Compact light-weight detachable luggage universal wheel

Abstract

The invention discloses a compact light-weight detachable luggage universal wheel which comprises a luggage body, a wheel carrier module and a wheel shell module are arranged at the bottom of the luggage body, the wheel carrier module comprises a wheel carrier, a transverse shaft rivet is arranged in the wheel carrier and penetrates through a transverse shaft hole of the wheel carrier, a gasket is arranged at the top end of the rivet to prevent falling off, and a vertical shaft rivet is arranged in a vertical shaft rivet hole of the wheel carrier. The wheel shell module comprises a wheel shell, a vertical shaft rivet hole of the wheel shell is provided with a rotation stopping face, and the rotation stopping face at the lower end of a vertical shaft rivet is right arranged in the wheel shell. Through cooperation, modularization and independence of the wheel carrier module and the wheel shell module with the luggage, the overall structure is more compact, lightweight design is achieved, the appearance of the wheel shell is reduced as much as possible, the small and exquisite wheel shell can adapt to various luggage body appearances, meanwhile, the wheel carrier and the wheel are small and hollowed out, the effects of saving materials and reducing cost are achieved, and the practicability is high. By reducing the boundary dimension and weight of the case body, the air transportation requirement is met, and daily maintenance of the case is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of injection-molded luggage, and specifically to a compact, lightweight, detachable universal wheel for luggage. Background Art

[0002] Luggage is a general term for various bags used to hold things, including handbags, backpacks, and various rolling suitcases. With the increase in the number of people traveling, luggage, as a box for carrying items, has become an indispensable commodity. Most rolling suitcases are equipped with universal wheels at the bottom for easy movement. However, during long-term use of luggage, the wheel frames and rollers are damaged relatively frequently, being prone to wear, peeling of the surface skin, and deformation of the wheels, thus affecting the movement of the luggage.

[0003] In traditional luggage, the bottom is connected and fixed to the universal wheel by screws. The universal wheel protrudes at the bottom, occupying a relatively large space, making the overall shape of the luggage appear somewhat bulky, resulting in the inability to assemble the universal wheel into a small-sized airline suitcase, restricting the scope of use of the universal wheel. In addition, some luggage has detachable universal wheels at the bottom, but the structure is complex, occupying a large area, unable to meet the practical concept of compactness and lightweight, affecting the aesthetics of the luggage, and unable to meet the market's pursuit of lightweight luggage. Summary of the Invention

[0004] The purpose of the present invention is to provide a compact, lightweight, detachable universal wheel for luggage to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A compact, lightweight, detachable universal wheel for luggage, including a luggage body. A wheel frame module and a wheel shell module are arranged at the bottom of the luggage body. The wheel frame module includes a wheel frame. A horizontal axis rivet is arranged inside the wheel frame, and the horizontal axis rivet penetrates through the horizontal axis hole of the wheel frame. A gasket is arranged at the top of the rivet to prevent it from coming off. Both ends of the rivet are respectively connected and fixed to the rollers. A vertical axis rivet is arranged in the vertical axis rivet hole of the wheel frame. Heat-resistant and wear-resistant nylon bearings are arranged in both the horizontal axis hole of the wheel frame and the horizontal axis hole of the roller. A wear-resistant gasket is arranged at the top of the vertical axis rivet. The wheel shell module includes a wheel shell. The vertical axis rivet hole of the wheel shell has a rotation-stopping surface. The rotation-stopping surface at the lower end of the vertical axis rivet is correctly placed into the wheel shell, and the upper end of the vertical axis rivet is connected and fixed to the vertical axis hole of the wheel frame. A push button is arranged on the surface of the wheel shell, and the bottom of the push button is fixedly connected to a socket together with a U-shaped clamping plate.

[0006] Preferably, the wheel frame is respectively connected and fixed to the rollers on both sides through horizontal axis rivets. A gasket is arranged at one end of the horizontal axis rivet. Heat-resistant and wear-resistant nylon bearings are arranged in both the horizontal axis hole of the wheel frame and the horizontal axis hole of the roller. A pin rivet is arranged inside the wheel frame, and the pin rivet penetrates through the pin hole inside the wheel frame and the pin slot at the top of the vertical axis rivet for riveting.

[0007] Preferably, the top of the vertical shaft rivet is in contact with the wear-resistant piece in the vertical shaft hole of the wheel frame. An annular groove is provided at the bottom of the vertical shaft rivet. The vertical shaft rivet is inserted and matched with the connecting seat, and the connecting seat is fixedly connected to the surface of the wheel shell.

[0008] Preferably, a sliding groove is provided on the upper surface of the wheel shell. The inside of the sliding groove is slidably connected to the outside of the socket. A threaded groove is provided at the bottom of the socket. The socket is in threaded cooperation with the first mounting screw. The bottom of the socket passes through the sliding groove and is inserted and matched with the button seat.

[0009] Preferably, a spring is provided on one side of the button seat. The spring is located in the space formed by the tail of the button seat and the inner mounting groove of the wheel shell. A relief hole for placing the U-shaped clamping plate is provided on the side surface of the button seat. The U-shaped clamping plate is located at the bottom of the button seat. A mating hole is provided on the surface of the U-shaped clamping plate. The sliding groove passes through the mating hole to connect and fix the U-shaped clamping plate and the socket.

[0010] Preferably, a fixing groove is provided on the surface of the U-shaped clamping plate. The U-shaped clamping plate is clamped and matched with the annular groove through the fixing groove. The annular groove is located at the bottom of the vertical shaft rivet.

[0011] Preferably, the wheel shell is fixedly connected to the rear cover through the second mounting screw. A placement groove is provided at the bottom of the luggage body. Mounting holes are provided on the inner cavity wall of the placement groove. The rear cover is fixedly connected to the luggage body through screws passing through the fixing holes and the mounting holes.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. Through the cooperation of the wheel frame module, the wheel shell module and the luggage, the modularization and independence make the overall structure more compact, realizing lightweight design. By minimizing the shape of the wheel shell as much as possible, the small wheel shell can be adapted to various box shapes. At the same time, the wheel frame and the wheels are small and hollow, which saves materials and reduces costs. The compact and lightweight design can increase the available space inside the box, reduce the external dimensions and weight of the box, thus meeting the requirements of air transportation, facilitating the daily maintenance of the luggage, and making the appearance of the luggage more beautiful, enhancing the actual use effect.

[0014] 2. The first mounting screw connects the U-shaped clamping plate and the socket, and fixes the U-shaped clamping plate inside the push button seat. By moving the push button, the socket is driven to move in the sliding groove, and at the same time, the U-shaped clamping plate is driven to move, and the U-shaped clamping plate is disengaged from the annular groove. Then, the wheel frame module can be directly pulled out, realizing the convenient disassembly of the roller. Similarly, it reduces the difficulty for users to install the roller, improves the convenience of using the luggage, and saves the cost of replacing the roller by replacing the wheel frame module. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 Schematic diagram of the bottom structure of the luggage body of the present invention;

[0017] Figure 3 Schematic diagram of the overall structure of the wheel carrier of the present invention;

[0018] Figure 4 Top view of the structure of the wheel shell and the wheel carrier of the present invention;

[0019] Figure 5 Exploded view of the wheel carrier module structure of the present invention;

[0020] Figure 6 Exploded view of the wheel shell module structure of the present invention;

[0021] Figure 7 Exploded view of the connection structure of the vertical shaft rivet and the U-shaped clamping plate of the present invention.

[0022] In the figure: 1. Luggage body; 101. Placing groove; 102. Installation hole; 2. Wheel carrier; 3. Horizontal shaft rivet; 4. Roller; 5. Gasket; 6. Pin rivet; 7. Wheel shell; 71. Connection seat; 8. Vertical shaft rivet; 81. Annular clamping groove; 9. Wear-resistant sheet; 10. Push button; 11. Socket; 12. Slide groove; 13. First installation screw; 14. Button seat; 15. Spring; 16. U-shaped clamping plate; 1601. Fixed groove; 17. Rear cover; 1701. Fixed hole; 18. Second installation screw. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-3 , the present invention provides a technical solution: a compact and lightweight detachable universal wheel for luggage, including a luggage body 1. A wheel carrier module and a wheel shell module are arranged at the bottom of the luggage body 1. Four symmetric placing grooves 101 are opened at the bottom of the luggage body 1. The placing grooves 101 are cooperatively inserted with the wheel shell 7. The wheel shell 7 is injection-molded. Installation holes 102 are opened inside the placing grooves 101. The luggage body 1 is connected and fixed to the rear cover 17 through screws passing through the installation holes 102. Corresponding and adapted fixed holes 1701 are opened inside the rear cover 17, so as to fix the wheel shell 7 inside the installation holes 102, realizing the connection and fixation between the wheel carrier module and the luggage body 1, with a simple structure and convenient operation.

[0025] Please refer to Figure 2 and Figure 5, the wheel carrier module includes a wheel carrier 2. The wheel carrier 2 and the rollers 4 are designed with hollow structures, which can save materials and reduce costs. A horizontal axis rivet 3 is arranged inside the wheel carrier 2. The horizontal axis rivet 3 passes through both ends of the horizontal axis hole of the wheel carrier 2 and is respectively connected and fixed to the rollers 4. The rollers 4 are symmetrically distributed on both sides of the wheel carrier 2. A gasket 5 is arranged at one end of the horizontal axis rivet 3 to fill the gap between the horizontal axis rivet 3 and the roller 4, thereby avoiding loosening caused by vibration or heavy load. At the same time, the gasket 5 prevents the horizontal axis rivet 3 from loosening. Heat-resistant and wear-resistant nylon bearings are arranged in both the horizontal axis hole of the wheel carrier 2 and the horizontal axis hole of the roller 4.

[0026] A pin rivet 6 is arranged inside the wheel carrier 2. The pin rivet 6 passes through the internal pin hole of the wheel carrier 2 and the pin slot at the top of the vertical axis rivet 8 for riveting. One end of the vertical axis rivet 8 is connected and fixed to the vertical axis hole of the wheel carrier 2. A wear-resistant gasket 9 is arranged at the top of the vertical axis rivet 8. The top of the vertical axis rivet 8 is attached to the wear-resistant sheet 9 inside the vertical axis hole of the wheel carrier 2. One end of the vertical axis rivet 8 is fixed inside the wheel carrier 2 through the pin rivet 6. The structure is simple and convenient for processing and manufacturing. By connecting and fixing the vertical axis rivet 8 to the wheel carrier 2, a wheel carrier module is formed, which can effectively reduce the materials required for disassembly and replacement of the rollers 4, further reduce the replacement cost of the rollers 4, and enhance the actual use effect.

[0027] An annular card slot 81 is opened at the bottom of the vertical axis rivet 8. The annular card slot 81 is located inside the wheel shell 7. A limit ring is arranged on the outside of the vertical axis rivet 8. The upper surface of the wheel shell 7 is fixedly connected to the connecting seat 71. The connecting seat 71 is communicated with the inside of the wheel shell 7. The vertical axis rivet 8 is inserted and matched with the connecting seat 71. The vertical axis rivet 8 is connected and fixed to the connecting seat 71 through the limit ring. A multi-faceted square rod is arranged at the bottom of the vertical axis rivet 8, and a multi-faceted square groove is arranged inside the connecting seat 71. The multi-faceted square rod prevents the vertical axis rivet 8 from rotating inside the connecting seat 71, thereby ensuring the stability of the rollers 4 during multiple repeated rotations in use.

[0028] Please refer to Figure 6 , the wheel shell module includes a wheel shell 7. The vertical axis hole of the wheel shell 7 has an anti-rotation surface. The anti-rotation surface at the lower end of the vertical axis rivet 8 is correctly placed into the wheel shell 7. A push button 10 is arranged on the surface of the wheel shell 7. Anti-slip patterns are arranged on the surface of the push button 10. The bottom of the push button 10 is fixedly connected to the socket 11 together with the U-shaped clamping plate 16. A button seat 14 is arranged inside the wheel shell 7. A jack is opened on the upper surface of the button seat 14, and the jack runs through the button seat 14. The socket 11 is inserted and matched with the button seat 14 through the jack. A U-shaped clamping plate 16 is arranged inside the button seat 14. A relief hole for placing the U-shaped clamping plate 16 is opened on the side surface of the button seat 14. The U-shaped clamping plate 16 is located at the bottom of the button seat 14.

[0029] A chute 12 is formed on the upper surface of the wheel hub 7. The inner part of the chute 12 is slidably connected to the outer side of the socket 11. Thread grooves are formed at the bottom of the socket 11, and the socket 11 is in threaded fit with the first mounting screw 13. A spring 15 is arranged on one side of the button base 14. The spring 15 is located in the space formed by the tail of the button base 14 and the inner mounting groove of the wheel hub 7. The inside of the wheel hub 7 is hollow. The button base 14 is pushed to move by the elastic force of the spring 15, so as to drive the socket 11 to move inside the chute 12. The movement of the socket 11 is limited by the chute 12. The button base 14 is pushed to move by the elastic force of the spring 15, and at the same time, the U-shaped clamping plate 16 is driven to move until the fixing groove 1601 fits against the inner wall of the annular clamping groove 81. The vertical shaft rivet 8 is fixed inside the wheel hub 7 through the annular clamping groove 81 to prevent it from shaking or coming out.

[0030] Please refer to Figure 7 , a fitting hole is formed on the surface of the U-shaped clamping plate 16. The chute 12 passes through the fitting hole to connect and fix the U-shaped clamping plate 16 and the socket 11. The U-shaped clamping plate 16 is fixed inside the button base 14 through the first mounting screw 13. Chamfers are arranged on the surface of the U-shaped clamping plate 16. A fixing groove 1601 is formed on the surface of the U-shaped clamping plate 16. The U-shaped clamping plate 16 is in clamping fit with the annular clamping groove 81 through the fixing groove 1601. The annular clamping groove 81 is located at the bottom of the vertical shaft rivet 8. The vertical shaft rivet 8 can be fixed inside the wheel hub 7 through the U-shaped clamping plate 16. The wheel hub 7 is connected and fixed to the rear cover 17 through the second mounting screw 18. A circular through hole is formed on the surface of the rear cover 17, and the bottom end of the vertical shaft rivet 8 extends into the circular through hole.

[0031] Working principle: During installation, the wheel hub 7 is placed in the placement groove 101, and then the wheel hub 7 is fixed inside the placement groove 101 by screws passing through the mounting holes 102 and the fixing holes 1701, so that the wheel hub module is integrated with the entire universal wheel module, making the overall structure more compact and realizing lightweight design.

[0032] Then, the push button 10 is pushed to make the socket 11 slide inside the chute 12, so as to drive the button base 14 and the U-shaped clamping plate 16 to move, creating a hole position. Similarly, the vertical shaft rivet 8 is inserted into the connecting seat 71. The button base 14 is pushed to move by the elastic force of the spring 15, and at the same time, the U-shaped clamping plate 16 is driven to move until the fixing groove 1601 fits against the inner wall of the annular clamping groove 81. The vertical shaft rivet 8 is fixed inside the wheel hub 7 through the annular clamping groove 81 to prevent it from shaking or coming out, realizing the connection and fixation between the wheel frame module and the wheel hub module. Through the cooperation of the wheel frame module and the wheel hub module with the luggage, by minimizing the shape of the wheel hub as much as possible to adapt to various box shapes, the available space inside the box is increased under the same outer shape area, and the outer shape size and weight of the box are reduced, thus meeting the requirements for air transportation.

[0033] When in use, place the item inside the luggage body 1, and the luggage body 1 can be conveniently moved through the rollers 4 at the bottom. When the rollers 4 are worn out after long-term use and need to be replaced, push the push button 10 to make the socket 11 slide in the chute 12, thereby driving the button seat 14 and the U-shaped clamping plate 16 to move until the U-shaped clamping plate 16 disengages from the annular slot 81, and then the vertical shaft rivet 8 can be pulled out from the inside of the connecting seat 71, realizing the convenient disassembly of the roller 4. Just reinstall the new wheel frame module. Using this process to replace the roller 4 not only uses less materials and occupies less area, but is also more convenient and fast.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Compact lightweight detachable universal wheel for luggage, including a luggage body (1), characterized in that: A wheel frame module and a wheel shell module are provided at the bottom of the luggage body (1). The wheel frame module includes a wheel frame (2). A transverse shaft rivet (3) is arranged inside the wheel frame (2). Both ends of the transverse shaft rivet (3) passing through the transverse shaft hole of the wheel frame (2) are respectively connected and fixed to the rollers (4). The wheel shell module includes a wheel shell (7). A vertical shaft rivet (8) is arranged inside the wheel shell (7). The upper end of the vertical shaft rivet (8) is connected and fixed to the vertical shaft hole of the wheel frame (2). The vertical shaft hole of the wheel shell (7) has a rotation stopping surface. The rotation stopping surface at the lower end of the vertical shaft rivet (8) is correctly placed into the wheel shell (7). A push button (10) is arranged on the surface of the wheel shell (7). The bottom of the push button (10) is fixedly connected to a socket (11). A button seat (14) is arranged inside the wheel shell (7). A U-shaped clamping plate (16) is arranged inside the button seat (14).

2. The compact, lightweight, detachable universal wheel for luggage according to claim 1, wherein: The wheel frame (2) is respectively connected and fixed to the rollers (4) on both sides through the transverse shaft rivet (3). A gasket (5) is arranged at one end of the transverse shaft rivet (3). Heat-resistant and wear-resistant nylon bearings are arranged in the transverse shaft holes of both the wheel frame (2) and the rollers (4). The gasket (5) prevents the transverse shaft rivet (3) from loosening. A pin rivet (6) is arranged inside the wheel frame (2). The pin rivet (6) passes through the pin hole inside the wheel frame (2) and the pin slot at the top of the vertical shaft rivet (8) for riveting.

3. The compact lightweight detachable luggage universal wheel according to claim 2, wherein: A vertical shaft rivet (8) is arranged in the vertical shaft hole of the wheel frame (2). The top of the vertical shaft rivet (8) is attached to the wear-resistant piece (9) in the vertical shaft hole of the wheel frame (2). An annular clamping groove (81) is formed at the bottom of the vertical shaft rivet (8). The vertical shaft rivet (8) is in plug-in fit with a connecting seat (71). The connecting seat (71) is fixedly connected to the surface of the wheel shell (7).

4. The compact lightweight detachable luggage universal wheel according to claim 3, characterized in that: A sliding groove (12) is formed on the upper surface of the wheel shell (7). The inside of the sliding groove (12) is in sliding connection with the outside of the socket (11). A threaded groove is formed at the bottom of the socket (11). The socket (11) is in threaded fit with a mounting screw one (13). The bottom of the socket (11) passes through the sliding groove (12) and is in plug-in fit with the button seat (14).

5. The compact, lightweight, detachable universal wheel for luggage according to claim 4, characterized in that: A spring (15) is arranged on one side of the button seat (14). The spring (15) is located in the space formed by the tail of the button seat (14) and the installation groove inside the wheel shell (7). A relief hole for placing the U-shaped clamping plate (16) is formed on the side surface of the button seat (14). The U-shaped clamping plate (16) is located at the bottom of the button seat (14). A matching hole is formed on the surface of the U-shaped clamping plate (16). The sliding groove (12) passes through the matching hole to connect and fix the U-shaped clamping plate (16) and the socket (11).

6. The compact, lightweight, detachable luggage universal wheel according to claim 5, characterized in that: A fixing groove (1601) is formed on the surface of the U-shaped clamping plate (16). The U-shaped clamping plate (16) is in clamping fit with the annular clamping groove (81) through the fixing groove (1601). The annular clamping groove (81) is located at the bottom of the vertical shaft rivet (8).

7. The compact, lightweight, detachable universal wheel for luggage according to claim 1, characterized in that: The wheel housing (7) is fixedly connected to the rear cover (17) by mounting screws II (18). A placement groove (101) is formed at the bottom of the luggage body (1). Mounting holes (102) are provided on the inner cavity wall of the placement groove (101). The rear cover (17) is fixedly connected to the luggage body (1) by screws passing through the fixing holes (1701) and the mounting holes (102).

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