Universal wheel and luggage

Abstract

The utility model relates to the field of luggage, disclose a universal wheel and luggage, universal wheel includes first mounting piece, second mounting piece, locking part and gyro wheel part, locking part is used for locking or releasing first mounting piece and second mounting piece, when locking part locks first mounting piece and second mounting piece, second mounting piece is axially locked relative to first mounting piece, and second mounting piece can rotate relative to first mounting piece circumferentially, when locking part releases first mounting piece and second mounting piece, second mounting piece can be detachable relative to first mounting piece, gyro wheel part is installed in second mounting piece, through above -mentioned structure, to solve the technical problem that user is more complex in the process of replacing new universal wheel in prior art.

Description

Technical Field

[0001] This utility model relates to the field of luggage, and in particular to a universal wheel and luggage. Background Technology

[0002] Luggage and bags are generally used to refer to various containers used for carrying, packing, and protecting items, including suitcases, backpacks, handbags, and so on.

[0003] In related technologies, some bags are large in size and weight, such as suitcases; for bags that are large in size and weight, in order to make it easier for users to carry them, most suitcases are equipped with universal wheels at the bottom, so that users can carry them by dragging.

[0004] However, the swivel wheels wear down when they rub against the ground. To facilitate carrying, they are generally small, making them prone to damage from excessive wear. Replacing them requires removing them from the bag, a rather complicated process. Utility Model Content

[0005] The present invention aims to provide a universal wheel and a bag to solve the technical problem that users face when replacing new universal wheels in the prior art.

[0006] The technical problem solved by this utility model embodiment is addressed by the following technical solution:

[0007] One embodiment of this utility model provides a universal wheel, comprising:

[0008] First installation component;

[0009] Second mounting component;

[0010] A locking component is provided for locking or releasing the first mounting member and the second mounting member; when the locking component locks the first mounting member and the second mounting member, the second mounting member is axially locked relative to the first mounting member, and the second mounting member is circumferentially rotatable relative to the first mounting member; when the locking component releases the first mounting member and the second mounting member, the second mounting member is detachable relative to the first mounting member.

[0011] A roller assembly, which is mounted on the first mounting member.

[0012] In some embodiments, the first mounting member includes a body and a pivot member, the pivot member being mounted on the body and protruding from one side of the body;

[0013] The second mounting member has a mounting groove on one side. When the locking member locks the first mounting member and the second mounting member, the rotating shaft is rotatably connected in the mounting groove. When the locking member releases the first mounting member and the second mounting member, the rotating shaft can extend relative to the mounting groove.

[0014] In some embodiments, the rotating shaft has an annular positioning groove that surrounds the circumferential sidewall of the rotating shaft; the locking member can be inserted into or extended from the annular positioning groove.

[0015] When the locking component locks the first mounting member and the second mounting member, the locking component is inserted into the annular positioning groove; when the locking component releases the first mounting member and the second mounting member, the locking component extends out of the annular positioning groove.

[0016] In some embodiments, the second mounting member has a connecting groove, one end of which is connected to the mounting groove, and the other end of which passes through one side of the second mounting member;

[0017] When the locking component locks the first mounting member and the second mounting member, the locking component extends into the mounting groove through the connecting groove and is partially placed in the annular positioning groove; when the locking component releases the first mounting member and the second mounting member, the locking component extends out through the connecting groove and disengages from the second mounting member.

[0018] In some embodiments, the locking component includes a screw, which is threadedly connected to the wall of the connecting groove when the locking component locks the first mounting member and the second mounting member.

[0019] In some embodiments, the locking component further includes a nut connected to the screw, and the connecting groove includes a first connecting groove and a second connecting groove that are connected to each other. The first connecting groove passes through one side of the second mounting member, and the second connecting groove communicates with the mounting groove. The diameter of the first connecting groove is larger than the diameter of the second connecting groove.

[0020] When the locking component locks the first mounting member and the second mounting member, the screw is threadedly connected to the wall of the second connecting groove, and the nut abuts against the wall of the first connecting groove.

[0021] In some embodiments, the pivot member includes a first limiting step, the groove wall of the mounting groove includes a second limiting step, and when the locking member locks the first mounting member and the second mounting member, the first limiting step abuts against the second limiting step.

[0022] In some embodiments, in the direction in which the pivot is inserted into the mounting groove, the cross-sectional area of ​​the pivot located at the first limiting step gradually decreases.

[0023] In some embodiments, the roller component includes a hub and a wheel cover. The hub is rotatably connected to the second mounting member. The hub has multiple slots, all of which are circumferentially arranged around the rotation axis of the hub. The wheel cover includes snap-fit ​​protrusions, each of which corresponds to a slot. The wheel cover is located on the side of the hub facing away from the second mounting member, and each snap-fit ​​protrusion snaps into a corresponding slot.

[0024] Compared to existing technologies, the casters can be installed on the bottom of the bag. The locking component is used to lock or release the first and second mounting components; when the user needs to drag the bag, the locking component can lock the first and second mounting components, with the second mounting component axially locked relative to the first mounting component and rotating circumferentially relative to the first mounting component; when the user drags the bag, the roller component can generate rolling friction with the ground to reduce resistance, and during the bag's turning process, the second mounting component can rotate axially relative to the first mounting component.

[0025] When the roller assembly is severely worn, or when the user needs to replace it with a different color or model of roller assembly, the user can first release the locking component to release the first mounting piece from the second mounting piece, then detach the second mounting piece relative to the first mounting piece, then install another second mounting piece connected to the roller assembly onto the first mounting piece, and finally lock the locking component to lock the first mounting piece and the replaced second mounting piece, thus completing the replacement of one roller assembly; the omnidirectional wheel in this embodiment makes it easier to operate when replacing roller assemblies. Attached Figure Description

[0026] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0027] Figure 1 This is a schematic diagram of the structure of the bag in one embodiment of this utility model;

[0028] Figure 2 yes Figure 1 A 3D view of the universal wheels on the bag;

[0029] Figure 3 yes Figure 2 Rear view of the omnidirectional wheel;

[0030] Figure 4 yes Figure 2 A cross-sectional view of the caster wheel without the pivot assembly;

[0031] Figure 5 yes Figure 2 A schematic diagram of the structure of the first mounting component of the caster wheel;

[0032] Figure 6 yes Figure 2 A cross-sectional view of the locking mechanism of the caster wheel;

[0033] Figure 7 yes Figure 2 A cross-sectional view of the caster wheel;

[0034] Figure 8 yes Figure 2 A perspective view of the assembly of the second mounting component of the caster wheel and a roller component;

[0035] Figure 9 yes Figure 2 A 3D view of the hub of the omnidirectional wheel;

[0036] Figure 10 yes Figure 2 A 3D view of the wheel cover of the omnidirectional wheel.

[0037] Figure label:

[0038] 1000. Luggage; 100. Casters; 10. First mounting piece; 12. Body; 14. Rotating shaft; 142. First limiting step; 1402. Annular positioning groove; 1422. Side groove wall; 16. Plastic support piece; 162. First support piece; 164. Second support piece; 18. Side limiting plate; 20. Second mounting piece; 22. Second limiting step; 24. Annular support frame; 26. Strip support frame; 202. Mounting groove; 204. Connecting groove; 2042. First connecting groove; 2044. Second connecting groove ; 206, First receiving slot; 30, Locking component; 32, Screw; 34, Nut; 40, Roller component; 42, Wheel hub; 422, Inner support ring; 424, Outer support ring; 426, Support rod; 428, Support piece; 4282, Slot; 4202, Second receiving slot; 44, Wheel cover; 442, Snap-fit ​​protrusion; 4422, Elastic body; 4424, Abutment block; 4426, Support bar; 444, Cover-like structure; 50, Connecting shaft; 210, Handle; 220, Bag; M1, Reference plane. Detailed Implementation

[0039] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on the other element, or one or more intermediate elements can exist between them. The terms "upper," "lower," "left," "right," "upper end," "lower end," "top," and "bottom," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0041] The following detailed description, in conjunction with all the accompanying drawings, uses specific embodiments to illustrate a universal wheel 100 and a bag provided in this application.

[0042] Please see Figure 1 One embodiment of this utility model provides a bag 1000 including omnidirectional wheels 100, handles 210 and a bag body 220. The handles 210 are installed on the bag body 220 for users to pull. The number of omnidirectional wheels 100 can be four, and the four omnidirectional wheels 100 are respectively connected to the four corners of the lower end of the bag body 220. When the user pulls the bag body 220, the four omnidirectional wheels 100 can simultaneously contact the ground and provide support for the bag body 220.

[0043] Please refer to Figures 2 to 5 In one embodiment, the caster wheel 100 includes a first mounting member 10, a second mounting member 20, a locking member 30, and a roller member 40; the locking member 30 is used to lock or release the first mounting member 10 and the second mounting member 20; when the locking member 30 locks the first mounting member 10 and the second mounting member 20, the second mounting member 20 is axially locked relative to the first mounting member 10, and the second mounting member 20 is circumferentially rotatable relative to the first mounting member 10; when the locking member 30 releases the first mounting member 10 and the second mounting member 20, the second mounting member 20 is detachable relative to the first mounting member 10; the roller member 40 is mounted on the second mounting member 20.

[0044] With the above structure, the caster wheel 100 can be installed on the bottom of the case 220. The locking component 30 is used to lock or release the first mounting member 10 and the second mounting member 20; when the user needs to drag the case, the locking component 30 can lock the first mounting member 10 and the second mounting member 20, the second mounting member 20 is axially locked relative to the first mounting member 10, and the second mounting member 20 can rotate circumferentially relative to the first mounting member 10; when the user drags the case 1000, the roller component 40 can generate rolling friction with the ground to reduce resistance, and during the turning process of the case 1000, the second mounting member 20 can rotate circumferentially relative to the first mounting member 10.

[0045] When the roller component 40 is severely worn, or when the user needs to replace the roller component 40 with a different color or model, the user can first use the locking component 30 to release the first mounting member 10 and the second mounting member 20, then detach the second mounting member 20 relative to the first mounting member 10, and then install another second mounting member 20 connected to the roller component 40 onto the first mounting member 10. Finally, the locking component 30 locks the first mounting member 10 and the replaced second mounting member 20, thus completing the replacement of the roller component 40. In this embodiment, the universal wheel 100 makes it easier to operate when replacing the roller component 40.

[0046] Specifically, in this embodiment, the first mounting member 10 may include a block-like structure made of plastic. The first mounting member 10 may include multiple plastic support plates 16. The plastic support plates 16 include a first support plate 162 and a second support plate 164. One end of the first support plate 162 of the first mounting member 10 faces the rotation axis of the second mounting member 20, and the other opposite end faces away from the rotation axis of the second mounting member 20. The second support plate 164 of the first mounting member 10 surrounds the rotation axis of the second mounting member 20. All the plastic support plates 16 of the first mounting member 10 can form a mesh-like structure. The plastic support plates 16 can be located on the side of the first mounting member 10 facing away from the second mounting member 20. The plastic support plates 16 can be used to abut against the body 220 of the bag 1000. The first mounting member 10 can be connected to the body 220 of the bag 1000 by a threaded connector, such as a screw or bolt. The first mounting member 10 may include a pivot member 14. The circumferential sidewall of the pivot member 14 is provided with an annular positioning groove 1402.

[0047] The first mounting component 10 may further include two side limiting plates 18, which are perpendicular to each other, and one side of one side limiting plate 18 is connected to one side of the other side limiting plate 18. The side of the side limiting plate 18 can be connected to the side of the plastic support piece 16. The height of the side limiting plate 18 is greater than the height of the plastic support piece 16, so that the side limiting plate 18 can protrude relative to the side of the plastic support piece 16 facing away from the roller component 40. The protruding part of the side limiting plate 18 relative to the plastic support piece 16 can abut against one side of the case body 220 of the bag 1000 to play a limiting role.

[0048] The second mounting member 20 may also include a block-like structure made of plastic. The upper side of the second mounting member 20 may have a mounting groove 202 adapted to the rotating shaft 14 for insertion. The locking member 30 may include a screw. When the locking member 30 locks the first mounting member 10 and the second mounting member 20, the locking member 30 may partially extend into the mounting groove 202 and engage with the annular positioning groove 1402 of the rotating shaft 14, thereby axially locking the second mounting member 20 relative to the first mounting member 10 and allowing the second mounting member 20 to rotate circumferentially relative to the first mounting member 10.

[0049] There can be two roller components 40, and the roller components 40 can be rotatably connected to the second mounting member 20 by means of hinge or bearing connection.

[0050] In other embodiments, the positions of the mounting groove and the pivot can be interchanged, that is, one of the first mounting member 10 and the second mounting member 20 has a mounting groove, and the other includes a pivot; the first mounting member 10 and the second mounting member 20 can also be connected in other ways, for example, the first mounting member 10, the second mounting member 20 and the pivot 14 are independent of each other, the pivot 14 can be inserted into the first mounting member 10 and the second mounting member 20 at the same time, and is detachably connected to the second mounting member 20 by the locking member 30; the locking member 30 may also include other structures, such as a snap-fit ​​protrusion or a pin.

[0051] Please refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 In some embodiments, the first mounting member 10 includes a body 12 and a pivot member 14, the pivot member 14 being mounted on the body 12 and protruding from one side of the body 12.

[0052] The second mounting member 20 has a mounting groove 202 on one side. When the locking member 30 locks the first mounting member 10 and the second mounting member 20, the rotating shaft 14 is rotatably housed in the mounting groove 202. When the locking member 30 releases the first mounting member 10 and the second mounting member 20, the rotating shaft 14 can extend relative to the mounting groove 202.

[0053] With the above structure, the first mounting member 10 includes a body 12 and a pivot member 14. The pivot member 14 is mounted on the body 12 and protrudes from one side of the body 12. The second mounting member 20 has a mounting groove 202 on one side. During the assembly of the first mounting member 10 and the second mounting member 20, it is only necessary to insert the pivot member 14 into the mounting groove 202 and lock the first mounting member 10 and the second mounting member 20 with the locking member 30. During the disassembly of the first mounting member 10 and the second mounting member 20, it is only necessary to release the first mounting member 10 and the second mounting member 20 with the locking member 30 and then pull the pivot member 14 out from the mounting groove 202. The assembly and disassembly of the caster wheel 100 is more convenient.

[0054] Specifically, in this embodiment, the pivot 14 can be a cylindrical steel structure. The pivot 14 can be fixed to the body 12 by adhesive application or threaded connection. The pivot 14 and the locking component 30 can be connected or disconnected by plugging and unplugging. The second mounting component 20 can include a cylindrical structure, and a mounting groove 202 can be formed on the cylindrical structure of the second mounting component 20. The shape of the mounting groove 202 can be adapted to the shape of the pivot 14.

[0055] The main body 12 includes a plastic support plate 16 and two side limiting plates 18.

[0056] The second mounting component 20 can be in the form of a mesh-like support structure, with the mounting groove 202 located on one side of the second mounting component 20. The second mounting component 20 includes multiple annular support frames 24 and multiple strip support frames 26. The multiple annular support frames 24 are sequentially nested along the radial direction of the annular support frame 24 and are spaced apart and coaxially arranged. The roller component 40 can be rotatably connected to the annular support frame 24 with the smallest diameter. Each strip support frame 26 extends radially along the annular support frame 24, with one end facing the rotation axis of the roller component 40 and the other end facing away from the rotation axis of the roller component 40. Each strip support frame 26 is connected between two adjacent annular support frames 24.

[0057] In other embodiments, the pivot member 14 may also include other structures, such as a threaded hole at the lower end of the pivot member 14, a rotatable block structure connected to the second mounting member 20, and a locking member 30 that can extend into the rotatable block structure and be threadedly connected to the threaded hole at the end of the pivot member 14.

[0058] In some embodiments, the rotating shaft 14 has an annular positioning groove 1402, which is arranged around the circumferential sidewall of the rotating shaft 14; the locking member 30 can be inserted into or extended from the annular positioning groove 1402.

[0059] When the locking component 30 locks the first mounting member 10 and the second mounting member 20, the locking component 30 is inserted into the annular positioning groove 1402; when the locking component 30 releases the first mounting member 10 and the second mounting member 20, the locking component 30 extends out of the annular positioning groove 1402.

[0060] With the above structure, the annular positioning groove 1402 is arranged around the circumferential sidewall of the rotating shaft 14; the locking member 30 can be inserted into or extended from the annular positioning groove 1402; when the locking member 30 is inserted into the annular positioning groove 1402, the side wall 1422 of the annular positioning groove 1402 can abut against the locking member 30, and the locking member 30 can lock the rotating shaft 14 through the side wall 1422 of the annular positioning groove 1402, so that the second mounting member 20 is axially locked relative to the first mounting member 10, and the second mounting member 20 can rotate circumferentially relative to the first mounting member 10.

[0061] When the locking component 30 extends out of the annular positioning groove 1402, the locking component 30 does not contact the side groove wall 1422 of the annular positioning groove 1402, and the rotating shaft 14 can extend out of the mounting groove 202 in the axial direction so that the second mounting component 20 is detachable relative to the first mounting component 10.

[0062] Specifically, in this embodiment, the circle fitted by the annular positioning groove 1402 can be perpendicular to the central axis of the rotating shaft 14, and the cross-section of the annular positioning groove 1402 can be similar to a rectangle.

[0063] In other embodiments, the cross-section of the annular positioning groove 1402 may also be in other shapes, such as semi-circular or trapezoidal.

[0064] In some embodiments, the second mounting member 20 has a connecting groove 204, one end of which is connected to the mounting groove 202, and the other end of which passes through one side of the second mounting member 20.

[0065] When the locking component 30 locks the first mounting member 10 and the second mounting member 20, the locking component 30 extends into the mounting groove 202 through the connecting groove 204 and is partially placed in the annular positioning groove 1402; when the locking component 30 releases the first mounting member 10 and the second mounting member 20, the locking component 30 extends out through the connecting groove 204 and disengages from the second mounting member 20.

[0066] With the above structure, the connecting groove 204 allows the locking component 30 to be inserted from the second mounting member 20, making it more convenient for the user to insert or remove the locking component 30.

[0067] Specifically, the two roller components 40 are symmetrically distributed along the reference plane M1, the central axis of the rotating shaft 14 is also located in the reference plane M1, and the central axis of the connecting groove 204 is located on one side of M1, so that the locking component 30 can be inserted into the annular positioning groove 1402 and pass through one side of the rotating shaft 14, so that the locking component 30 has a larger contact area with the side groove wall 1422 of the annular positioning groove 1402.

[0068] In some embodiments, the locking component 30 includes a screw 32, which is threadedly connected to the wall of the connecting groove 204 when the locking component 30 locks the first mounting member 10 and the second mounting member 20.

[0069] With the above structure, the locking component 30 includes a screw 32, which is threaded to the wall of the connecting groove 204; the user only needs to rotate the screw 32 to complete the operation of inserting or extending the locking component 30 into the annular positioning groove 1402; this further simplifies the operation steps of assembling and disassembling the caster wheel 100 in this embodiment.

[0070] Specifically, the screw 32 can have a cylindrical structure. In the extension direction of the screw 32, the screw 32 can be provided with external threads at all points, or the screw 32 can be provided with only one section of external threads. The connecting groove 204 can include a circular through groove, and the groove wall of the connecting groove 204 can be provided with internal threads.

[0071] In some embodiments, the locking component 30 further includes a nut 34 connected to the screw 32. The connecting groove 204 includes a first connecting groove 2042 and a second connecting groove 2044 connected to each other. The first connecting groove 2042 passes through one side of the second mounting component 20, and the second connecting groove 2044 communicates with the mounting groove 202. The diameter of the first connecting groove 2042 is larger than the diameter of the second connecting groove 2044.

[0072] When the locking component 30 locks the first mounting component 10 and the second mounting component 20, the screw 32 is threadedly connected to the groove wall of the second connecting groove 2044, and the nut 34 abuts against the groove wall of the first connecting groove 2042.

[0073] With the above structure, the nut 34 is connected to the screw 32. The connecting groove 204 includes a first connecting groove 2042 and a second connecting groove 2044 that are connected to each other. The screw 32 is threaded to the groove wall of the second connecting groove 2044, and the nut 34 abuts against the groove wall of the first connecting groove 2042. The groove wall of the first connecting groove 2042 plays a positioning role for the nut 34. When the nut 34 abuts against the groove wall of the first connecting groove 2042, the screw 32 can extend into the annular positioning groove 1402.

[0074] Specifically, the first connecting groove 2042 and the second connecting groove 2044 are coaxially arranged. The groove wall of the first connecting groove 2042 is a smooth groove wall without internal threads, while the groove wall of the second connecting groove 2044 may have internal threads. The nut 34 may have a cylindrical structure, and the diameter of the nut 34 is adapted to the diameter of the first connecting groove 2042.

[0075] In some embodiments, the pivot member 14 includes a first limiting step 142, the groove wall of the mounting groove 202 includes a second limiting step 22, and when the locking member 30 locks the first mounting member 10 and the second mounting member 20, the first limiting step 142 abuts against the second limiting step 22.

[0076] With the above structure, during the process of inserting the rotating shaft 14 into the mounting groove 202, the first limiting step 142 and the second limiting step 22 can play a positioning role. When the annular positioning groove 1402 of the rotating shaft 14 is located at the position of the locking component 30, the first limiting step 142 abuts against the second limiting step 22, so that the rotating shaft 14 can no longer be inserted into the mounting groove 202; so as to avoid the rotating shaft 14 being inserted into the mounting groove 202 too deeply, causing the locking component 30 and the annular positioning groove 1402 to be misaligned.

[0077] Specifically, in this embodiment, both the first limiting step 142 and the second limiting step 22 may include an annular structure formed by inclined surfaces. The diameter of the portion of the pivot member 14 located on the side of the first limiting step 142 facing the body 12 is larger, and the diameter of the portion of the pivot member 14 located on the side of the first limiting step 142 facing away from the body 12 is smaller; the annular positioning groove 1402 is formed on the portion of the pivot member 14 located on the side of the first limiting step 142 facing away from the body 12.

[0078] The mounting groove 202 has a larger diameter on the side of the second limiting step 22 facing the body 12, and a smaller diameter on the side of the mounting groove 202 facing away from the body 12; the connecting groove 204 connects to the portion of the mounting groove 202 on the side of the second limiting step 22 facing away from the body 12. The extending direction of the connecting groove 204 is perpendicular to the extending direction of the mounting groove 202.

[0079] In other embodiments, the first limiting step 142 and the second limiting step 22 may also include other structures, such as the first limiting step 142 and the second limiting step 22 both including an annular surface that is perpendicular to the central axis of the rotating shaft 14.

[0080] In some embodiments, in the direction in which the pivot 14 is inserted into the mounting groove 202, the cross-sectional area of ​​the pivot 14 at the first limiting step 142 gradually decreases.

[0081] With the above structure, in the direction in which the rotating shaft 14 is inserted into the mounting groove 202, the cross-sectional area of ​​the rotating shaft 14 at the first limiting step 142 gradually decreases; so that there is a larger contact area between the first limiting step 142 and the second limiting step 22, and the first limiting step 142 and the second limiting step 22 can play a more accurate positioning role.

[0082] Specifically, both the first limiting step 142 and the second limiting step 22 can include an annular structure formed by inclined surfaces.

[0083] Please refer to Figure 7 , Figure 8 , Figure 9 and Figure 10 In some embodiments, there are two roller components 40, which are located on opposite sides of the second mounting member 20.

[0084] With the above structure, there are two roller components 40, each of which can contact the ground and support the second mounting member 20, so that the caster wheel 100 in this embodiment can move more stably on the ground.

[0085] Specifically, in this embodiment, both roller components 40 can be rotatably connected to the second mounting component 20 via independent rotating shafts.

[0086] In other embodiments, the two roller components 40 may also be connected to opposite ends of a rotating shaft, which passes through the second mounting member 20 and is rotatably connected to the second mounting member 20.

[0087] In some embodiments, the roller component 40 includes a hub 42 and a wheel cover 44. The hub 42 is rotatably connected to the second mounting member 20. The hub 42 has a plurality of slots 4282, all of which are circumferentially arranged around the rotation axis of the hub 42. The wheel cover 44 includes a snap-fit ​​protrusion 442, which corresponds one-to-one with the slots 4282. The wheel cover 44 is located on the side of the hub 42 facing away from the second mounting member 20, and each snap-fit ​​protrusion 442 snaps into a corresponding slot 4282.

[0088] With the above structure, the wheel cover 44 is located on the side of the wheel hub 42 facing away from the second mounting member 20; the wheel cover 44 can protect the wheel hub 42, preventing dust or particles and other debris from entering the wheel hub 42, thereby preventing the wheel hub 42 from jamming with the second mounting member 20. Each snap-fit ​​protrusion 442 snaps into a corresponding slot 4282; so that the wheel cover 44 can be more stably connected to the wheel hub 42, reducing the possibility of the wheel cover 44 detaching from the wheel hub 42.

[0089] Specifically, the hub 42 may include an inner support ring 422, an outer support ring 424, a support rod 426, and a support plate 428. The inner support ring 422 and the outer support ring 424 are coaxially arranged. The inner support ring 422 can be rotatably connected to the second mounting member 20. The outer support ring 424 surrounds the inner support ring 422 and is spaced apart from the inner support ring 422. There are multiple support rods 426. One end of the support rod 426 is connected to the inner support ring 422, and the other end of the support rod 426 is connected to the outer support ring 424. A support plate 428 is provided between every two adjacent support rods 426. The support plate 428 fills the gap between two adjacent support rods 426. A slot 4282 can be formed on the support plate 428.

[0090] The wheel cover 44 may include a circular cover-like structure 444, and four snap-fit ​​protrusions 442 located on the side of the wheel cover 44 facing the wheel hub 42. The snap-fit ​​protrusion 442 may include an elastic body 4422, an abutment block 4424, and a support strip 4426. The elastic body 4422 may be a rectangular sheet structure, with one end of the elastic body 4422 connected to the cover-like structure 444 of the wheel cover 44, and the other opposite end of the elastic body 4422 facing the slot 4282.

[0091] The abutment block 4424 and the support bar 4426 are respectively connected to the opposite sides of the elastic body 4422. The abutment block 4424 includes a structure similar to a triangular prism. The abutment block 4424 is located at one end of the elastic body 4422 facing the slot 4282. The surface of the abutment block 4424 facing the slot 4282 is used to abut against the groove wall of the slot 4282 and drive the elastic body 4422 to deform. After the abutment block 4424 extends into the slot 4282, the elastic body 4422 resets and drives the abutment block 4424 to abut against the groove wall of the slot 4282, so that the locking protrusion 442 is locked into the slot 4282.

[0092] The support bar 4426 may include a trapezoidal plate-like structure, with one side of the support bar 4426 connected to the cover-like structure 444 of the wheel cover 44, and the other adjacent side of the support bar 4426 connected to the elastic body 4422.

[0093] The second mounting member 20 may have a first receiving groove 206, and the wheel hub 42 may have a second receiving groove 4202. The first receiving groove 206 is a circular through groove, and a bearing (not shown) is provided in the circular through groove. The second receiving groove 4202 is a circular blind groove. The caster wheel 100 also includes a connecting shaft 50. The inner diameter of the second receiving groove 4202 is adapted to the outer diameter of the connecting shaft 50. One end of the connecting shaft 50 is inserted into and fixed in the second receiving groove 4202 of one wheel hub 42. The connecting shaft 50 passes through the bearing in the first receiving groove 206. The other end of the connecting shaft 50 is inserted into and fixed in the second receiving groove 4202 of another wheel hub 42, thereby causing the roller component 40 to be rotatably connected to the second mounting member 20.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail; although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A universal wheel, characterized by, include: First installation component; Second mounting component; A locking component, the locking component being used to lock or release the first mounting member and the second mounting member; When the locking component locks the first mounting member and the second mounting member, the second mounting member is axially locked relative to the first mounting member, and the second mounting member can rotate circumferentially relative to the first mounting member; when the locking component releases the first mounting member and the second mounting member, the second mounting member can be detached relative to the first mounting member. A roller assembly, which is mounted on the second mounting member.

2. The universal wheel according to claim 1, characterized in that, The first mounting component includes a body and a pivot component, the pivot component is mounted on the body, and the pivot component protrudes from one side of the body; The second mounting member has a mounting groove on one side. When the locking member locks the first mounting member and the second mounting member, the rotating shaft is rotated and accommodated in the mounting groove. When the locking member releases the first mounting member and the second mounting member, the rotating shaft can extend relative to the mounting groove.

3. The universal wheel according to claim 2, characterized in that, The rotating shaft is provided with an annular positioning groove, which is arranged around the circumferential sidewall of the rotating shaft; the locking component can be inserted into or extended from the annular positioning groove. When the locking component locks the first mounting member and the second mounting member, the locking component is inserted into the annular positioning groove; when the locking component releases the first mounting member and the second mounting member, the locking component extends out of the annular positioning groove.

4. The universal wheel according to claim 3, characterized in that, The second mounting component has a connecting groove, one end of which is connected to the mounting groove, and the other end of which passes through one side of the second mounting component; When the locking component locks the first mounting member and the second mounting member, the locking component extends into the mounting groove through the connecting groove and is partially placed in the annular positioning groove; when the locking component releases the first mounting member and the second mounting member, the locking component extends out through the connecting groove and disengages from the second mounting member.

5. The universal wheel according to claim 4, characterized in that, The locking component includes a screw, and when the locking component locks the first mounting member and the second mounting member, the screw is threadedly connected to the groove wall of the connecting groove.

6. The universal wheel according to claim 5, characterized in that, The locking component also includes a nut connected to the screw, and the connecting groove includes a first connecting groove and a second connecting groove that are connected to each other. The first connecting groove passes through one side of the second mounting member, and the second connecting groove communicates with the mounting groove. The diameter of the first connecting groove is larger than the diameter of the second connecting groove. When the locking component locks the first mounting member and the second mounting member, the screw is threadedly connected to the wall of the second connecting groove, and the nut abuts against the wall of the first connecting groove.

7. The universal wheel according to claim 2, characterized in that, The pivot member includes a first limiting step, and the groove wall of the mounting groove includes a second limiting step. When the locking component locks the first mounting member and the second mounting member, the first limiting step abuts against the second limiting step.

8. The universal wheel according to claim 7, characterized in that, In the direction in which the rotating shaft is inserted into the mounting groove, the cross-sectional area of ​​the rotating shaft at the first limiting step gradually decreases.

9. The universal wheel according to claim 1, characterized in that, The roller component includes a hub and a wheel cover. The hub is rotatably connected to the second mounting member. The hub has multiple slots, all of which are circumferentially arranged around the axis of rotation of the hub. The wheel cover includes snap-fit ​​protrusions, each of which corresponds to a slot. The wheel cover is located on the side of the hub facing away from the second mounting member, and each snap-fit ​​protrusion snaps into a corresponding slot.

10. A type of bag, characterized in that, Includes the caster wheel as described in any one of claims 1-9.

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