. The reinforcing rib 13 strengthens the connection between the shaft 14 and the connecting post 11, preventing bending at the connection between the shaft 14 and the connecting post 11.

[0034] When installing the luggage wheels, first secure the connecting plate 1 to the bottom of the luggage. Align the mounting slot 43 of the buffer 4 with the stopper 12 to install the buffer 4. Pass the shaft 14 through the through-hole 44 of the mounting plate 41 at the bottom of the buffer 4. Align the rotation slot 32 of the wheel frame 3 with the shaft 14, allowing the notch 151 of the shaft 14 to pass through the rotation slot 32. Next, open the stopper 152 in the notch 151 of the shaft 14 to restrain the wheel frame 3. Then, screw the nut 5 onto the helical groove 15 of the shaft 14. The nut 5 restrains the stopper 152 to keep it in the expanded state, thereby preventing the wheel frame 3 from separating from the shaft 14. Installation is complete.

[0035] When disassembling the luggage wheel, first remove the nut 5 with a tool, then rotate the limiting rod 152 back into the notch 151, so that the wheel frame 3 can be removed from the shaft body 14. After the wheel frame 3 is removed, the buffer member 4 can be separated from the connecting plate 1 to complete the disassembly.

[0036] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious 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 characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 methods that can be understood by those skilled in the art.

Claims

1. A rotating shaft with an anti-bending structure and a luggage wheel thereof, comprising a connecting plate (1) and a wheel body (2), characterized in that: The wheel body (2) is rotatably arranged on both sides of the wheel frame (3); a connecting column (11) is fixedly installed at the bottom of the connecting plate (1); a shaft (14) is fixedly installed at the bottom of the connecting column (11); the diameter of the connecting column (11) is larger than the diameter of the shaft (14); a rotation groove (32) is opened in the middle of the wheel frame (3); the shaft (14) is adapted to the rotation groove (32) and passes through the rotation groove (32); a limiting block (12) is provided on the peripheral side of one end of the connecting column (11) close to the connecting plate (1); a reinforcing rib (13) is provided in an array around the connection between the top of the shaft (14) and the connecting column (11); a buffer member (4) is sleeved on the outer side of the shaft (14); the two ends of the buffer member (4) are in contact with the connecting plate (1) and the wheel frame (3) respectively.

2. The rotating shaft with an anti-bending structure and the luggage wheel thereof according to claim 1, characterized in that: Both ends of the buffer (4) are provided with a placement plate (41), the placement plate (41) at the top of the buffer (4) is provided with a mounting groove (43), the mounting groove (43) is adapted to the connecting column (11) and the limit block (12), the placement plate (41) at the bottom of the buffer (4) is provided with a through hole (44), the through hole (44) is adapted to the shaft (14), and the placement plates (41) at both ends of the buffer (4) are connected via a spring (42).

3. The rotating shaft with an anti-bending structure and the luggage wheel thereof according to claim 1, characterized in that: A spiral pattern (15) is provided on the circumferential side of the bottom of the shaft body (14), and the spiral pattern (15) is spirally connected to the nut (5).

4. The rotating shaft with an anti-bending structure and the luggage wheel thereof according to claim 3, characterized in that: A notch (151) is provided at the bottom of the shaft body (14), and two sets of symmetrical limiting rods (152) are rotatably connected inside the notch (151), and anti-slip grooves are provided on the inner sides of the limiting rods (152).

5. The rotating shaft with an anti-bending structure and the luggage wheel thereof according to claim 1, characterized in that: An inner cavity (31) is provided inside the wheel frame (3), the rotation groove (32) is arranged at the top of the inner cavity (31), and balls (33) are embedded in the top and bottom circumferences of the rotation groove (32).

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