Silent suitcase roller
By introducing cushioning and noise-reducing wheel sleeves, sound-absorbing cotton filling layers, and rotating sealing mechanisms into the suitcase wheels, the noise and wear problems during use are solved, achieving quiet and stable operation and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING HUASHENG PLASTIC CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-04-17
AI Technical Summary
Existing suitcase wheels are prone to generating noise during use, especially when the wheel sleeve slides quickly on the ground. Furthermore, the connection between the wheel hub and the bracket is susceptible to noise and wear due to wear or foreign objects entering the connection.
The structure is designed with features such as a buffer noise reduction wheel sleeve, a sound-absorbing cotton filling layer, a rotating sealing mechanism, and a lubricating oil filling layer. This design buffers and reduces sliding noise, prevents foreign objects from entering, reduces friction and wear, and enhances connection stability.
It effectively reduces noise during the use of the wheels, extends the lifespan of the wheels, and improves the quietness and user experience of the suitcase.
Smart Images
Figure CN224130799U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roller technology, specifically to a silent suitcase roller device. Background Technology
[0002] Suitcase wheels are components installed on the bottom of a suitcase to assist in its movement. These include omnidirectional wheels, which can rotate freely 360 degrees, allowing the suitcase to easily change direction during movement and making operation more flexible and convenient.
[0003] Existing suitcase wheels are prone to generating noise during rapid sliding between the roller sleeve and the ground. They lack sufficient elasticity and damping characteristics, failing to effectively buffer the impact force generated when in contact with the ground, leading to high-frequency noise. Furthermore, the connection between the wheel hub and the rotating bracket is also a major source of noise. During suitcase use, the frequent relative rotation between the wheel hub and the rotating shaft generates noise due to various factors. Firstly, the connection between the wheel hub and the rotating bracket wears down due to long-term rotational friction, causing jamming and shaking during rotation, resulting in mechanical friction noise. Secondly, excessive gaps at the connection between the wheel hub and the rotating bracket allow dust and dirt to accumulate, leading to uneven rotation and additional noise, seriously affecting the overall quality of the suitcase and the user experience. Utility Model Content
[0004] In view of the problems existing in the current silent suitcase wheels, this utility model is proposed.
[0005] Therefore, the purpose of this utility model is to provide a silent suitcase roller, which solves the problem that existing suitcase rollers are prone to noise when the wheel sleeve slides quickly on the ground during use, and that the hub and bracket rotation connection is prone to noise due to wear or foreign objects entering.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A silent suitcase wheel includes a mounting plate, a sealing rotating sleeve fixedly connected to the bottom of the mounting plate, a first support shaft rotatably connected inside the cavity of the sealing rotating sleeve, a first rotating sealing mechanism provided between the sealing rotating sleeve and the first support shaft, a U-shaped support plate fixedly connected to the bottom of the first support shaft, support rods fixedly connected to the inner sidewalls of both ends of the U-shaped support plate, and a second support shaft fixedly connected between the sidewalls of the support rods at both ends.
[0008] A hub is rotatably connected to the outer wall of the second support shaft. A second rotating sealing mechanism is provided between the support rods at both ends and the side wall of the hub. A buffer noise-reducing wheel sleeve is fixedly connected to the outer wall of the hub. Honeycomb sound-absorbing grooves are opened on the side walls at both ends of the hub. A plurality of second rotating balls are rotatably connected to the outer wall of the second support shaft. A second rotating groove is opened on the inner side wall of the hub. The plurality of second rotating balls are rotatably connected to the second rotating groove. A first lubricating oil filling layer is provided between the second support shaft and the hub. A first sound-absorbing cotton filling layer is provided inside the cavity of the hub.
[0009] Preferably, the first rotating sealing mechanism includes a support ball, a second rotating ball, a positioning port, a second positioning groove, and a second lubricating oil filling layer. The top of the first support shaft is rotatably connected to the support ball, and a plurality of second rotating balls are rotatably connected to the side wall of the first support shaft. The top of the cavity of the sealing rotating sleeve is provided with a positioning port, and the side wall of the cavity of the sealing rotating sleeve is provided with a second positioning groove. The support ball is rotatably connected to the positioning port, and the plurality of second rotating balls are rotatably connected to the second positioning groove. A second lubricating oil filling layer is provided between the sealing rotating sleeve and the first support shaft.
[0010] Preferably, the second rotating sealing mechanism includes a side support plate, a third rotating ball, a limiting rotating groove, and a sealing ring. The side support plate is fixedly connected to the wall of the support rod at both ends. Multiple third rotating balls are rotatably connected to the side wall surface of the side support plate at both ends. A limiting rotating groove is formed on the outer wall of the side support plate at both ends. A sealing ring is fixedly connected to the side wall at both ends of the hub. The inner side wall of the sealing ring at both ends is rotatably connected to the limiting rotating groove.
[0011] Preferably, the buffer noise reduction wheel sleeve includes a rubber wear-resistant layer, and a noise reduction foam layer is fixedly connected to the inner wall of the rubber wear-resistant layer. Wear-resistant grooves are formed on the surface of the rubber wear-resistant layer.
[0012] Furthermore, a second sound-absorbing cotton filling layer is provided inside the cavity of both the U-shaped support plate and the second support shaft.
[0013] Preferably, a sound-absorbing pad is fixedly connected to the surface of the mounting plate, and corresponding mounting holes are provided at both ends of the surfaces of the mounting plate and the sound-absorbing pad.
[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0015] 1. This utility model utilizes a buffer noise-reducing wheel sleeve installed on the outer wall of the wheel hub. Its rubber wear-resistant layer contacts the ground, and together with the inner noise-reducing foam layer, it effectively alleviates sliding impact and absorbs noise. The first sound-absorbing cotton filling layer installed in the wheel hub cavity and the second sound-absorbing cotton filling layer installed in the U-shaped support plate and the second support shaft cavity further absorb noise and reduce its propagation. The sound-absorbing pad installed on the surface of the mounting plate can reduce the noise generated at the connection between the roller and the case, comprehensively improving the quietness of the suitcase and solving the problem of loud noise from traditional rollers.
[0016] 2. This utility model utilizes a first rotating sealing mechanism and a second rotating sealing mechanism to effectively protect the rotating connection points between the sealing rotating sleeve and the first support shaft, and between the support rod and the wheel hub, respectively. The gaps are filled by the second lubricating oil filling layer and the first lubricating oil filling layer to form a sealing barrier, blocking impurities from entering and reducing friction and wear. The side support plate, sealing ring, and other structures work together to prevent foreign objects from entering the rotating connection points between the wheel hub and the bracket, reducing wear, extending the service life of the roller, and ensuring stable operation of the rotating connection points.
[0017] 3. This utility model utilizes mounting holes on the surface of the mounting plate to facilitate installation and fixation with the enclosure. The operation is simple and efficient. The sound-absorbing pads not only reinforce the connection during installation and enhance connection stability, but also prevent noise caused by vibration after installation, thus solving the problems of inconvenient installation of traditional rollers and noise generation at the connection. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a front sectional view of the present invention;
[0021] Figure 3 This is a three-dimensional schematic diagram of the buffer noise reduction wheel sleeve of this utility model;
[0022] Figure 4 This is a three-dimensional schematic diagram of the second rotating sealing mechanism of this utility model;
[0023] Figure 5 For the present utility model Figure 2 Enlarged schematic diagram of part A.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Mounting plate; 2. Sealing rotating sleeve; 3. First support shaft; 4. U-shaped support plate; 5. Support rod; 6. Second support shaft; 7. Wheel hub; 8. Buffer noise reduction wheel sleeve; 9. Honeycomb sound-absorbing groove; 10. Second rotating ball; 11. Second rotating groove; 12. First lubricating oil filling layer; 13. First sound-absorbing cotton filling layer; 14. Support ball; 15. Second rotating ball; 16. Positioning port; 17. Second positioning groove; 18. Second lubricating oil filling layer; 19. Side support plate; 20. Third rotating ball; 21. Limiting rotating groove; 22. Sealing ring; 23. Rubber wear-resistant layer; 24. Noise-reducing foam layer; 25. Wear-resistant groove; 26. Second sound-absorbing cotton filling layer; 27. Sound-absorbing pad; 28. Mounting port. Detailed Implementation
[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0027] This utility model discloses a silent suitcase wheel.
[0028] This utility model provides, for example Figure 1-5 The silent suitcase roller shown includes a mounting plate 1, a sealing rotating sleeve 2 fixedly connected to the bottom of the mounting plate 1, a first support shaft 3 rotatably connected inside the cavity of the sealing rotating sleeve 2, a first rotating sealing mechanism provided between the sealing rotating sleeve 2 and the first support shaft 3, a U-shaped support plate 4 fixedly connected to the bottom of the first support shaft 3, support rods 5 fixedly connected to the inner side walls of both ends of the U-shaped support plate 4, and a second support shaft 6 fixedly connected between the side walls of the two end support rods 5.
[0029] A hub 7 is rotatably connected to the outer wall of the second support shaft 6. A second rotational sealing mechanism is provided between the end support rods 5 and the side walls of the hub 7. A buffer noise-reducing wheel sleeve 8 is fixedly connected to the outer wall of the hub 7. Honeycomb sound-absorbing grooves 9 are opened on the side walls of the two ends of the hub 7. Multiple second rotational balls 10 are rotatably connected to the outer wall of the second support shaft 6. A second rotational groove 11 is opened on the inner side wall of the hub 7. The multiple second rotational balls 10 are rotatably connected to the second rotational groove 11. A first lubricating oil filling layer 12 is provided between the second support shaft 6 and the hub 7. A first sound-absorbing cotton filling layer 13 is provided inside the cavity of the hub 7. By using the buffer noise-reducing wheel sleeve 8 fixedly connected to the outer wall of the hub 7, the impact force when the wheel sleeve slides quickly with the ground is effectively reduced, and noise generation is reduced. The first sound-absorbing cotton filling layer 13 provided inside the cavity of the hub 7 can absorb the noise generated by the friction between the wheel sleeve and the ground, further reducing noise transmission and improving the performance of the suitcase. The quiet operation is achieved by utilizing a second rotating sealing mechanism between the support rods 5 at both ends and the side wall of the hub 7, which effectively prevents foreign objects from entering and reduces wear and noise caused by foreign object intrusion. Multiple second rotating balls 10 are rotatably connected to the outer wall of the second support shaft 6, which cooperate with the second rotating groove 11 on the inner side wall of the hub 7 to reduce rotational friction and noise caused by wear. At the same time, the first lubricating oil filling layer 12 between the second support shaft 6 and the hub 7 can not only lubricate the rotating parts and reduce friction and wear, but also assist in sealing to prevent foreign objects from entering. This comprehensively ensures the stable operation of the rotating connection, reduces noise generation, and extends the service life of the roller. This solves the problem that existing suitcase rollers are prone to noise during rapid sliding of the wheel sleeve on the ground, and that the rotating connection between the hub and the bracket is prone to noise due to wear or foreign objects entering.
[0030] In order to achieve a sealing effect between the sealing rotating sleeve 2 and the first support shaft 3 without affecting rotation, such as Figure 1 and 2As shown, the first rotating sealing mechanism includes a supporting ball 14, a second rotating ball 15, a positioning port 16, a second positioning groove 17, and a second lubricating oil filling layer 18. The top of the first supporting shaft 3 is rotatably connected to the supporting ball 14, and multiple second rotating balls 15 are rotatably connected to the side wall of the first supporting shaft 3. A positioning port 16 is provided at the top of the cavity of the sealing rotating sleeve 2, and a second positioning groove 17 is provided on the side wall of the cavity of the sealing rotating sleeve 2. The supporting ball 14 is rotatably connected to the positioning port 16, and multiple second rotating balls 15 are rotatably connected to the second positioning groove 17. A second lubricating oil filling layer 18 is provided between the sealing rotating sleeve 2 and the first supporting shaft 3. The sealing mechanism utilizes the positioning port 16 provided at the top of the first supporting shaft 3 and the positioning port 16 of the sealing rotating sleeve 2. The 6-axis assembly connects multiple second rotating balls 15 on the sidewall of the shaft to the second positioning groove 17 of the sealing rotating sleeve 2. The multiple ball bearings greatly reduce the rotational friction between the first support shaft 3 and the sealing rotating sleeve 2, allowing the first support shaft 3 to rotate smoothly and providing a foundation for efficient equipment operation. The second lubricating oil filling layer 18 between the sealing rotating sleeve 2 and the first support shaft 3 not only fills the gap to form a sealing barrier, preventing impurities from entering and protecting internal components, but also reduces the coefficient of friction and wear. At the same time, the engagement of the positioning port 16 with the support balls 14 and the second positioning groove 17 with the second rotating balls 15 strengthens the seal structurally, thereby achieving a sealing effect between the sealing rotating sleeve 2 and the first support shaft 3 without affecting rotation.
[0031] To achieve a seal between the support rod 5 and the hub 7 without affecting rotation, such as Figure 2 , 3As shown in Figure 5, the second rotary sealing mechanism includes a side support plate 19, third rotary balls 20, a limiting rotary groove 21, and a sealing ring 22. The side support plate 19 is fixedly connected to the rod walls of the two end support rods 5. Multiple third rotary balls 20 are rotatably connected to the side wall surfaces of the two end side support plates 19. The outer walls of the two end side support plates 19 are provided with limiting rotary grooves 21. The sealing rings 22 are fixedly connected to the side walls of the two end hubs 7. The inner side walls of the sealing rings 22 are rotatably connected to the limiting rotary grooves 21. By using the second rotary sealing mechanism composed of the side support plate 19, third rotary balls 20, limiting rotary grooves 21, and sealing rings 22, the side support plate 19 is fixed to the rod walls of the two end support rods 5. This provides a stable support base for the entire sealing mechanism. Multiple third rotating balls 20 are rotatably connected to the side wall surface of the side support plate 19, reducing friction during rotation and ensuring that the hub 7 can rotate smoothly. This ensures that the suitcase wheels can rotate flexibly during use. The limiting rotation grooves 21 opened on the outer walls of the two side support plates 19 are rotatably connected to the inner walls of the sealing rings 22 that are fixedly connected to the side walls of the two ends of the hub 7, forming a reliable sealing structure. This effectively prevents dust, foreign objects, etc. from entering the rotating connection between the hub 7 and the bracket, avoiding increased wear and noise caused by the entry of foreign objects. Thus, a seal is achieved between the support rod 5 and the hub 7 without affecting rotation.
[0032] To achieve wear-resistant and noise-reducing properties for the buffer noise-reducing wheel sleeve 8, such as Figure 1 , 2 As shown in Figure 4, the buffer noise reduction wheel sleeve 8 includes a rubber wear-resistant layer 23, a noise reduction foam layer 24 is fixedly connected to the inner side wall of the rubber wear-resistant layer 23, and wear-resistant grooves 25 are formed on the surface of the rubber wear-resistant layer 23. By using the buffer noise reduction wheel sleeve 8 composed of the rubber wear-resistant layer 23, the noise reduction foam layer 24 and the wear-resistant grooves 25, the rubber wear-resistant layer 23 can achieve basic wear resistance, the noise reduction foam layer 24 can enhance the noise reduction effect, and the wear-resistant grooves 25 can enhance the wear resistance and anti-slip effect.
[0033] To add or remove noise reduction protection to the U-shaped support plate 4 and the second support shaft 6, such as Figure 2 and 5 As shown, a second sound-absorbing cotton filling layer 26 is provided in the cavity of both the U-shaped support plate 4 and the second support shaft 6. The second sound-absorbing cotton filling layer 26 is used to increase or decrease noise reduction protection for the U-shaped support plate 4 and the second support shaft 6.
[0034] To facilitate installation between enclosures and to reduce noise at the joints, such as Figure 1 and 2As shown, a sound-absorbing pad 27 is fixedly connected to the surface of the mounting plate 1. The mounting plate 1 and the sound-absorbing pad 27 have corresponding mounting holes 28 at both ends. The sound-absorbing pad 27 is used to reinforce the connection with the enclosure and prevent noise. The mounting holes 28 are used to facilitate the installation work.
[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A silent travel suitcase roller comprising a mounting plate (1), characterized in that, A sealing rotating sleeve (2) is fixedly connected to the bottom of the mounting plate (1). A first support shaft (3) is rotatably connected inside the cavity of the sealing rotating sleeve (2). A first rotating sealing mechanism is provided between the sealing rotating sleeve (2) and the first support shaft (3). A U-shaped support plate (4) is fixedly connected to the bottom of the first support shaft (3). Support rods (5) are fixedly connected to the inner side walls of both ends of the U-shaped support plate (4). A second support shaft (6) is fixedly connected between the side walls of the support rods (5) at both ends. A hub (7) is rotatably connected to the outer wall of the second support shaft (6). A second rotating sealing mechanism is provided between the support rods (5) at both ends and the side walls of the hub (7). A buffer noise reduction wheel sleeve (8) is fixedly connected to the outer wall of the hub (7). A honeycomb sound-absorbing groove (9) is opened on the side walls at both ends of the hub (7). A plurality of second rotating balls (10) are rotatably connected to the outer wall of the second support shaft (6). A second rotating groove (11) is opened on the inner side wall of the hub (7). The plurality of second rotating balls (10) are rotatably connected to the second rotating groove (11). A first lubricating oil filling layer (12) is provided between the second support shaft (6) and the hub (7). A first sound-absorbing cotton filling layer (13) is provided in the cavity of the hub (7).
2. The silent suitcase wheel according to claim 1, characterized in that, The first rotating sealing mechanism includes a support ball (14), a second rotating ball (15), a positioning port (16), a second positioning groove (17), and a second lubricating oil filling layer (18). The top of the first support shaft (3) is rotatably connected to the support ball (14), and a plurality of second rotating balls (15) are rotatably connected to the side wall of the first support shaft (3). The top of the cavity of the sealing rotating sleeve (2) is provided with a positioning port (16), and the side wall of the cavity of the sealing rotating sleeve (2) is provided with a second positioning groove (17). The support ball (14) is rotatably connected to the positioning port (16), and the plurality of second rotating balls (15) are rotatably connected to the second positioning groove (17). A second lubricating oil filling layer (18) is provided between the sealing rotating sleeve (2) and the first support shaft (3).
3. The silent rolling luggage of claim 1, wherein, The second rotating sealing mechanism includes a side support plate (19), a third rotating ball (20), a limiting rotating groove (21), and a sealing ring (22). The side support plate (19) is fixedly connected to the wall of the support rod (5) at both ends. Multiple third rotating balls (20) are rotatably connected to the side wall surface of the side support plate (19) at both ends. The outer wall of the side support plate (19) at both ends is provided with a limiting rotating groove (21). The sealing ring (22) is fixedly connected to the side wall of the hub (7) at both ends. The inner side wall of the sealing ring (22) at both ends is rotatably connected to the limiting rotating groove (21).
4. The silent rolling luggage of claim 1, wherein, The buffer noise reduction wheel sleeve (8) includes a rubber wear-resistant layer (23), and a noise reduction foam layer (24) is fixedly connected to the inner side wall of the rubber wear-resistant layer (23). Wear-resistant grooves (25) are opened on the surface of the rubber wear-resistant layer (23).
5. The silent rolling luggage of claim 1, wherein, The cavity of the U-shaped support plate (4) and the second support shaft (6) is provided with a second sound-absorbing cotton filling layer (26).
6. The silent rolling luggage of claim 1, wherein, The surface of the mounting plate (1) is fixedly connected with sound-absorbing pads (27), and corresponding mounting holes (28) are arranged at both ends of the surface of the mounting plate (1) and the sound-absorbing pads (27).